Accurate CSI Division 05 structural steel cost estimates, tonnage takeoffs, connection detailing, and erection man-hour calculations for steel fabricators and erectors across the USA.
Wide-flange and joist estimates typically cost $150–$1,000. Most structural steel estimates are returned in 24–48 hours, and the fee depends on project size and scope.
Representative Quantification & BOQ Deliverable
| Work Item / Specification | Quantity | Unit |
|---|---|---|
W18 x 35 Composite Floor Framing Beams (A992 Gr 50) | 2,450 | LF |
W24 x 55 Main Transfer Floor Girders | 1,240 | LF |
W14 x 90 Structural Building Columns | 880 | LF |
HSS 8x8x1/2 Structural Steel Tubing (A500 Gr B) | 640 | LF |
L4 x 4 x 3/8 Perimeter Shelf & Spandrel Angles | 1,180 | LF |
Upload your architectural, structural, or engineering drawings. Include your trade scope, project location and bid deadline. The quote will confirm the fee, deliverables and delivery date.
CSI Division 05 Structural Steel estimating inquiry
Specialized construction takeoffs
Review materials, units and scope
Confirm your deadline before work starts
Plan-based quantity takeoffs
Identify the current drawing revision, included systems, alternates and addenda. Agree whether labor, equipment, demolition, testing, permits, taxes, freight and owner-furnished items are included. Missing design information needs a recorded allowance or clarification; estimating does not replace engineering design or code approval.
Keep measured quantities separate from waste and procurement allowances. For a priced estimate, confirm the project location, pricing date, supplier inputs and labor basis. Final bid qualifications and markups remain subject to contractor review.
In structural steel construction, mill material costs, shop fabrication hours (cutting, drilling, fitting, welding), and field crane erection rates comprise major expense categories. Missing moment connection plates or miscalculating linear weight of W-shapes creates massive financial exposure.
Member shapes, grades (A992/A500), weld symbols & loads
W-beams, HSS columns, angles, channels & plates
AISC weight per foot conversion to exact LBS & Tons
Base plates, shear tabs, moment plates, A325 bolts
Shop fabrication man-hours & field crane rental
Delta addenda check, camber review & bid package
Every estimate prepared by F&K Estimatings delivers an exhaustive line-item breakdown formatted for material suppliers, specialty subcontractors, and general contractor bid reviews.
Wide-flange and joist estimates typically cost $150–$1,000. Most structural steel estimates are returned in 24–48 hours, and the fee depends on project size and scope.
| Estimate Component | Included Scope & Line Items | Unit of Measure |
|---|---|---|
Wide Flange Structural Beams | ASTM A992 Grade 50 W-shapes (W8 to W36), girders, purlins, lintels, and cambered beams. | Linear Feet / Tons |
Columns & Hollow Sections (HSS) | HSS square, rectangular, and round structural tubing (ASTM A500 Gr B/C), pipe columns, built-up columns. | Linear Feet / Tons |
Open Web Steel Joists (OWSJ) | K-Series, LH-Series, and DLH-Series open web steel joists, top chord extensions, bridging angles, bridging anchors. | Count (EA) / LBS |
Corrugated Metal Floor & Roof Decking | 1.5" composite floor deck (20ga, 18ga, 16ga), 1.5" & 3" type B roof deck, shear studs (welded Nelson studs), pour stops. | Square (SQ) / SF |
Base Plates, Anchor Bolts & Embeds | Heavy steel column base plates, leveling plates, ASTM F1554 anchor bolt cages, embedded weld plates, leveling nuts. | LBS / Count (EA) |
Structural Connections & Gussets | Shear tabs, moment connection plates, diagonal brace gusset plates, stiffener plates, ASTM A325/A490 structural bolts. | Calculated Tonnage (%) |
Shop Primer & Paint Coatings | Standard red oxide / grey zinc-chromate shop primer, SSPC-SP6 commercial blast cleaning, hot-dip galvanizing. | Square Feet (SF) / Tons |
Shop Fabrication Labor Hours | Saw cutting, CNC beam line processing, fitting, shop welding (FCAW/GMAW), assembly, and quality control hours. | Shop Man-Hours |
Field Erection & Crane Logistics | Mobile hydraulic crane / crawler crane rental, ironworker raising gang, bolting crew, and decking install hours. | Crew Days / Crane Hrs |
Bid-Ready Structural Steel BOQ | Itemized Excel workbook with piece marks, weights, mill shapes, coating costs, and marked PDF framing plans. | Complete Bid Package |
Select a category below to explore our specific measurement parameters and deliverable formats.
Linear measurement and tonnage calculations for all main framing members categorized by floor level.
