Fireproofing estimating services give you a third-party takeoff and price for Division 07 fire-resistive materials: spray applied fireproofing, intumescent fireproofing, cementitious mixes, and board fireproofing. You need this when you are bidding a steel-framed project and the structural drawings show hourly fire-resistance rating but not the applied fireproofing thickness, or when you want to verify a subcontractor's number before you sign. We measure steel surface area by member type from the framing plans, apply the correct UL design number thickness for each rating, and price material and labor with ZIP-code-adjusted RSMeans data.
- 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
The takeoff is organized by CSI MasterFormat division, with CSI 07 81 00 Applied Fireproofing, CSI 07 81 13 Sprayed Fire-Resistive Material, 07 81 16 Intumescent Fire-Resistive Coatings, 07 81 19 Cementitious Fireproofing, and 07 81 23 Board Fireproofing broken out separately. We also flag related scopes like 05 12 00 Structural Steel priming, 09 90 00 Paints & Coatings topcoats, and 07 84 00 Firestopping so you can see what belongs in your bid and what does not. If you are also pricing other envelope trades, see our Thermal & Moisture Protection Estimating page for how the divisions connect. For projects in active code jurisdictions, confirm the adopted IBC edition and local amendments with the building department before finalizing thicknesses.
As a fireproofing estimator, we work from the fireproofing schedule, the UL Fire Resistance Directory listing for each assembly, and the structural steel takeoff. Every line carries a surface area calculation in square feet by member type, so beam and column takeoff and deck fireproofing are never blended into one number. We also track coating thickness and board foot quantities where board fireproofing applies. If you need a fireproofing estimate for contractors or fireproofing estimating for subcontractors, send the plans and specs and we return Excel and PDF takeoffs in 24–48 hours. If you are pricing other trades, our Stucco & EIFS Estimating and Insulation Estimating Services pages show how those scopes are organized.
What our spray fireproofing takeoff covers
We take off fireproofing by assembly and rating, not by generic building square footage. The scope below reflects what we measure from your plans and what we leave for other trades or other divisions. If your project includes other thermal or moisture scopes, we can coordinate the takeoff with our Waterproofing Estimating Services or Insulation Estimating Services teams.
Spray-applied SFRM to beams
Spray-applied SFRM to beams, columns, and joists per UL design
Spray-applied SFRM to metal deck underside with rating-driven thickness
Spray-applied SFRM to metal deck underside with rating-driven thickness
Intumescent coating to exposed architecturally finished steel
Intumescent coating to exposed architecturally finished steel, DFT in mils
Cementitious fireproofing in weather-exposed or high-moisture areas
Cementitious fireproofing in weather-exposed or high-moisture areas
Board fireproofing around columns and beams where spray is not allowed
Board fireproofing around columns and beams where spray is not allowed
Primer compatibility review for shop-primed vs. field-primed steel
Primer compatibility review for shop-primed vs. field-primed steel
Sealer or topcoat over SFRM and intumescent where exposed
Sealer or topcoat over SFRM and intumescent where exposed
Mesh
Mesh, lath, and corner reinforcement at columns and penetrations
What every fireproofing estimating takeoff includes
- Spray-applied SFRM to beams, columns, and joists per UL design
- Spray-applied SFRM to metal deck underside with rating-driven thickness
- Intumescent coating to exposed architecturally finished steel, DFT in mils
- Cementitious fireproofing in weather-exposed or high-moisture areas
- Board fireproofing around columns and beams where spray is not allowed
- Primer compatibility review for shop-primed vs. field-primed steel
- Sealer or topcoat over SFRM and intumescent where exposed
- Mesh, lath, and corner reinforcement at columns and penetrations
- Penetration and hanger detailing around MEP supports and sprinkler piping
- Steel surface preparation: mill scale, oil, and rust removal
- Masking and protection of adjacent finishes, glass, and equipment
- Touch-up and repair of damaged fireproofing after MEP rough-in
How we build a fireproofing bid estimating package
- Review ratings and assembliesWe start with the fire-resistance plan and structural drawings to identify each hourly rating: 1 hr, 1.5 hr, 2 hr, or 3 hr. We match each rated assembly to the specified UL design or manufacturer's listing, which gives us the required SFRM thickness or intumescent DFT. For example, a 2-hour rating on a W12x40 column may require 1-1/2 inches of SFRM, while a 1-hour rating on the same member might need only 3/4 inch. If the drawings show a rating but no assembly, we flag it for the architect before pricing. We also note any ratings that apply to the deck versus the beam, because the UL assembly dictates where the material goes.
