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CSI Division 05: Steel Estimating

Steel Estimating Services

Wrong steel numbers cost you the bid or the margin. We deliver accurate structural steel estimating, with shop costs and erection labor separated, priced to your zip code, in 24-48 hours.

Structural Steel Takeoff Rebar Estimating Fabrication Cost Analysis Erection Cost Estimating AISC Standards
7,900+
Projects Completed
96%
Accuracy Guaranteed
24-48h
Turnaround
All
States Covered

What Every Steel Estimate Includes

straightenTONNAGE TAKEOFF
linkCONNECTION SCHEDULE
precision_manufacturingFABRICATION COSTS
table_chartEXCEL SPREADSHEET
location_onZIP CODE PRICING
Overview

Steel Estimates That Hold Up in the Field

Steel estimating services are the professional calculation of all costs tied to structural steel, reinforcing steel, and miscellaneous metals on a construction project. Tonnage, fabrication labor, erection, site logistics, the works. For fabricators, erectors, and steel contractors across the USA, getting this right isn't just a bidding exercise. It's the difference between a profitable job and one that bleeds from day one.

Here's the thing about steel. A lot of estimating companies will hand you a tonnage number and call it an estimate. That's not enough. Not even close. The connections are what drive shop cost, and a basic takeoff won't catch the difference between a simple shear tab and a full moment frame. Those are completely different scopes of shop work. Not by a long shot. Our steel estimating team measures every member, classifies every connection type, and always separates shop production cost from field erection labor. Because they're completely different line items, and treating them as one number just creates problems later.

Across all states, steel contractors, fabricators, erectors, and GCs trust us with their numbers and construction estimating services. From simple warehouse frames to 20-story moment frame buildings, heavy industrial structures, and bridge work. AISC certification is on the team, and current US mill prices, shop rates, and regional ironworker labor costs are tracked regularly. Not historical averages. Real numbers from real markets.

US steel pricing has been volatile through 2025 and into 2026. Mill prices shift weekly. Steel shops are quoting differently depending on their backlog. Erection labor rates vary significantly by market. If your estimates aren't built on current numbers... you're either buying jobs or leaving money on the table. Both situations are frustrating. Both are avoidable.

7,900+ steel estimates completed across American markets. The patterns that cause bids to miss are predictable, and catching them before bid day is exactly what we do. Send us your structural drawings and let's get started.

7,900+
Steel Projects Completed
96%
Accuracy Guaranteed
24-48h
Typical Turnaround
All
States We Cover
Estimate Scope

What Goes Into Every Steel Estimate We Run

Not a tonnage summary. Not a rough square foot multiplier applied to the whole building. Here's what we actually cover on every Division 05 estimate.

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Structural Steel Takeoff and Costing

Wide flange beams and columns, HSS members, steel joists and deck, moment frames, braced frames, canopies, mezzanines, pre-engineered building systems. Every member measured directly from your structural drawings. Weight calculated per member, connections counted and classified by type. Shop labor gets priced separately from field erection labor. Always. Because they're different costs with different drivers, and anyone bundling them together isn't giving you a real estimate.

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Connection Schedule and Hardware Pricing

This is where most estimates fall apart. Moment connections, shear tabs, end plates, bolted splices, base plates, anchor rods, gusset plates. Each connection type classified and priced for shop complexity. Bolting hardware, shims, and embed plates all get separate line items. Nothing gets lumped into a catch-all allowance and buried in the bid.

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Fabrication Cost Analysis

Shop labor broken out by operation. Cutting, welding, drilling, fitting, assembly, all separated. AISC certification requirements, shop drawing submittal costs, and quality control inspection fees are included where the specs call for them. Galvanizing, coating requirements, and spray-applied fireproofing on steel members get their own line items because they affect both cost and schedule in ways that matter when you're negotiating with fabricators.

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Erection Cost Estimate

Crane requirements, rigging, labor hours by crew type, sequencing, and site logistics. A tight urban site with restricted laydown area runs higher per ton than an open industrial site. Obviously. But a lot of estimates apply one flat rate regardless of site conditions. Ours don't. Ironworker rates are pulled from your specific zip code and updated regularly, not from national averages that haven't reflected real market conditions in years.

