Scope Precision EstimateContact Us

Data Center Estimating Services

Send your electrical single-line, mechanical plans, and spec book. You get a division-organized takeoff with busway runs, UPS counts, and cooling loads in 24–48 hours.

24–48 hours for most projectsTypical turnaround
Excel + marked-up PDFsOrganized by CSI section
ZIP-code pricingLocal material and labor
Price confirmed firstBefore any work starts
Sample estimate sheet
Division 26 — ElectricalSample format
Line itemQtyUnitLength
Busway run 4000A overhead1,250LF1,250 LF
UPS module 750 kVA static6EA6 EA
CRAH unit 30-ton chilled water24EA24 EA
Ground ring 4/0 bare copper1,800LF1,800 LF
Cable tray 24 in ladder2,400LF2,400 LF
Total linear feet5,450 LF
Illustrative quantities. Waste factor applied as a separate line.
Busway plugs counted per row

You are pricing a data center — a building where the electrical and mechanical systems are the building. A generic square-foot number will not survive bid day. As a data center estimating company, we take off the white space, the electrical rooms, and the yard the way the drawings actually sequence them: utility service to switchgear, switchgear to UPS systems, UPS to busway, busway to cabinet. On the mechanical side, our data center mechanical estimating traces chiller plant chilled water loops, CRAH units, and economizer piping rather than treating cooling as a tonnage allowance. Our data center construction estimating takeoffs are organized by CSI MasterFormat division — Division 26 electrical, Division 23 HVAC, Division 27 communications, Division 28 electronic safety and security, Division 03 concrete, Division 05 metals, Division 09 finishes, Division 22 plumbing, Division 21 fire suppression, and Division 16 legacy — so your estimator can drop them straight into your pricing sheet.

Deliverable
Excel estimate + marked-up PDF plans
Organized by
CSI MasterFormat section
Turnaround
24–48 hours for most projects
Pricing
ZIP-code-adjusted material and labor pricing
Software
Bluebeam Revu, PlanSwift, RSMeans data

We build the estimate on a cost breakdown structure that separates general conditions, long lead items, escalation, and contingency, so you can see where the money sits before you mark up. For electrical scope, that means switchgear, UPS modules, busway, panelboards, feeders, and fiber optic backbone pathways. For mechanical scope, that means chillers, CRAH units, pumps, piping, valves, and hot aisle containment or cold aisle containment. We also flag items that affect PUE and any LEED or Energy Star documentation scope that carries cost. Where the design follows a known topology, we map it to TIA-942 or an Uptime Institute tier target and note what that tier changes in the takeoff.

If you also price warehouse construction, manufacturing plants, or cold storage, the format will look familiar. We work from your PDFs and IFC drawings in Bluebeam Revu, PlanSwift, and RSMeans data, with ZIP-code-adjusted material and labor pricing. Where a full takeoff is not practical, we can run parametric estimating from capacity and area metrics. Turnaround is 24–48 hours for most projects, with rush available. Send plans through the get an estimate page and we will confirm scope before starting. We also provide industrial estimating services for other facility types.

Services

What the data center quantity takeoff covers

We measure the mission-critical systems that drive 60–70% of a data center's construction cost. That means counting UPS modules, generator sets, CRAH units, and busway runs — not applying a cost per square foot. The takeoff follows the electrical single-line and mechanical schematics, with quantities tied to plan sheets so you can audit every line. We separate shell-and-core from fit-out so you can price phased delivery.

