A construction cost estimate is a line-item build-up of every CSI MasterFormat division in your project, priced with ZIP-code-adjusted material and labor rates. You need it when you are preparing a bid, validating a budget, or comparing a design option against a target cost. We take off quantities from your plan set, apply waste factors by material, and price the work using RSMeans data adjusted to the project ZIP code. The estimate arrives in Excel and PDF, organized by division, with marked-up plan sets showing exactly where each quantity came from.
- 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
If you already have a takeoff and only need pricing, our Quantity Takeoff Services page covers that scope. If you need the full estimate built from drawings, this page covers the whole-project deliverable. We work from architectural, structural, civil, MEP, and specification documents. Turnaround is 24–48 hours for most projects, with rush available. Every estimate includes a Division 01 general requirements section so you are not left guessing at supervision, temporary facilities, and permits. For projects that need a dedicated estimator embedded in your team, see our Dedicated Construction Estimator service.
If you are outsourcing estimating for the first time, our Outsource Estimating Services page explains how we integrate with your workflow. We also provide Construction Takeoff Services and Blueprint Takeoff & Estimating for clients who need quantities only or a full estimate from blueprints. To get started, send your plans and specs through our Get an estimate page.
What our construction cost estimating services include
We estimate all 50 MasterFormat divisions, but the divisions that carry the most cost on a typical building are concrete, masonry, metals, wood, thermal and moisture protection, openings, finishes, plumbing, HVAC, electrical, and earthwork. Each division is taken off by the unit that matches how it is bought and installed — cubic yards for concrete, tons for steel, square feet for gypsum board, linear feet for pipe and conduit. Pricing uses ZIP-code-adjusted material and labor rates so your estimate reflects the local market, not a national average.
Structural Takeoff
Concrete, masonry, steel, and wood quantities measured from structural sheets and priced by assembly.
CY · LF · SF · TONExterior Enclosure
Exterior wall assemblies, roofing, waterproofing, and fenestration quantities priced with ZIP-adjusted rates.
SF · LF · EAInterior Finishes
Partition types, ceiling systems, flooring, and painting quantities with waste factors applied by material.
SF · LF · EAMEP Rough-In
Plumbing, mechanical, and electrical rough-in and fixture counts from MEP plans and specifications.
LF · EA · TONSitework
Earthwork, backfill, and haul-off quantities from civil and site plans, including cut and fill calculations.
CY · SF · LFGeneral Requirements
Division 01 items including supervision, temporary facilities, permits, and final cleaning.
LS · MO · EAAllowances & Contingency
Allowances and unit-price items carried from the specification, plus escalation and contingency lines.
LS · % · EAMarked-Up Plans
Plan sets marked up to show quantity origins for every line item, delivered with Excel and PDF.
SHEET · EAWhat every construction cost estimating takeoff includes
- Full quantity takeoff from architectural, structural, civil, and MEP sheets
- Division 01 general requirements — supervision, temporary facilities, permits, final cleaning
- Concrete, masonry, steel, wood, and finishes priced by assembly
- MEP rough-in and fixture counts from plumbing, mechanical, and electrical plans
- Earthwork, backfill, and haul-off quantities from civil and site plans
- Waste factors applied by material — typical ranges, adjusted for complexity
- ZIP-code-adjusted material and labor pricing using RSMeans data
- Excel and PDF deliverables organized by CSI MasterFormat division
- Marked-up plan sets showing quantity origins for every line item
- Allowances and unit-price items carried from the specification
- Escalation and contingency lines for bid date versus construction start
- Delivery in 24–48 hours for most projects, rush available
How we build a whole-project building cost estimate
- Plan and spec intakeWe log every sheet in your set — architectural, structural, civil, plumbing, mechanical, electrical, and specifications. We check for missing sheets, addenda, and alternates. If a sheet is missing, we flag it before starting so you can send it or confirm the omission is intentional. We also note the sheet index and any referenced details that are not included, so you can supply them before takeoff begins.
- Division-by-division takeoffEach division is taken off by the unit it is installed in. Concrete is measured in CY from footing and slab dimensions, with formwork contact area in SF. Steel is weighed in tons from the member schedule. Gypsum board is measured in SF by assembly type and finish level. We mark up the plans as we go, using Bluebeam Revu and PlanSwift to trace and quantify each line item.