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Reinforcing Steel and Rebar Estimating

Detailed rebar quantity takeoffs with bar sizes, lengths, bending schedules, and lap splice requirements. ASTM A615 Grade 60 rebar, epoxy-coated reinforcement, welded wire reinforcement, post-tensioning systems, headed reinforcement, embedded plates and anchors. For complex structures we use 3D model technology to verify quantities and flag coordination issues before fabrication starts. Catches problems early. Saves real money.

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Miscellaneous Metals and Specialty Items

Steel stairs, handrails, gratings, lintels, embeds, bollards, screen wall framing, ladders, specialty connections. Easy to miss on a fast takeoff. These items show up on every invoice and they add up, especially on commercial projects. We treat them as required scope, not an afterthought, so you're not surprised when the fabricator's quote comes in higher than your number. Need the full metals estimating scope including light gauge framing? We handle that too.

Need change order estimates, value engineering comparisons, or PEMB pricing stacked against conventional steel? We handle those too. Send your own fabricator quotes with the plans and we'll apply your actual numbers rather than pulling from our database. Rush delivery is available when bid deadlines are tight.
24-48 hrs
Standard Commercial Steel
5-7 Days
High-Rise and Complex Industrial
Rush
Available. Call Us Directly

Deadlines in steel bidding are real. We work around yours, not the other way.

96% Accuracy Guaranteed

That number is tracked against actual project costs from contractors who used our steel estimates and then recorded what the job actually came in at. Not a marketing figure. A real one. Every estimator on our team treats it as a personal standard. You're not getting a tonnage calculation with a flat waste factor thrown on top. You're getting an estimate built from your actual structural drawings, priced to your zip code, with every connection detail and shop requirement reviewed before it leaves our desk.

96%
Accuracy Guaranteed
Project Types

Steel Estimating for Every Project Type

Commercial, industrial, infrastructure, residential. If it involves structural steel, reinforcing steel, or miscellaneous metals, we've estimated it.

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Commercial Buildings

Office buildings, retail centers, mixed-use developments, parking structures, hotels. Commercial is a big part of what we do, and also where estimates get complicated fastest. Wide flange moment frames, braced cores, steel deck, composite floor systems poured over concrete slabs. Connection complexity on a 10-story office building is completely different from a warehouse frame, and the per-ton fabrication cost reflects that. Commercial steel has been priced here from small tenant buildouts to large multi-story towers. The scope doesn't change how the work gets done.

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Industrial Facilities

Warehouses, manufacturing plants, processing facilities, distribution centers, power generation. Industrial steel is usually heavier tonnage with simpler connections. But equipment support framing, crane girders, mezzanines... those add complexity that plain warehouse frames don't have. Hundreds of industrial steel estimates completed across US markets. The cost surprises on these projects show up in the same places every time. Crane girder sizing. Mezzanine handrail specs. Equipment connection details buried on the mechanical drawings. None of it gets past us.

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Infrastructure Projects

Bridges, transportation hubs, stadium structures, municipal buildings. Specialized work. Bridge girders, truss structures, high-strength connections, seismic detailing in high-seismic zones. Infrastructure steel needs estimators who understand the engineering behind what they're measuring, not just how to run a takeoff. Our team does. If something falls outside what we've done, we say so upfront. That almost never happens.

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home

Residential Steel

Custom homes, mid-rise multi-family, steel stud framing, post-tensioned slabs. Cold-formed steel framing and structural steel are different estimating disciplines, and we handle both. Cold-formed light gauge framing is typically estimated by linear foot of stud length and square foot of wall area, while structural steel is measured by tonnage. Mixing those methodologies on a single estimate creates gaps. Residential steel scopes tend to get underestimated because they look smaller and simpler. They're not always. Connection details, concrete anchoring, trade coordination... it adds up faster than people expect, especially on high-end custom work where the architect has some opinions about exposed steel.

arrow_forwardGet Quote for Residential Steel
Steel Types and Standards

Steel Specifications and Standards We Work With

We estimate across the full range of structural steel and reinforcing steel specs used in US construction. All estimates follow AISC and ACI standards.