Utility service entrance switchgear

Utility service entrance switchgear, main breakers, and line-up sections (26 24 00)

Medium-voltage transformers

Medium-voltage transformers, unit substations, and primary conduit (26 12 00)

Static or rotary UPS modules

Static or rotary UPS modules, battery strings, racks, and spill containment (26 33 00)

Diesel generator sets

Diesel generator sets, paralleling gear, day tanks, and fuel piping (26 32 00)

Automatic transfer switches and bypass isolation switches

Automatic transfer switches and bypass isolation switches (26 36 00)

Overhead and underfloor busway runs

Overhead and underfloor busway runs, plug-in units, and end taps (26 25 00)

Remote power panels

Remote power panels, cabinet PDUs, and branch circuit whips (26 24 00)

CRAH/CRAC units

CRAH/CRAC units, chilled water piping, pumps, and economizer (23 63 00)

What every data center estimating takeoff includes

  • Utility service entrance switchgear, main breakers, and line-up sections (26 24 00)
  • Medium-voltage transformers, unit substations, and primary conduit (26 12 00)
  • Static or rotary UPS modules, battery strings, racks, and spill containment (26 33 00)
  • Diesel generator sets, paralleling gear, day tanks, and fuel piping (26 32 00)
  • Automatic transfer switches and bypass isolation switches (26 36 00)
  • Overhead and underfloor busway runs, plug-in units, and end taps (26 25 00)
  • Remote power panels, cabinet PDUs, and branch circuit whips (26 24 00)
  • CRAH/CRAC units, chilled water piping, pumps, and economizer (23 63 00)
  • In-row heat exchangers, CDUs, and facility water loops (23 63 00)
  • Raised access floor, stringers, pedestals, and perforated tiles (08 34 00)
  • Cable tray, fiber raceway, and structured cabling counts (27 11 00 / 27 15 00)
  • Pre-action sprinkler zones and clean-agent suppression cylinders (21 13 00 / 21 13 19)
How we work

How our data center estimators take off a project

  1. Review the electrical single-lineWe start at the utility service and trace every feeder to switchgear, UPS, and panelboards. Each device gets a tag from the drawing, and we record the rating in kVA or amps. This gives us the equipment count before we measure any conduit. We also note the redundancy tier (N, N+1, 2N, 2N+1) because it changes the number of UPS modules, paralleling gear, and busway runs.
  2. Count busway and plug-in unitsBusway is measured run by run from the riser and plan views. We count plug-in units per cabinet row, not per run, because that is how they are bought. End taps and tap boxes are called out separately from the busway length. We also verify the busway rating (e.g., 4000A) and whether it is overhead or underfloor, as that affects support and installation.
  3. Trace cooling loops and CRAH unitsOn the mechanical side we follow chilled water supply and return from the plant to each CRAH. We count units from the schedule, then measure pipe, valves, and specialties from the isometrics. Condensate drains and humidifier piping are added even when not shown. We also check for economizer piping, pumps, and water treatment equipment that may be on separate sheets.
  4. Measure the white space floorRaised access floor is measured by the square foot of usable white space, not the building footprint. We add cutouts, ramps, and equipment ramps at the boundary. Perforated tile counts come from the airflow plan, not a percentage. We also note the pedestal type (e.g., 24 in) and stringer requirements, as these affect material cost and installation time.
  5. Build the division-organized takeoffEvery line is assigned a CSI section and a plan sheet reference. We separate equipment from distribution so you can apply your own labor rates. The final workbook is Excel with a PDF mark-up set showing where each quantity came from. We also include a summary tab by division and a list of assumptions and exclusions for clarity.
  6. Quality check and deliverBefore delivery, a second estimator reviews the takeoff against the drawings for missed items and unit errors. We cross-check equipment counts between the single-line and schedules, and verify linear measurements against plan scales. The final package is sent via email in Excel and PDF, with a brief summary of key quantities and any assumptions. Turnaround is 24–48 hours for most projects.

What we need from you

  • Electrical single-lineShows UPS, switchgear, generator, and ATS counts. Without it we cannot separate equipment from distribution.
  • Mechanical schematicsChilled water and condenser water loops with CRAH locations. Needed to measure pipe and count units.
  • Floor plans and RCPsWhite space layout, busway routes, and cable tray paths. Used for linear measurements and cutout counts.
  • Spec bookDivision 26, 23, 27, and 21 sections. Tells us material types, testing requirements, and included accessories.
  • Equipment schedulesUPS, generator, CRAH, and PDU schedules with ratings. Prevents counting from symbols alone.
  • Site utility planDuct bank route, manholes, and stub-up locations. Often missing from the electrical set.
Sample output

Sample data center estimate format

This is how a typical data center takeoff is organized. Each line ties to a CSI section and a plan sheet so you can verify the quantity.