Deliverable Format
Linear footage, unit weight (LBS/FT), total weight (LBS & Tons), and piece marks by structural grid.
Our structural steel takeoffs strictly follow CSI MasterFormat Division 05 standards, aligning with AISC Code of Standard Practice for Steel Buildings.
Every member size and connection type is structured for easy fabrication shop buyout.
Beams, columns, trusses, base plates, and connection plates.
Open web steel joists (K, LH, DLH), bridging, and accessories.
Composite floor deck, steel roof deck, and welded shear studs.
Shop primer, blast cleaning, and hot-dip galvanizing.
Structural bolts (A325/A490), anchor rods, and weld wire.
Structural exterior cold-formed steel studs and joists.
Steel estimating requires exact member length measurements multiplied by standard AISC pound-per-foot weights (e.g., W18x35 = 35 lbs/LF). We calculate exact main member tonnage and apply standard percentage allowances (8%–15%) for connection plates, bolts, and welds.
Send your drawing sheets for a dedicated takeoff schedule.
Reference unit weights utilized by our structural steel estimators:
Understanding whether your team needs raw quantity measurements or a fully priced bid estimate helps you order the exact service you require.
Our systematic 7-step engineering process eliminates missing elements, prevents duplicate counts, and delivers defensible estimates.
We review structural S-sheets, steel notes, member schedules, weld symbols, and AISC specifications.
Using Tekla, SDS/2, and Bluebeam, we trace all beams, columns, bracing, and joists, capturing centerline lengths.
We map measured members to AISC dimensional databases, calculating exact linear weight and total steel tonnage.
We calculate base plates, cap plates, shear tabs, moment splices, anchor bolts, and field bolts.
We measure composite floor and roof deck area, gage thickness, edge pour stops, and Nelson shear studs.
We calculate shop fabrication man-hours (cutting, fitting, welding) and field crane erection gang days.
A Senior Steel Estimator conducts a peer review to verify load transfers, connection percentages, and addenda changes.
From commercial tenant fit-outs to heavy industrial complexes, we adapt our takeoff methodology to project specifications.
Steel framed offices, composite floor decks, moment frames, and elevator core framing.
Longspan joist roof framing, pipe/HSS columns, perimeter canopies, and crane runway beams.
Heavy structural frames designed for stringent vibration tolerances and heavy rooftop mechanical equipment.
Gymnasium structural steel trusses, cafeteria clear spans, stadium canopies, and catwalks.
Single-story commercial framing, architectural entrance portals, parapet framing, and skylight curbs.
Pedestrian overpass bridges, highway sign structures, structural substations, and equipment towers.
Material and labor costs fluctuate drastically by project geography, supplier logistics, trade union jurisdictions, and site conditions. We do not use flat national averages.
Confirm the pricing date, project ZIP code, supplier quotations, labor basis and equipment allowances in the project brief. Identify any owner-supplied rates or provisional costs separately.
Hot-rolled steel coil and scrap surcharges dictate base mill pricing per hundredweight (CWT).
Heavy welded moment frames require 3x more shop labor hours per ton than simple shear-tab pin connections.
Large hydraulic crane rentals (150–300 ton) with long radius reaches significantly impact erection budgets.
Hot-dip galvanizing and multi-coat epoxy systems add substantial per-ton finishing costs over standard shop primer.
Field-bolted connections are significantly faster and cheaper to erect than full-penetration field welds.
Review illustrative project models demonstrating how CSI Division 05 Structural Steel quantities are extracted, itemized, and structured under standard contractor bidding conditions.
Agree the scope and review requirements for your project. Check quantities against the supplied drawing revision and record unresolved items before preparing a final bid.
When bidding tight commercial deadlines, subcontractors cannot afford incomplete takeoffs or guesswork. A clear estimating brief helps identify the quantities, pricing inputs and qualifications needed for bid review.
Request drawing references and identify allowances separately from measured quantities.
Identify addenda and agree the revision scope, fee and delivery date.
Confirm the spreadsheet format, formulas and cost inputs required for your bid.
Confirm the project ZIP code, pricing date, supplier quotations and labor basis.
Detailed technical and commercial answers to help you navigate structural steel estimating service, material scheduling, and bid preparation.
For a contractor bid, identify the trade package, issued plan revision, specifications, alternates and the responsibility for adjoining work. Separate measured quantities from unit prices, subcontractor quotations and project allowances so the bid reviewer can trace each assumption.
Agree the spreadsheet columns, drawing references, exclusions, pricing date and revision allowance before work starts. An addendum or changed scope needs an identified issue date and change record; an illustrative sample does not establish project-specific pricing or specialist experience.
Compare commercial bid estimating scope with the published sample evidence, then request the required handoff.