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Structural Carbon Steel

Wide Flange, HSS, Angles, Plates

ASTM A992 wide flange sections are the workhorse of commercial construction. ASTM A36 for standard applications, ASTM A572 Grade 50 and 65 for high-strength work. HSS for columns and architectural frames. Angles, channels, plates, grating, all of it. Every section type is measured by weight with current US mill pricing applied, not numbers from six months ago.

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Reinforcing Steel

Rebar, Post-Tensioning, WWR

ASTM A615 Grade 60 and 75 rebar. ASTM A706 low-alloy seismic rebar for projects in high-seismic zones. Epoxy-coated and galvanized reinforcement. Post-tensioning strand and hardware. Welded wire reinforcement, headed reinforcement, that kind of thing. Bar bending schedules prepared in standard format for fabricator use when the project calls for it.

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Specialty Steel Items

Weathering, Stainless, Galvanized

Weathering steel (Corten) for bridges and exposed architectural applications. Stainless steel components where the exposure conditions demand it. Galvanized systems for corrosion protection requirements. These materials aren't priced the same as standard carbon steel, and their shop requirements are different too. Weathering steel, for instance, typically adds 15-25% to base material cost but eliminates painting cycles over the structure's life. A blanket premium doesn't cut it. Each one gets priced based on its actual spec.

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High-Strength Bolting and Fasteners

A325, A490, Anchor Rods

ASTM A325 and A490 high-strength structural bolts. Anchor rods and base plate hardware. Shear studs for composite deck applications. Specialty fasteners where the connection details require them. Hardware quantities come straight from the connection schedule, not from a percentage allowance. Every fastener type counted and priced individually.

What Gets Missed

Why Steel Estimates Go Wrong

Steel contractors who've underbid a shop scope know this better than anyone. Here's where the numbers usually fall apart.

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Connection Complexity Gets Ignored

100 tons of warehouse steel and 100 tons of moment-frame office steel are not the same shop scope. Not even close. The warehouse frame has simple shear connections. The office building has full moment connections, end plates, stiffeners, the whole deal. If both get priced at the same per-ton shop labor rate, one of those bids is wrong. Usually the one you win.

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Erection Sequencing Not Priced In

Tight urban site, no laydown area, restricted crane access. That project costs more per ton to erect than a wide-open industrial site. Significantly more. But a lot of estimates apply the same erection rate regardless of conditions. Our erection estimates are built around your actual site, not an assumed average. That matters when you're submitting a number you have to stand behind.

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Miscellaneous Metals Just... Disappear

Steel stairs, handrails, gratings, embeds, bollards, lintels. These don't show up cleanly on most structural drawings and they get missed constantly. Then the fabricator quotes them separately and suddenly your number is off. We pull every miscellaneous metals item from the drawings as standard scope. Not optional. Not an afterthought.

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Shop Drawing Requirements Get Overlooked

Some owners require AISC-certified fabricators and specific shop drawing submittals. Others don't. That difference affects which fabricators can even bid the job and what their prices will be. If your estimate doesn't account for this upfront, you're either leaving out fabricators who'd come in cheaper or you're pricing in certifications the owner never asked for. Our team understands these distinctions and prices accordingly.

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Stale Pricing on a Live Project

US steel markets have been moving. Mill prices, shop rates, ironworker labor. Using cost data that's six months old on a project going out to bid today is a real problem. We update our pricing databases regularly and track current market conditions specifically for US steel markets. Your estimate reflects current pricing, not what things cost when someone last updated the spreadsheet.

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Fabrication and Erection Bundled as One Number

Works fine on paper. Falls apart the moment your fabricator and your erector are quoting separately, or when you need to value engineer the erection scope without touching the fab cost. We always keep them as separate line items. It's cleaner, it's more accurate, and it gives you options when you're working through a number with a GC.