Sample format — illustrative quantities
SectionLine itemQtyUnitRef.
26 24 00Switchgear line-up 480V, 4000A, 6 sections6EAE-101
26 33 00UPS module 750 kVA static, with battery racks6EAE-201
26 25 00Busway 4000A overhead, incl. end taps1,250LFE-301
23 63 00CRAH unit 30-ton chilled water, floor-mounted24EAM-101
08 34 00Raised access floor, 24 in pedestals, incl. cutouts18,500SFA-201
27 15 00MPO trunk cable 24-strand, per run96EAT-101
26 32 00Generator 2.5 MW diesel, incl. day tank4EAE-401
21 13 19Pre-action sprinkler zone, double interlock12EAFP-101
26 36 00Automatic transfer switch 4000A, 4-pole8EAE-501
23 63 00Chilled water pipe, 8 in, incl. valves and fittings1,200LFM-201

Units we measure in

Data center quantities are counted by the piece for equipment and by the foot for distribution. Here is how we report each unit.

ItemUnitHow it's measured
UPS moduleEACounted per single-line diagram, including battery strings and racks
BuswayLFMeasured along the centerline of the run, including end taps
Cable trayLFMeasured per route, adding 10% for fittings and bends
CRAH unitEACounted per mechanical schedule, with chilled water connections
Chilled water pipeLFMeasured per isometric, including valves and specialties
Concrete slabCYVolume from thickness on section, including equipment pads
Structural steelTONWeight from member sizes and lengths on framing plans
Raised floorSFArea of white space, including cutouts and ramps

Worked example: Takeoff of a 4000A overhead busway run

This example walks through the takeoff of a single overhead busway run from the electrical room to a row of cabinets. All dimensions and quantities are illustrative and do not represent a specific project.

  1. Measure the run length from the plan. On sheet E-301, the busway centerline starts at the switchgear (grid C-4) and ends at the last cabinet (grid F-8). Scaling the plan gives 85 feet. Add 5 feet for the vertical drop from the overhead support to the switchgear terminals. Total run length = 90 LF.

  2. Account for fittings and bends. The run includes two 90° elbows and one offset. Each elbow adds 2 LF of equivalent length, and the offset adds 3 LF. Total equivalent length = 90 + (2×2) + 3 = 97 LF. Round up to 100 LF for ordering.

  3. Count plug-in units per cabinet row. The power plan shows 12 cabinets in a row. Each cabinet requires one plug-in unit with a 60A breaker. Count = 12 EA. Add one spare plug-in unit per row as a common practice. Total plug-in units = 13 EA.

  4. Count end taps and tap boxes. The run has one end tap at the switchgear and one at the last cabinet. Each end tap requires a tap box. Count = 2 EA.

  5. Apply waste factors. Busway is ordered in 10-foot sections. For a 100 LF run, order 11 sections (110 LF) to allow for cutting and waste. Waste factor = 10%. Plug-in units have negligible waste; order 13 EA.

  6. Include supports and hangers. Supports are spaced at 5 feet on center. Number of supports = (100 LF ÷ 5) + 1 = 21 EA. Each support includes a threaded rod, channel, and hardware.

  7. Add bonding jumpers. Code requires bonding jumpers at each busway section joint. Number of joints = 11 sections - 1 = 10 joints. Bonding jumpers = 10 EA.

  8. Summarize the takeoff. The final line items are: busway 4000A, 100 LF; plug-in units 60A, 13 EA; end taps, 2 EA; supports, 21 EA; bonding jumpers, 10 EA. All quantities are tied to sheet E-301 and section 26 25 00.

Additional check: busway ampacity and voltage drop. The specified busway is 4000A, 480V, 3-phase, 4-wire. Verify that the plug-in units match the busway rating. Each 60A plug-in unit requires a circuit breaker and a tap-off box. The total connected load per row is 12 cabinets × 60A = 720A, which is within the 4000A busway capacity. Voltage drop over 100 LF at 720A is negligible for this length, but confirm with the engineer if the run exceeds 150 LF.