- Measure steel surface areaUsing Bluebeam Revu and PlanSwift, we measure lineal feet of beams, columns, and joists by member size from the framing plans. We convert to square feet of surface area using AISC surface-area-per-foot values, then add deck underside area from the roof and floor framing plans. For instance, a W10x22 beam has a surface area of about 5.0 SF per LF, while a W12x40 column has about 6.0 SF per LF, so the same lineal footage yields different square footage. We separate shop-primed from field-primed steel because primer type affects adhesion and surface prep. We also note any members with cover plates or unusual geometries that change the surface area calculation.
- Apply thickness and W/D ratioFor sprayed SFRM, we apply the thickness from the UL design and check the weight-to-thickness (W/D) ratio against the manufacturer's data. For intumescent, we convert DFT in mils to wet-film thickness and number of coats. We do not price by nominal thickness alone; the W/D ratio and coat count drive material quantity and labor. For example, a 1-hour rating on a column might require a W/D ratio of 1.2, meaning the material must weigh at least 1.2 pounds per square foot per inch of thickness. If the specified product cannot meet the ratio at the specified thickness, we flag it for substitution or additional coats. We also verify that the intumescent DFT is achievable within the manufacturer's recommended number of coats.
- Price material and laborWe price material by bag or pail count converted to SF coverage, using ZIP-code-adjusted RSMeans data for labor. We add waste and overspray factors typical for spray-applied material, which are higher than board products. For SFRM, typical waste factors range from 10% to 20% depending on the application method and surface conditions; for intumescent, overspray can be 15% to 25%. We also price sealer, topcoat, mesh, and lath as separate line items so you can see the full scope. Labor hours are separated by assembly and rating, because a 2-hour column application takes more time per square foot than a 1-hour beam application. We include equipment costs for pumps, mixers, and sprayers where applicable.
- Flag scope gaps and exclusionsWe compare our takeoff against the specification and drawing notes to catch items like firestopping at rated penetrations, topcoat over intumescent, and repair after MEP rough-in. Each gap is listed with a note on where it belongs in the CSI structure. For example, if the specifications call for a sealer over SFRM in a high-humidity area but the drawings do not show it, we flag it as a potential add. We also check for items like seismic bracing that may penetrate the fireproofing and require coordination. This lets you decide what to include in your bid and what to exclude clearly, reducing the risk of change orders.
- Verify code and submittalsWe check the adopted IBC edition and local amendments that affect fire-resistance ratings and material requirements. We also review the submittal requirements for UL designs and manufacturer approvals. For instance, some jurisdictions require special inspection of SFRM thickness and density, which adds testing and documentation costs. We confirm the adopted code edition and inspection protocol with the building department when needed. This step ensures the estimate reflects the code enforced in your jurisdiction. We also verify that the specified UL designs are current and not outdated, as the UL Fire Resistance Directory is updated periodically.
What we need from you
- Structural drawingsFraming plans, elevations, and schedules showing member sizes and locations for surface area takeoff.
- Fire-resistance planThe drawing that assigns hourly ratings to each steel member and deck area; without it we cannot set thickness.
- SpecificationsDivision 07 sections for SFRM, intumescent, and board fireproofing, including manufacturer and primer requirements.
- UL designsThe specific assembly numbers or manufacturer listings that govern thickness and W/D ratio for each rating.
- Primer informationShop primer type and manufacturer, because some primers are not compatible with certain SFRM products.
- Bid date and scopeYour bid due date and whether you need the full division or only the spray-applied portion.
Sample fireproofing material takeoff format
This is the format we use for a mid-size commercial project. Quantities are illustrative and show how we separate assemblies by rating and member type.