- Waste and quantity adjustmentsWe apply waste factors by material — typical ranges for concrete, masonry, gypsum board, roofing, and tile. We adjust for complexity: a building with many corners and penetrations carries more waste than a simple rectangle. Waste is shown as a separate line so you can see the base quantity and the adjustment. For example, a 5% waste factor on 18,400 SF of slab-on-grade adds 920 SF to the order quantity.
- ZIP-adjusted pricingMaterial and labor rates are adjusted to the project ZIP code using RSMeans data. We price the labor hours by trade and apply the local wage index. Sales tax, freight, and delivery are added where they apply. Long-lead materials are flagged with a note on escalation risk. For example, if the project is in ZIP 78701, we use the Austin, TX cost index rather than a national average.
- Assembling the estimateLine items are organized by CSI MasterFormat division in Excel. Each row carries the quantity, unit, unit cost, and extended cost. Division 01 general requirements are built from the project duration and site conditions. Allowances and unit-price items from the specification are carried as separate lines. We also include a summary sheet with total cost per division and a cost per square foot for benchmarking.
- Review and deliveryWe run a scope-gap check against the specification and drawings — firestopping, roof accessories, structural connections, and commissioning are common misses. The final estimate is delivered in Excel and PDF with marked-up plan sets. Turnaround is 24–48 hours for most projects, with rush available. We also provide a brief written summary of assumptions and qualifications so you know what is included and what is not.
What we need from you to start
- Complete plan setArchitectural, structural, civil, plumbing, mechanical, and electrical sheets. Missing sheets delay the estimate or force assumptions.
- SpecificationsProject manual or spec book. We need it for Division 01 requirements, allowances, unit-price items, and material standards.
- Bid date and construction startUsed for escalation and contingency lines. A bid date six months before construction start carries more escalation risk.
- Project ZIP codeDrives ZIP-code-adjusted material and labor pricing. The ZIP code must be the construction site, not your office.
- Addenda and alternatesAny addenda issued after the base bid documents. Alternates are priced as separate line items so you can compare.
- Site conditionsGeotechnical report, grading plan, and utility information. These drive earthwork, backfill, and haul-off quantities.
- Delivery formatExcel, PDF, or both. We deliver both by default, organized by CSI MasterFormat division with marked-up plans.
Sample takeoff format — illustrative quantities
This is the format you receive: CSI section, line item with spec detail, quantity, unit, and the sheet reference where we measured it.
| Section | Line item | Qty | Unit | Ref. |
|---|---|---|---|---|
| 03 30 00 | Cast-in-place concrete, continuous footing 24" × 12" | 412 | LF | S-101 |
| 03 20 00 | Reinforcing steel, #5 bars, footings and slab | 18.6 | TON | S-101 |
| 04 20 00 | CMU wall, 8" normal weight, reinforced | 9,800 | SF | A-201 |
| 05 12 00 | Structural steel, W-shape columns and beams | 42.3 | TON | S-301 |
| 06 10 00 | Rough carpentry, 2× blocking at openings | 1,240 | LF | A-501 |
| 07 21 00 | Thermal insulation, R-13 batt in metal stud walls | 12,400 | SF | A-401 |
| 08 11 00 | Hollow metal door and frame, 3'-0" × 7'-0", 20 min | 34 | EA | A-601 |
| 09 21 16 | Gypsum board assembly, 5/8" Type X, one layer | 28,600 | SF | A-501 |
| 22 11 16 | Domestic water piping, Type L copper, 1" | 1,850 | LF | P-101 |
| 26 05 19 | Conductors and cables, #12 THHN, branch circuits | 14,200 | LF | E-201 |
Units of measure we take off and how we measure them
Each line item is measured in the unit it is bought, sold, and installed in. Here are the units you will see most often in a whole-project estimate.