Additional check: seismic bracing. If the project is in a seismic zone, add bracing for the busway supports. This may include sway braces and additional anchors. Check the structural drawings for requirements. For a typical installation, add 10% to the support count for bracing. In this example, add 2 supports for bracing, bringing the total to 23 EA.

Additional check: firestop and penetration. Where the busway penetrates a fire-rated wall, include firestop materials and labor. Count each penetration as one firestop assembly. In this run, there is one penetration at the electrical room wall. Add one firestop assembly.

Additional check: labeling and identification. Include labels for each busway section and plug-in unit. Labels must comply with NFPA 70E and the project spec. Count one label per section and one per plug-in unit. Total labels = 11 + 13 = 24 EA.

Additional check: testing and commissioning. Include testing of the busway and plug-in units. This includes insulation resistance tests and torque checks. List as a separate line item for the electrical contractor.

Summary of additional items: seismic bracing (2 EA), firestop (1 EA), labels (24 EA), testing (1 LS). These items are often missed in a simple linear takeoff but are required for a complete estimate. Always cross-check with the specifications and applicable codes.

Cost drivers

What drives data center construction estimating cost

Relative impact on a typical estimate for this trade, based on estimator judgment. Select a bar for details.

Scale: 1 = minor, 5 = major relative impact. Estimator judgment, not measured data.
Relative impact 5 / 5

Redundancy tier

N, N+1, 2N, and 2N+1 change equipment counts, paralleling gear, and busway routing. A 2N electrical topology roughly doubles switchgear and UPS counts versus N+1. We take off the tier shown on the drawings, not a default. The tier also affects the size of the electrical rooms and the amount of busway and cable tray required.

Redundancy tier

N, N+1, 2N, and 2N+1 change equipment counts, paralleling gear, and busway routing. A 2N electrical topology roughly doubles switchgear and UPS counts versus N+1. We take off the tier shown on the drawings, not a default. The tier also affects the size of the electrical rooms and the amount of busway and cable tray required.

Cooling architecture

Air-cooled CRAH, chilled water, direct-to-chip liquid, and immersion cooling each have different piping, pumping, and CDU requirements. Liquid cooling adds facility water loops and leak detection that air-cooled designs do not have. We measure the specific system shown on the mechanical schematics, including pumps, heat exchangers, and water treatment.

Power distribution

Overhead busway is faster to install but has higher material cost than cable-and-conduit. Underfloor busway reduces overhead congestion but requires more raised floor coordination. The choice changes both Division 26 and Division 08 quantities. We take off the distribution method shown on the drawings and note any transitions between overhead and underfloor.

Generator fuel system

Diesel, natural gas, and dual-fuel generators have different day tank, piping, and permitting requirements. Diesel needs fuel polishing and secondary containment; natural gas needs larger piping and gas detection. We include the fuel system scope from the mechanical and electrical drawings, and note any items that require coordination with the utility.

Phasing and commissioning

Phased cutovers require temporary power and temporary cooling, plus integrated systems testing. Load bank testing and breaker coordination studies are often separate scopes that need to be priced. We identify these in the takeoff as separate line items so you can decide whether to include them in your bid or exclude them.

Site conditions

Seismic zones, high water tables, and corrosive soils affect foundation design, grounding, and underground utilities. For example, seismic bracing for busway and cable tray adds material and labor. We adjust quantities based on the site location and note any special requirements from the geotechnical report or local codes.

Code and standard requirements

NFPA 70 (NEC), NFPA 75, and local amendments dictate grounding, bonding, and fire suppression. For instance, NFPA 75 requires specific fire protection for IT equipment areas. We include code-driven items such as battery room ventilation and spill containment. Always confirm the adopted code edition with the local building department.

Scope gaps

Common scope gaps we catch in data center bid leveling

These items are routinely missed because they fall between disciplines or are shown on a sheet nobody prices.

