BIM Estimating Services (5D)

We accept native Revit (.rvt) and Navisworks (.nwd, .nwc) files. If you have IFC or other formats, we can often import them, but native files give the most reliable quantities. We also ask for 2D PDFs or DWGs for cross-checking. If your model is federated in Navisworks, send the combined file; otherwise, send each trade model and we will federate. For best results, include the latest architectural, structural, and MEP models, plus the specification book. If you have a point cloud or laser scan, we can incorporate it for existing conditions. We confirm model completeness and note any missing elements before starting.

We document every missing element and either calculate it from drawings or apply a typical allowance. For example, if rebar is not modeled, we calculate it from concrete volumes using typical reinforcement ratios. If connection plates are missing, we add a percentage allowance. We list all assumptions in the backup so you can adjust them. For MEP, if hangers and supports are not modeled, we apply a per-foot or per-unit allowance based on typical spacing. We also check for missing firestopping, roof curbs, and equipment pads. Each allowance is clearly labeled in the estimate, and we recommend verifying with trade partners before finalizing bids.

Yes. If you are a subcontractor and only need your scope, we can filter the model to your trade and extract only those quantities. We price them with your labor rates if provided, or with ZIP-adjusted RSMeans rates. The deliverable is a trade-specific estimate with the same level of detail. For example, a mechanical contractor can receive ductwork quantities by size and length, pipe by diameter and material, and equipment counts. We also provide a marked-up model view or PDF showing where quantities were taken. This helps you verify counts and ensure nothing is missed in your bid.

Most projects take 24–48 hours from receipt of a complete model and drawings. Larger or more complex projects may take longer. Rush service is available for time-critical bids. We confirm turnaround after reviewing your files. Factors that affect timing include model size, number of disciplines, level of detail, and whether we need to federate multiple models. If your model is well-organized and includes all necessary elements, we can often deliver within 24 hours. For projects requiring extensive validation or missing details, we will provide a revised schedule. We keep you informed of progress and any issues that may affect delivery.

We validate extracted quantities against the model's own schedules and against the 2D drawings. We run clash detection to prevent double-counting. We deduct openings and penetrations. We also cross-check counts against panel schedules, door schedules, and equipment lists. Any discrepancy is flagged and resolved with you. For structural elements, we compare model volumes to calculated volumes from dimensions. For MEP, we check pipe and duct lengths against riser diagrams and floor plans. We also review the model for common errors such as overlapping elements, incorrect levels, or missing elements. Our goal is to provide quantities you can trust for bidding and procurement.

Yes. If you provide a project schedule in P6, MS Project, or Excel, we can map costs to activities or model elements. This gives you a 5D model for cash-flow analysis. If you do not have a schedule, we can provide costs organized by CSI division and level, which you can load into your own schedule. We can also map costs to a Work Breakdown Structure (WBS) or to specific model elements using unique IDs. This allows you to track costs over time and compare planned versus actual. For owners and developers, this supports draw requests and financial reporting. We can format the output to match your existing schedule of values.

LOD 300 models give reliable quantities for major elements. For missing details like connections, hangers, or firestopping, we add allowances based on typical percentages. We document each allowance. The estimate remains accurate for budgeting, but you should review the allowances with your trade partners. For example, if steel connections are not modeled, we add a percentage of steel tonnage for connection material and bolts. If duct hangers are not modeled, we add a per-foot allowance. We also note where LOD 300 may not capture changes in elevation or complex geometry. In some cases, we may recommend upgrading the model to LOD 350 for better accuracy in specific areas.

Yes. If both alternates are modeled, we extract quantities for each. If only one is modeled, we can model the alternate from drawings or apply parametric adjustments. We price both and present a comparison, including cost and schedule impact. This supports value engineering and decision-making. For example, we can compare a steel frame versus a concrete frame, or TPO versus modified bitumen roofing. We provide a side-by-side table showing quantities, unit costs, and totals. We also note any differences in schedule, such as curing time for concrete or weather sensitivity for roofing. This helps you make informed choices early in the design phase.

We use RSMeans data adjusted for your ZIP code. We separate labor and material costs so you can adjust for union vs. open shop. We add waste factors by material and apply sales tax where applicable. If you have historical rates, we can use those instead. All rates and assumptions are documented. For labor, we consider crew composition, productivity, and site conditions. For materials, we use current market prices and note any volatility. We also include equipment costs where applicable, such as cranes or pumps. Our estimates are transparent, so you can see exactly how each line item is priced and make adjustments as needed.

You receive an Excel workbook with quantities, unit costs, and totals organized by CSI MasterFormat division. You also get a PDF with marked-up plans showing quantity locations. Additional deliverables include a clash detection report, a list of model gaps, and backup calculations. A schedule of values can be formatted if requested. For 5D estimates, we can provide a cost-loaded schedule in your preferred format. We also include a summary of assumptions and exclusions. All deliverables are organized for easy review and integration into your estimating or project management software. We can customize the format to meet your specific needs.

Yes, we can sign an NDA before you share your model and drawings. We treat all project information as confidential and do not share it with third parties. Our team works on secure servers and follows data protection protocols. We can also work within your own secure file transfer system if required. If you have specific security requirements, let us know and we will accommodate them. We understand that models and drawings contain sensitive information, and we take confidentiality seriously. We are happy to provide our standard NDA or review yours. Your data is used only for the purpose of preparing your estimate and is not retained beyond the project unless you request otherwise.

Send us your model, drawings, specifications, and project ZIP code. We will review the files and confirm turnaround and scope. You can also request a quote through our Get an estimate page. For ongoing needs, consider a Dedicated Construction Estimator. Once we receive your files, we will check for completeness and let you know if anything is missing. We will then provide a firm turnaround time and cost. If you have a deadline, let us know and we will do our best to meet it. We can also sign an NDA before you send files. After delivery, we are available to answer questions and make adjustments.

Yes. We map model quantities to a cost breakdown structure, then assign each line to a 4D scheduling sequence so the estimate becomes a cost-loaded schedule. You can track earned value against installed quantities and see which division is driving variance. This is the 5D BIM layer that turns a static takeoff into a project control tool. We deliver it in Excel, with the same quantities tied back to the model element IDs.

Yes. We accept IFC 4 and IFC 2x3 exports when the native Revit file is not available. We check the IFC schema for property set completeness, then extract quantities by element category and level. Missing property sets are flagged so you know which quantities came from geometry and which came from parameters. This keeps the takeoff defensible when the model is issued by a third party.

We filter the model to the trade scope you name, then take off only those elements. For Division 22 plumbing, that means fixtures, pipe runs, and valves by size and material. For Division 23 HVAC, it means ductwork by gauge and insulation, plus equipment. We still run clash detection on the filtered set to avoid double-counting where trades overlap. The output is a trade-specific Excel workbook with quantities in the units your subcontractors price.

We run clash detection in Navisworks or Autodesk Construction Cloud to find overlaps that would double-count quantities. Then we apply a coordination allowance for unresolved areas, typically 3–5% on MEP-intensive scopes. We document every assumption in the estimate so your BIM manager can review it. If the model is still in design, we can produce a parametric estimating range based on Uniformat assemblies instead of a hard bid number.