| Item | Unit | How it's measured |
|---|---|---|
| Cast-in-place concrete | CY | Volume from footing, slab, and wall dimensions — length × width × depth ÷ 27 |
| Formwork contact area | SF | Surface area of concrete in contact with formwork, measured from structural sections |
| Reinforcing steel | TON | Weight by bar size and total length, including laps and hooks per ACI detailing |
| Structural steel | TON | Weight by member type from the steel schedule, plus connection allowance |
| Unit masonry | SF | Wall face area by thickness and reinforcement, measured from elevation and plan |
| Gypsum board assemblies | SF | Board area by type, layer count, and finish level, from reflected ceiling and partition plans |
| Thermal insulation | SF | Area by R-value and assembly, from wall and roof sections |
| Joint sealants | LF | Joint length by width and depth, from details and joint schedule |
| Hollow metal doors and frames | EA | Count by size, rating, and hardware set, from door schedule |
| Aluminum windows and glazing | SF | Glass area by type mark, from window schedule and elevations |
| Domestic water piping | LF | Pipe length by material and diameter, from plumbing riser and floor plans |
| Conductors and cables | LF | Wire length by size and circuit, from electrical panel schedules and home runs |
| HVAC ductwork | LB | Duct weight by gauge and size, from mechanical plans and duct schedules |
| Excavation and fill | CY | Volume from cut/fill calculations on civil grading plans |
Worked example: slab-on-grade takeoff for a small commercial building
This example uses illustrative dimensions for a 60 ft × 40 ft slab-on-grade, 5 inches thick, with a 12-inch × 12-inch perimeter grade beam. No vapor barrier or reinforcement is included here.
Step 1 — Slab area.
- Building footprint: 60 ft × 40 ft = 2,400 SF.
- No deductions for small penetrations; typical practice is to measure the full slab area.
Step 2 — Slab volume.
- Thickness: 5 in ÷ 12 = 0.4167 ft.
- Volume: 2,400 SF × 0.4167 ft = 1,000 CF.
- Convert to cubic yards: 1,000 CF ÷ 27 = 37.04 CY.
Step 3 — Grade beam volume.
- Perimeter length: 2 × (60 + 40) = 200 LF.
- Cross-section: 12 in × 12 in = 1 ft × 1 ft = 1 SF.
- Volume: 200 LF × 1 SF = 200 CF.
- Convert to CY: 200 CF ÷ 27 = 7.41 CY.
Step 4 — Total concrete volume.
- Slab: 37.04 CY + Grade beam: 7.41 CY = 44.45 CY.
Step 5 — Apply waste factor.
- Typical waste for slab-on-grade is 5–10%. Use 5% for a simple rectangular pour.
- Waste: 44.45 CY × 0.05 = 2.22 CY.
- Order quantity: 44.45 + 2.22 = 46.67 CY. Round up to 47 CY.
Step 6 — Formwork contact area (grade beam).
- Exterior face: 200 LF × 1 ft = 200 SF.
- Interior face: 200 LF × 1 ft = 200 SF.
- Total formwork: 400 SF. No waste factor applied to formwork; it is reused.
Step 7 — Vapor barrier (if specified).
- Area: 2,400 SF. Lap 6 inches at joints and turn up at edges.
- Typical waste: 10% for laps and cuts. Order: 2,400 × 1.10 = 2,640 SF.
Step 8 — Reinforcing steel (if specified).
- Assume #4 bars at 18 inches on center each way for slab.
- Bars in 60-ft direction: (40 ft × 12 in/ft) ÷ 18 in = 26.67, round to 27 bars. Each bar length: 60 ft + lap. With 2-ft lap: 62 ft. Total length: 27 × 62 = 1,674 LF.
- Bars in 40-ft direction: (60 ft × 12) ÷ 18 = 40 bars. Each bar: 40 ft + 2 ft lap = 42 ft. Total: 40 × 42 = 1,680 LF.
- Total slab rebar: 1,674 + 1,680 = 3,354 LF.
- Grade beam rebar: assume 4 continuous #5 bars. Total length: 4 × 200 LF = 800 LF. Add 10% for laps and hooks: 880 LF.
- Convert to tons: #4 bar weighs 0.668 lb/ft; #5 bar weighs 1.043 lb/ft.
- Slab: 3,354 LF × 0.668 lb/ft = 2,240 lb.
- Grade beam: 880 LF × 1.043 lb/ft = 918 lb.
- Total: 3,158 lb ÷ 2,000 = 1.58 tons. Add 5% waste: 1.66 tons.
These steps show how we build each line item in your estimate. Dimensions are illustrative; your project will use actual plan dimensions and specification requirements.
What drives the cost of a commercial construction estimating job
Relative impact on a typical estimate for this trade, based on estimator judgment. Select a bar for details.