  • Busway plug-in units counted per run instead of per cabinet row. We count them per row from the power plan and cross-check against the panel schedule.
  • Battery racks, spill containment, and ventilation required by NFPA 1 and IFC Chapter 52. These are rarely on the electrical plans; we add them from the spec and confirm the adopted edition with the local building department.
  • Generator exhaust stacks, silencers, and remote radiators. These show up on mechanical or architectural sheets, not the electrical single-line, so they are missed by electrical estimators.
  • Duct bank encasement, manholes, and conduit stub-ups for the utility feed. The route is on the site plan, but the quantities are often left for the civil contractor.
  • CRAH condensate drains, humidifier piping, and floor sinks. Shown on mechanical plans but not in the piping isometrics, so they are left out of the pipe takeoff.
  • Raised floor cutouts, ramps, and equipment ramps at the white space boundary. These are detailed on architectural sheets and missed when the floor is priced by the square foot.
  • Cable tray bonding jumpers every 50–100 LF and intersystem bonding terminations. Required by code but not shown as a line item on the drawings.
  • Grounding and bonding for UPS and switchgear, including ground rings and counterpoise. Often shown on the electrical site plan but missed in the building takeoff.
  • Fire suppression for battery rooms and IT spaces, such as clean-agent or pre-action systems. These are on the fire protection drawings but not in the electrical or mechanical takeoff.

Power train and cooling architecture comparison

The choice of power and cooling architecture drives both material quantities and installation labor. Use this table to compare common options.

ArchitectureKey takeoff itemsRedundancy impactCost and schedule note
Static UPS with VRLA batteriesUPS modules, battery strings, racks, spill containment, ventilationN+1 adds one module per group; 2N doubles modulesLower first cost, shorter battery life, higher maintenance
Rotary UPS with flywheelUPS modules, flywheel assemblies, concrete pads, coolingN+1 adds one flywheel unit per groupHigher first cost, longer life, lower battery replacement
Diesel generatorsGenerator sets, day tanks, fuel piping, exhaust stacks, silencersN+1 adds one generator; 2N doubles setsFuel polishing, containment, and permitting add cost
Natural gas generatorsGenerator sets, gas piping, gas detection, larger exhaustN+1 adds one generator; 2N doubles setsLower fuel storage cost, but gas piping and detection add scope
Air-cooled CRAHCRAH units, refrigerant piping, condensate drains, economizerN+1 adds one unit per rowLower piping cost, higher electrical load for compressors
Chilled water CRAHCRAH units, chilled water piping, pumps, cooling towersN+1 adds one unit and one pumpHigher piping and plant cost, better efficiency at scale
Direct-to-chip liquid coolingCDUs, facility water loops, leak detection, manifoldsN+1 adds one CDU per loopHigher first cost, supports high-density racks
Immersion coolingImmersion tanks, CDUs, fluid handling, structural supportsN+1 adds one tank per groupSpecialty fluids and structural loads drive cost
Codes and standards

Codes and standards that affect data center takeoff

Model codes

Data centers are governed by the IBC for building classification, the IECC for energy efficiency, and the NEC (NFPA 70) for electrical installations. NFPA 75 covers fire protection for IT equipment areas, and NFPA 76 addresses telecommunications facilities. The adopted editions vary by state and city. For example, the NEC edition affects grounding, bonding, and arc-flash requirements, which change quantities for ground rings and labeling. The IECC may require economizers or specific fan power limits, impacting mechanical equipment counts. Always confirm the adopted code edition with the local building department.

Industry standards

Estimators should reference ACI 318 for concrete equipment pads, ASTM standards for structural steel (AISC) and raised access floor (CISCA), SMACNA for ductwork, and NFPA 110 for emergency power systems. These standards dictate material specifications and testing requirements. For instance, AISC certification may be required for structural steel, and SMACNA duct construction affects sheet metal quantities. Battery installations must follow IEEE standards for ventilation and spill containment. These standards are often referenced in the spec book and change the material takeoff.