| Section | Line item | Qty | Unit | Ref. |
|---|---|---|---|---|
| 07 81 13 | SFRM to W10x22 beams, 1-hr, 3/4 in thick | 1,850 | LF | S-201 |
| 07 81 13 | SFRM to W12x40 columns, 2-hr, 1-1/2 in thick | 420 | LF | S-202 |
| 07 81 13 | SFRM to 1.5-in metal deck, 2-hr, 1-1/2 in thick | 12,400 | SF | S-203 |
| 07 81 16 | Intumescent to exposed steel, 25 mils DFT | 3,200 | SF | A-501 |
| 07 81 23 | Board fireproofing to columns, 2-hr | 48 | EA | S-204 |
| 07 81 19 | Cementitious fireproofing to exterior beams | 1,200 | SF | S-205 |
| 07 81 13 | Sealer over SFRM in high-humidity areas | 2,500 | SF | S-206 |
| 07 81 13 | Touch-up and repair after MEP rough-in | 40 | HR | S-207 |
| 07 81 16 | Topcoat over intumescent for exterior exposure | 1,800 | SF | A-502 |
| 07 81 13 | Mesh and lath at column corners | 320 | LF | S-208 |
Units and measurement basis for fireproofing takeoffs
Fireproofing quantities are driven by steel surface area and applied thickness. We measure each member type separately because the surface-area-to-lineal-foot ratio changes with the section profile.
| Item | Unit | How it's measured |
|---|---|---|
| Beams | LF | Lineal feet by size, converted to SF using surface area per foot from AISC tables |
| Columns | LF | Lineal feet by size, converted to SF; includes web, flanges, and cover plates |
| Metal deck | SF | Plan area of deck underside, with flute geometry factored for rating |
| Intumescent | SF | Surface area of exposed steel, with DFT in mils and number of coats |
| Board fireproofing | EA | Each column or beam wrap, priced by linear feet of board and attachment |
| Touch-up | HR | Labor hours for repair after other trades, based on damaged area percentage |
| Sealer/topcoat | SF | Area of applied sealer or topcoat over SFRM or intumescent, by product and coat |
Worked example: 1-hour column fireproofing and deck fireproofing
The dimensions and quantities below are illustrative only and do not come from a real project. They show the calculation sequence we use for a single beam and column. Step 1: Identify the rated assembly. The fire-resistance plan shows a 1-hour rating for beams and columns. The specification references UL Design N-XXX, which requires 3/4 inch of sprayed SFRM on a W10x22 beam and 1 inch on a W12x40 column. Step 2: Measure lineal feet from the framing plan. Using Bluebeam Revu, we measure 120 lineal feet of W10x22 beam and 24 lineal feet of W12x40 column. Step 3: Convert lineal feet to surface area. From AISC table, W10x22 has 6.0 square feet per lineal foot of surface area. W12x40 has 8.5 square feet per lineal foot. Beam surface area: 120 LF × 6.0 SF/LF = 720 SF. Column surface area: 24 LF × 8.5 SF/LF = 204 SF. Step 4: Apply thickness to determine material volume. For SFRM, material quantity is based on thickness and density. Assume the manufacturer's data gives coverage of 12 board feet per bag at 3/4 inch thickness. Beam material: 720 SF × (0.75 in / 12 in/ft) = 45 cubic feet. Convert to board feet: 45 CF × 12 = 540 board feet. Bags = 540 / 12 = 45 bags. Column material: 204 SF × (1.0 in / 12 in/ft) = 17 cubic feet = 204 board feet. Bags = 204 / 12 = 17 bags. Step 5: Add waste and overspray. Spray-applied fireproofing typically has a waste factor of 10–20% due to overspray and rebound. Use 15%: Beam bags with waste: 45 × 1.15 = 51.75, round to 52 bags. Column bags with waste: 17 × 1.15 = 19.55, round to 20 bags. Step 6: Price labor. Using RSMeans data adjusted for ZIP code, assume a labor rate of $65 per hour and productivity of 0.02 hours per SF for beams and 0.03 hours per SF for columns. Beam labor: 720 SF × 0.02 hr/SF = 14.4 hours. Column labor: 204 SF × 0.03 hr/SF = 6.12 hours. Total labor hours = 20.52. Step 7: Total material and labor. Material cost: 52 bags × $25 per bag = $1,300; 20 bags × $25 = $500; total material = $1,800. Labor cost: 20.52 hours × $65 = $1,333.80. Total direct cost = $3,133.80. This example excludes sealer, mesh, and equipment, which would be separate line items. We present the takeoff in this step-by-step format so you can verify each calculation.
What drives fireproofing cost estimating
Relative impact on a typical estimate for this trade, based on estimator judgment. Select a bar for details.