Structural frame
Steel, concrete, and wood frames price differently per ton and per square foot. A steel frame carries mill order minimums and connection design; a concrete frame carries formwork and rebar labor. We price the frame from the member schedule and apply the correct labor crew.
Steel, concrete, and wood frames price differently per ton and per square foot. A steel frame carries mill order minimums and connection design; a concrete frame carries formwork and rebar labor. We price the frame from the member schedule and apply the correct labor crew.
CMU, metal stud with sheathing, and precast concrete have different unit costs and different waste factors. CMU is measured in SF of wall area; metal stud with sheathing adds insulation, sheathing, and finish lines. The assembly choice changes the Division 04, 05, 06, and 07 totals.
TPO, modified bitumen, and metal roofing price by square (100 SF) but carry different accessory requirements. TPO needs edge metal and fasteners; modified bitumen needs multiple plies and flashing; metal roofing needs structural support and clips. Accessories are a common miss.
Gypsum board partitions are measured in SF by assembly type and finish level. A Level 5 finish costs more than Level 3. CMU partitions add Division 04 cost but reduce Division 09 cost. We price the partition schedule as drawn, not as assumed.
Plumbing, HVAC, and electrical costs scale with fixture count, duct weight, and circuit length. A building with a central plant carries more Division 23 cost than a distributed system. We take off from the riser diagrams and panel schedules, not from rules of thumb.
Earthwork, backfill, and haul-off quantities depend on the geotechnical report and grading plan. Rock excavation, unsuitable soils, and dewatering are priced as separate lines. A site with poor soils can add significant Division 31 cost.
A taller building increases structural cost per square foot due to wind and seismic loads, and adds cost for scaffolding, hoisting, and vertical MEP runs. A larger footprint increases roof area and site work. We adjust labor rates for height and measure the impact on Division 03, 05, and 14.
A building specified to a higher standard — stone flooring, custom millwork, high-end fixtures — carries higher material and labor costs. We price the finish schedule as written, not as a typical building. Allowances for owner-selected finishes are carried separately so you can see the base estimate clearly.
Scope gaps we catch before they cost you
These are the items that most often fall through the cracks between divisions. We check for them on every estimate.
- General conditions and Division 01 requirements are frequently omitted from contractor estimates. They hide in the specification under temporary facilities, supervision, and final cleaning. We build them from the project duration and site conditions.
- Site work beyond the building pad — clearing, excavation, backfill, and haul-off — is often left out when the estimate is based only on architectural sheets. We measure it from the civil grading plan and geotechnical report.
- Firestopping and fire-rated assembly components at rated walls and floor penetrations are a common miss. They hide in the specification under 07 84 00 and in the wall type schedule. We count penetrations by rated assembly.
- Roofing accessories — flashing, edge metal, curbs, and roof drains — are often priced separately from the membrane. They hide in the roof plan and details. We measure them by linear feet and each, not as a percentage.
- Structural connections — anchor bolts, embeds, shear studs, and miscellaneous steel — are frequently excluded from the steel package. They hide in the structural details and general notes. We add them as a separate line under 05 50 00.
- Testing, adjusting, and balancing (23 05 93) and commissioning are often omitted from mechanical estimates. They hide in the specification under Division 23 and 01 91 00. We carry them as separate lines so you can decide whether to include them.
- Temporary heating, cooling, and ventilation during construction are often overlooked. They appear in Division 01 under temporary facilities. We estimate them based on project duration and climate zone.
- Final cleaning and waste removal are frequently excluded from Division 01. They include dumpster rental, haul-off fees, and labor. We add them as a line item under 01 74 00.
- Signage, fire extinguishers, and toilet accessories are often left out of the finishes package. They are specified in Division 10 and Division 12. We count them from the floor plans and specifications.