Specification sections

Key CSI sections for data centers include Division 26 (26 24 00 switchgear, 26 25 00 busway, 26 32 00 generators, 26 33 00 UPS), Division 23 (23 63 00 CRAH units), Division 27 (27 11 00 data center telecom rooms), Division 21 (21 13 00 clean agent), and Division 08 (08 34 00 raised access floor). Within each section, the spec dictates whether equipment is specified by model number or performance, which affects pricing. For example, a performance spec for UPS may allow multiple manufacturers, while a proprietary spec limits competition. The spec also lists accessories, testing, and commissioning requirements that add cost.

Local amendments

Local jurisdictions often amend model codes for seismic bracing, fire suppression, and environmental regulations. For example, California's Title 24 energy code has stricter economizer requirements than the IECC, and seismic zones require bracing for cable tray and busway. Some cities require additional permitting for diesel generators, including air quality permits. These amendments can add significant scope to the takeoff. Always confirm the adopted code edition and local amendments with the local building department before finalizing your estimate.

Who we provide estimates for

Who uses this data center estimate for contractors

General contractors

You need division-level quantities to build your bid and compare subcontractor quotes. The takeoff lets you see whether an electrical quote is low because it missed busway plugs or battery racks.

Electrical subcontractors

You price Division 26 and need accurate counts of switchgear, UPS, and busway. We give you the equipment list and the distribution quantities separately so you can apply your own labor rates.

Mechanical subcontractors

You price CRAH units, chilled water piping, and economizers. The takeoff separates equipment from piping so you can verify the cooling load and pipe sizes against your own estimate.

Developers and owner's reps

You need a budget before design is complete. Our takeoff follows the single-line and schematics, so you can see how changes in redundancy tier or cooling architecture affect cost.

Where we provide estimates

Data Center Estimating in 20 states

Pricing is adjusted to the project ZIP code. Select a highlighted state to see the cities we cover there.

States we coverSelected
TX

Data Center Estimating in Texas

Nation's largest construction market; Sun Belt population growth, data centers, semiconductor plants, and single-family home building.

Texas estimating services
Property types

Data center project types and what changes in the takeoff

The takeoff scope shifts with the facility type because redundancy, cooling, and power density vary. Here is how we adjust for common data center projects.

Hyperscale data center

Large white space, high busway counts, 2N electrical topology, and liquid cooling loops.

Watch for: Busway plug-in units per cabinet row, CDU counts, and facility water piping.

Colocation data center

Multi-tenant suites with separate metering, diverse utility feeds, and modular UPS.

Watch for: Metering equipment, suite separation walls, and busway tap boxes per tenant.

Enterprise data center

Smaller footprint, N+1 redundancy, air-cooled CRAH units, and overhead cable tray.

Watch for: CRAH condensate drains, economizer piping, and generator fuel polishing.

Edge data center

Prefabricated modules, minimal shell, and often no raised floor.

Watch for: Modular skid connections, outdoor-rated equipment, and site utility stub-ups.

Retrofit or expansion

Tie-ins to existing switchgear, temporary power, and phased cutovers.

Watch for: Temporary cooling, load bank testing, and breaker coordination studies.

Deliverables

What you receive

  • Excel workbook organized by CSI MasterFormat division, with each line tied to a plan sheet reference.
  • PDF mark-up set showing where each quantity was measured on the drawings.
  • Equipment counts separated from distribution quantities for Division 26 and Division 23.
  • Busway and cable tray runs measured by length, with plug-in units counted per cabinet row.
  • Raised access floor quantities by square foot, including cutouts and ramps.
  • Generator and UPS counts with battery racks and spill containment included as separate lines.
  • Turnaround in 24–48 hours for most projects, with rush available on request.
Checklist