Hourly rating
A 2-hour rating can require roughly double the thickness of a 1-hour rating on the same member, which increases material quantity and labor. For example, a W12x40 column might need 3/4 inch for 1 hour and 1-1/2 inches for 2 hours. The rating is set by the building code and the fire-resistance plan, so it is not a choice you can value-engineer without an architect's approval. We verify the rating against the UL assembly and flag any discrepancies.
A 2-hour rating can require roughly double the thickness of a 1-hour rating on the same member, which increases material quantity and labor. For example, a W12x40 column might need 3/4 inch for 1 hour and 1-1/2 inches for 2 hours. The rating is set by the building code and the fire-resistance plan, so it is not a choice you can value-engineer without an architect's approval. We verify the rating against the UL assembly and flag any discrepancies.
Surface area per lineal foot varies by section. A W12x40 column has more surface area per foot than a W10x22 beam, so the same lineal footage yields different square footage. For instance, a W10x22 beam has about 5.0 SF per LF, while a W12x40 column has about 6.0 SF per LF. We measure by size and convert using AISC values rather than applying a single factor. This ensures accurate material quantities and labor hours.
The rating may apply to the deck, the beam, or both, and flute shape affects how much material is needed to achieve the thickness. For example, a 1.5-inch deep flute may require filling the flute volume with SFRM to achieve the rating, while a 3-inch flute may only need coating on the exposed surface. We review the deck profile and the UL assembly to determine whether the flute volume must be filled or only the exposed surface coated. This distinction can significantly change material quantity.
Shop primers can interfere with SFRM adhesion if they are not on the manufacturer's approved list. Field priming or primer removal adds labor and material. For example, a zinc-rich primer may require a bonding agent or primer removal before SFRM application. We check the primer specification against the fireproofing product data and flag conflicts before pricing. This step prevents costly rework and ensures the fireproofing will adhere properly.
Exterior or high-humidity areas may require cementitious fireproofing or a sealer over SFRM. Exposed architecturally finished steel often uses intumescent coating with a topcoat, which adds coats and dry time. For example, an exterior column may need a cementitious product and a sealer, while an interior exposed column may use intumescent with a topcoat for color. These requirements change both material and labor. We price each coat and product separately.
Work at height or in confined spaces requires scaffolding, lifts, or special access, which adds labor and equipment cost. For example, fireproofing a column at 30 feet may require a scissor lift, while a column in a confined mechanical room may require special ventilation and lighting. We review the project conditions and note where access may impact productivity. We also consider the time required to move equipment and set up scaffolding.
Local amendments and special inspection requirements can add testing, documentation, and hold points that affect the schedule and cost. For example, some jurisdictions require third-party inspection of SFRM thickness and density at specified intervals. We confirm the adopted code edition and inspection protocol with the building department when needed. This step ensures the estimate includes any additional testing or documentation costs. We also verify that the specified UL designs are accepted by the local authority.
Common scope gaps we catch in a fireproofing bid takeoff
These are the items that most often fall between the fireproofing subcontractor and other trades. We list them explicitly so you can decide who carries them.
- Redesign of steel member sizes after structural drawings change, which can change the UL assembly and required thickness. We compare the latest structural sheets against the fire-resistance plan and flag any member that no longer matches the rated assembly.
- W/D ratio compliance for sprayed material, not just nominal thickness. The specification may state a thickness, but the UL design also sets a weight-to-thickness ratio. We verify both and note where the specified product cannot meet the ratio.
- Deck flute geometry and whether the rating applies to the deck or the beam. The fire-resistance plan may show a rating over a deck area, but the UL assembly may require protection only on the beam. We read the assembly details and measure accordingly.
- Shop primer type conflicting with the SFRM manufacturer's approved primer list. This hides in Division 05 specifications and shop painting notes. We cross-check the primer against the fireproofing product data and flag any required field preparation.
- Intumescent DFT vs. WFT and the number of coats required to reach the rated thickness. The specification may state a dry-film thickness, but the product data gives wet-film thickness per coat. We convert and price the correct number of coats.
- Topcoat or sealer over intumescent for exterior or high-humidity exposure. This is often specified in Division 09 but required for the fireproofing warranty. We include it as a separate line and note the division where it belongs.
- Firestopping at rated wall and floor penetrations, which is separate from fireproofing. This is Division 07 84 00 and is not part of the SFRM scope. We exclude it clearly and point to the firestopping section.
- Seismic bracing and hanger attachments that penetrate the fireproofing. These are often detailed in Division 05 or 13, and they require coordination with the fireproofing scope to avoid damage and rework.