Assembly comparison: what drives whole-project cost
The assemblies you choose set the cost floor. This table compares common options by unit, typical waste factor, and the pricing inputs each requires.
| Assembly | Unit | Typical waste factor | Pricing inputs |
|---|---|---|---|
| Structural steel frame | TON | 2–5% for connections and misc. steel | Member schedule, connection design, mill order minimums, erection labor |
| Cast-in-place concrete frame | CY | 5–10% for slabs, 2–5% for footings | Formwork contact area, rebar tonnage, concrete pump, finishing labor |
| Wood frame (light commercial) | SF | 5–10% for framing lumber | Stud spacing, sheathing, connectors, fire-retardant treatment if required |
| CMU exterior wall | SF | 3–5% for block and mortar | Wall thickness, reinforcement, grout, scaffolding, mason labor |
| Metal stud with sheathing | SF | 5–10% for sheathing and insulation | Stud gauge, sheathing type, insulation R-value, finish system |
| TPO roofing | SF | 5–10% for membrane and accessories | Membrane thickness, attachment method, edge metal, flashing, insulation |
| Modified bitumen roofing | SF | 10–15% for multiple plies | Ply count, flashing, base sheet, surfacing, roof drains |
| Gypsum board partition | SF | 10–15% for board and finish | Board type, layer count, finish level, framing, insulation, acoustical sealant |
| CMU interior partition | SF | 3–5% for block and mortar | Wall thickness, reinforcement, grout, finish (paint or veneer) |
Codes, standards, and spec sections that affect quantities and cost
Model codes
Model code editions drive measurable quantity changes in a whole-project estimate, so we tag each line to the code basis you provide. IBC Chapter 7 and Chapter 10 set fire-resistance ratings and egress widths that change gypsum board layers in Division 09 and door hardware in Division 08. IRC Tables R402 and R602 govern wall framing and stud spacing in Division 06. IECC envelope and lighting provisions add insulation thickness and controls in Divisions 07, 08 and 26. NEC Chapter 3 governs conduit fill and conductor sizing in Division 26; IPC or UPC venting and NFPA 13 sprinkler density affect Divisions 22 and 21. Confirm the adopted edition with the local building department before pricing.
Industry standards
Standards convert design intent into countable units. ACI 318 sets rebar development lengths and lap splices, which change tonnage in Division 03. AISC 360 governs connection design and bolt counts in Division 05. AWC NDS spans and hangers drive joist and hardware counts in Division 06. ASTM C754 and GA-216 set gypsum board fastener spacing and control joints, changing screw and joint compound quantities in Division 09. SMACNA duct construction standards set gauge and reinforcement, moving pounds of sheet metal in Division 23. ASCE 7 seismic and wind provisions add bracing and hold-downs across Divisions 05 and 06.
Specification sections
We read the specification before the takeoff, because clauses move price faster than plans. Section 01 91 00 commissioning adds testing labor and documentation. 07 84 00 firestopping adds listed assemblies by penetration type. 09 21 16 gypsum board assemblies fixes layer count, board type and finish level, which sets square footage and finishing labor. 23 05 93 testing, adjusting and balancing adds TAB labor to Division 23. 03 30 00 cast-in-place concrete governs admixtures and curing, and 05 12 00 structural steel governs shop priming and connection type. Substitution and allowance clauses in Division 01 change the basis of the number.
Local amendments
Adopted editions lag the model codes and every jurisdiction amends them. A state may still enforce an older IBC with its own snow, seismic or wind maps, and coastal or high-wind counties add product approvals that change Division 06 hardware and Division 07 underlayment. Fire districts amend NFPA 13 for sprinkler density and NFPA 72 for alarm coverage. Energy amendments change IECC envelope values, moving insulation and glazing quantities. Send us the project address and we apply ZIP-code-adjusted pricing, but you must confirm the adopted edition and amendments with the local building department before relying on any line.
Who uses our construction estimating company output
General contractors
You need a complete estimate to submit a hard bid or validate a budget. Our division-by-division format lets you check your own numbers or fill gaps in your takeoff. The marked-up plans show where every quantity came from.
Subcontractors
You bid one or two divisions and need the rest of the project priced to understand the total. Our estimate gives you the full picture so you can see how your scope fits and where the general conditions sit.
Developers
You are comparing sites, designs, or pro formas. Our estimate gives you a ZIP-adjusted cost per division so you can test feasibility before committing to design fees. Escalation and contingency lines are shown separately.
Architects
You need a cost check at design milestones to keep the project on budget. Our estimate is organized by CSI division so you can map costs back to your drawings and specifications without re-keying data.
Owners
You are validating a contractor's bid or building a capital budget. Our second-opinion estimate highlights scope gaps and pricing outliers so you can ask informed questions before award.