Pre-bid checklist for data center estimates

  • Verify redundancy tier (N, N+1, 2N) from the single-line.
  • Count UPS modules and battery strings per schedule.
  • Measure busway runs and count plug-in units per cabinet row.
  • Confirm generator fuel type and include day tanks and piping.
  • Trace chilled water loops and count CRAH units.
  • Check for economizer piping and water treatment equipment.
  • Measure raised access floor area and add cutouts and ramps.
  • Count cable tray runs and include bonding jumpers.
  • Review fire suppression for battery rooms and IT spaces.
  • Identify temporary power and cooling for phased cutovers.
  • List testing and commissioning scopes (IST, load bank).
  • Confirm adopted code editions and local amendments.
Client reviews

What clients say about Scope Precision Estimate

10 client reviews
DT
Daniel ThompsonCommercial Contractor

Very impressed with the accuracy and turnaround time. Their estimate gave us a clear picture of material and labor costs before starting the project.

SH
Steven HarrisCommercial Builder

The quality of the estimate exceeded our expectations. Their detailed breakdown of labor, materials, and project costs gave us confidence in our bid.

MA
Michael AndersonGeneral Contractor

The cost estimate was detailed, accurate, and easy to understand. It helped us prepare our bid confidently and stay competitive without overlooking important costs.

AW
Andrew WilsonGeneral Contractor

Highly recommended for construction cost estimating. The quantities were accurate, the pricing was well organized, and the final report was easy to review.

MD
Matthew DavisConstruction Manager

Their construction estimate was thorough and professionally prepared. It made our budgeting process much easier and helped us identify potential cost issues early.

CM
Christopher MillerResidential Builder

We needed a quick and accurate construction cost estimate, and they delivered exactly what we needed. Great attention to detail and a very responsive team.

FAQ

Data Center Estimating questions

What is the typical turnaround time for a data center takeoff?

We deliver most data center takeoffs in 24–48 hours after receiving complete plans and specs. Rush service is available if you have a bid deadline. The turnaround depends on the completeness of the documents and the complexity of the systems. If we need to wait for missing information, we will notify you immediately. Our team works in parallel on electrical and mechanical scopes to meet the deadline.

How do you handle busway plug-in units in the takeoff?

We count plug-in units per cabinet row, not per busway run. This matches how they are purchased and installed. We cross-check the count against the power plan and panel schedule. Each plug-in unit is listed as a separate line item with its amperage rating. We also include end taps and tap boxes as distinct items. This prevents undercounting when a run serves multiple rows.

What information do you need to estimate a UPS system?

We need the electrical single-line diagram showing UPS modules, battery strings, and bypass isolation. The UPS schedule gives kVA ratings, quantity, and runtime requirements. We also need the spec section 26 33 00 for battery type, racks, and spill containment. If the UPS is owner-furnished, we note that and exclude it from the takeoff. Without the single-line, we cannot separate UPS equipment from distribution.

Do you include generator fuel systems in the takeoff?

Yes, we include day tanks, fuel piping, leak detection, and secondary containment when shown or specified. Generator exhaust stacks, silencers, and remote radiators are also included if they appear on mechanical or architectural sheets. We note any items that require coordination with the utility or local permitting. Fuel polishing and testing are listed as separate scopes so you can decide whether to include them.

How do you account for cooling architecture differences?

We take off the specific cooling system shown on the mechanical schematics. For chilled water, we measure pipe, valves, pumps, and cooling towers. For air-cooled CRAH, we count units, refrigerant piping, and condensate drains. For liquid cooling, we include CDUs, facility water loops, and leak detection. We do not substitute a generic tonnage allowance. The takeoff reflects the actual design and its redundancy.

What is your approach to raised access floor takeoff?

We measure the raised access floor by the square foot of usable white space, not the building footprint. We add cutouts, ramps, and equipment ramps at the boundary. Perforated tile counts come from the airflow plan. We also note pedestal type and stringer requirements. This ensures the floor material and installation labor are accurately captured, including special details often missed in square-foot estimates.

Can you estimate a phased data center expansion?

Yes, we can separate the takeoff by phase if you provide the phasing plans. We identify temporary power and cooling requirements for cutovers. We also list testing and commissioning scopes, such as integrated systems testing and load bank testing, as separate line items. This helps you price each phase accurately and understand the cost impact of phasing.