- Touch-up and repair after MEP rough-in. This is rarely included in the fireproofing subcontract but is necessary to maintain the rating. We quantify the likely damaged area and price it as a separate line.
Fireproofing materials: SFRM, intumescent, and board by rating
The choice of fireproofing material affects thickness, surface preparation, and cost. This table compares the main options you will see specified.
| Material type | Typical rating range | Substrate suitability | Exposure / finish |
|---|---|---|---|
| Sprayed SFRM (low-density) | 1–3 hours | Interior steel, deck | Interior only; requires sealer in high humidity |
| Sprayed SFRM (high-density) | 1–4 hours | Interior/exterior steel, deck | Can be used exterior with sealer; more durable |
| Cementitious fireproofing | 1–4 hours | Exterior steel, columns, beams | Weather-resistant; can be left exposed or painted |
| Intumescent coating | 0.5–3 hours | Interior/exterior exposed steel | Architectural finish; requires topcoat for exterior |
| Board fireproofing | 1–4 hours | Columns, beams, enclosures | Interior; used where spray is not allowed |
| Sealer / topcoat | N/A (protective) | Over SFRM or intumescent | Exterior or high-humidity; adds cost and dry time |
Codes and standards behind every fireproofing estimate
Model codes
The International Building Code (IBC) sets fire-resistance rating requirements based on construction type, occupancy, and building height. Chapter 6 (Types of Construction) and Chapter 7 (Fire and Smoke Protection Features) are the key provisions. The ratings assigned to structural steel, floor/ceiling assemblies, and roof/ceiling assemblies drive the required thickness of fireproofing. The International Residential Code (IRC) applies to one- and two-family dwellings and townhouses, where fireproofing may be required for steel beams in some cases. The IECC does not directly affect fireproofing but may influence insulation and envelope details that interact with fire-rated assemblies. Confirm the adopted code edition with the local building department, as editions and amendments vary by jurisdiction.
Industry standards
ASTM E119 is the test standard for fire-resistance ratings of building constructions. ASTM E736 covers cohesion/adhesion of sprayed fire-resistive materials. ASTM E605 provides test methods for thickness and density of SFRM. Underwriters Laboratories (UL) publishes the Fire Resistance Directory, which lists specific assemblies (UL designs) that prescribe the minimum thickness and density of fireproofing for given steel member shapes and ratings. The American Institute of Steel Construction (AISC) provides surface area per lineal foot for steel shapes, which is essential for converting lineal feet to square feet. These standards and references are used to determine the required material and thickness for a given assembly.
Specification sections
CSI MasterFormat Division 07 sections are critical: 07 81 00 Applied Fireproofing, 07 81 13 Sprayed Fire-Resistive Material, 07 81 16 Intumescent Fire-Resistive Coatings, 07 81 19 Cementitious Fireproofing, and 07 81 23 Board Fireproofing. Also review 05 12 00 Structural Steel for primer type and surface preparation, 09 90 00 Paints & Coatings for topcoats over intumescent, and 07 84 00 Firestopping for penetration seals. The specification will state the required UL design, thickness, density, primer compatibility, and any special inspection requirements. These details directly affect material quantity, labor hours, and the need for additional coats or surface preparation.
Local amendments
Local jurisdictions may adopt a specific edition of the IBC and amend it with local requirements. For example, some cities require a higher fire-resistance rating for certain occupancies or have special provisions for high-rise buildings. Amendments can also affect inspection and testing frequency. Always confirm the adopted code edition and any local amendments with the local building department before finalizing the takeoff. This step ensures that the thickness and material you price comply with the enforced code, avoiding costly redesign or rework.
Who uses our fireproofing estimating services
General contractors
You need a third-party number to compare against fireproofing subcontractor bids and to confirm the scope is complete. Our takeoff shows the assembly and thickness basis so you can see where bids differ.
Fireproofing subcontractors
You bid multiple projects and need a fast, accurate takeoff to set your price. We deliver by CSI division with marked-up plans so your estimator can check our measurements against the drawings.
Developers and owners
You want to verify that the fireproofing scope is priced correctly before you commit to a budget. Our estimate breaks out material and labor by assembly so you can see the cost drivers.
Architects
You specify the ratings and assemblies but may not have a cost check. Our takeoff confirms that the specified thicknesses and products are priced as drawn, and flags where the drawings are silent.