What software do you use for data center takeoffs?

We use Bluebeam Revu for PDF markups, PlanSwift for quantity takeoff, and RSMeans data for ZIP-code-adjusted material and labor pricing. This combination allows us to measure accurately from your plans and apply current market rates. The final deliverable is an Excel workbook organized by CSI MasterFormat division, with a PDF mark-up set showing where each quantity was measured.

How do you handle code-driven items like battery room ventilation?

We include code-driven items such as battery room ventilation, spill containment, and fire suppression based on the spec and applicable codes. We reference NFPA 1, IFC Chapter 52, and NFPA 75. Because adopted editions vary, we confirm with the local building department when needed. These items are often missed because they are not on the electrical plans, so we add them from the spec.

What is the cost of your data center estimating service?

Our pricing is project-specific and depends on the scope, complexity, and turnaround time. We do not publish a starting price because each data center is unique. Contact us with your plans and we will provide a quote. We offer competitive rates for repeat clients and volume projects. The cost is typically a fraction of the value of accurate quantities.

Do you provide estimates for both shell-and-core and fit-out?

Yes, we can separate shell-and-core from fit-out scopes. This allows you to price phased delivery or compare different contract structures. We clearly label each line item with its scope. For example, structural steel and concrete slabs are typically shell-and-core, while UPS and CRAH units are fit-out. This separation helps you allocate costs correctly.

How do you ensure accuracy in your takeoffs?

Every takeoff is reviewed by a second estimator before delivery. We cross-check equipment counts between the single-line and schedules, and verify linear measurements against plan scales. We also maintain a checklist of common scope gaps, such as busway plug-in units and battery racks. If we find discrepancies, we note them as assumptions. This quality control process catches errors before they reach you.

Do you provide outsourced data center estimating for contractors who already have an in-house team?

Yes. Outsourced data center estimating works best when we take a defined bid package — Division 26 power, Division 23 cooling, or the full shell and core — and return a quantity takeoff with unit price columns your team can price directly. We work from IFC drawings, issue RFI questions on unclear scope, and deliver on-screen takeoff files in Bluebeam Revu, PlanSwift, or Excel so your estimator keeps control of the final number.

How does data center fit-out estimating differ from shell and core?

Shell and core covers the building envelope, structural slab, utility yard, and main electrical and mechanical rooms. Fit-out covers the white space: raised floor, busway drops, cabinet whips, CRAH units, hot aisle containment or cold aisle containment, BMS and EPMS points, and DCIM cabling. We take them off separately because the crew mix, labor productivity, and turnover sequence are different, and because fit-out often runs on a faster schedule with more long lead items.

Can you produce a data center electrical estimating takeoff separate from the mechanical scope?

Yes. We split electrical and mechanical into separate bid packages when you need them. The electrical takeoff covers Division 26 and Division 27: switchgear, UPS modules, busway with plug-in units, panelboards, feeders, grounding, and fiber optic backbone. The mechanical takeoff covers Division 23 and Division 21: chiller plant, CRAH units, pumps, piping, valves, and fire suppression. Each package carries its own unit price columns, labor hours, and escalation assumptions.

How does data center mechanical estimating differ from a tonnage allowance?

We take off the actual mechanical scope instead of a rule-of-thumb tonnage. That means chiller plant capacity and redundancy, chilled water piping sizes and runs, CRAH unit counts and locations, pumps, valves, economizer piping, and Division 23 HVAC ductwork and controls. We also check the design cooling load against the ASHRAE psychrometric assumptions shown on the mechanical schedules. The result is a mechanical takeoff your estimator can price line by line rather than a lump sum that hides the real cost drivers.

RH

Reviewed by Ryan H.

Senior Estimator, 15+ years in construction estimating and cost planning. is a Senior Estimator with more than 15 years of professional experience in construction estimating and cost planning.

  • Construction cost estimating
  • Quantity takeoffs
  • Material and labor cost analysis
  • Bid preparation and evaluation
  • Drawing and specification review
  • Project budgeting

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