Steel bid coming up and the numbers aren't right yet?

Upload your structural drawings and we'll review the scope. Quote back to you fast, no obligation.

Our Process

How Our Steel Estimating Process Works

Four steps from drawings in to estimate out. Here's exactly what happens.

1

Send Us Your Structural Drawings

S-sheets, connection details, specs, existing bid packages. Revit or Tekla models work fine too. So do PDFs. Email, Dropbox, Google Drive, it doesn't really matter. Send us whatever you have and we'll flag within 30 minutes if anything additional is needed before we get started.

check_circlePDF, DWG, Revit, Tekla, and most formats accepted
2

Scope Review and Quote

We go through your drawings and nail down the full scope. Steel grades, connection types, AISC requirements, coating specs, anything in the project documents that affects the estimate. Questions get asked upfront, before a single quantity is taken off, not after we've delivered numbers that need to be revised. You'll have a firm quote and a delivery date, usually within a few hours of sending us the plans. Sometimes faster.

check_circleEvery quantity traceable to the structural drawings
3

Digital Takeoff

PlanSwift and Bluebeam Revu for standard digital takeoff. Tekla or Revit for BIM projects. Every structural member measured by size and length. Tonnage calculated. Connections identified and classified by type. Rebar quantities pulled separately with bar sizes, bending requirements, and lap locations. Miscellaneous metals measured line by line. This step takes time to do properly, and we don't rush it. All quantities are cross-checked before any pricing starts.

check_circleFabrication and erection separated throughout the takeoff
4

Pricing, Senior Review, Delivery

Current mill pricing, RSMeans, and our own regional cost database. Fabrication labor rates applied by shop complexity and connection type, not a flat per-ton number. Erection labor rates pulled from your zip code. A senior estimator reviews the full estimate before anything leaves the office. What you receive: Excel spreadsheet, marked-up drawings, tonnage summary by structural system, connection schedule, shop cost analysis, erection cost breakdown. Ready to drop into a bid package. Have your own fabricator quotes? Send them with the drawings and we'll build from your actual numbers instead of ours.

verifiedSenior review on every estimate before delivery
Real Project Example

What Good Steel Estimating Actually Looks Like

A steel contractor in Chicago needed to bid a 12-story office building. 485 tons of structural steel, complex moment connections throughout, steel prices moving weekly. Tight deadline, competitive market, no room for a number that didn't hold up.

Our estimate came back with a full tonnage breakdown by floor level, a complete connection schedule with shop complexity ratings, shop labor analysis separated from on-site erection cost, current Chicago market pricing applied to both fabrication and ironworker labor, and a crane and rigging allowance built around the site access constraints.

They submitted a $1.65 million bid and won the project. The numbers held when the fabricator and erector came in with their actual quotes.

That's what good steel estimating looks like.

Why Outsource

Why Steel Contractors Outsource Their Estimating

Honest answer? The math. A solid in-house steel estimator costs $80,000 or more per year. Before software. Before database subscriptions. Before overhead. And they're on the payroll whether you have bids to run or not. Outsource it and you pay per estimate, only when you need one. For most steel contractors and fabricators, that calculation isn't complicated.

Then there's capacity. Each steel estimate takes six to twelve hours when done properly. If you're trying to bid three to five projects a month, that's a serious internal constraint. Take the estimating off your team's plate and the bottleneck disappears. More bids go out. That's typically more work coming in. You focus on running the jobs, managing your crews, and keeping clients happy. The numbers are our job.

But quality is what it really comes down to. Steel estimating needs AISC knowledge, current US market data, and steel production experience. That combination is hard to build in-house, especially across different project types and different regional markets. When your estimates are handled by people who do this full-time, the connection schedule is right, erection logistics are priced in, and the numbers reflect what shop contractors and ironworkers are actually quoting in your market. Inaccurate estimates lead to cost overruns. More often than most contractors want to admit. Outsourcing doesn't remove all risk. But it gets you substantially closer to numbers you can build from.

We've completed over 5,500 steel estimates for US markets, from $15,000 structural repair jobs to $8.5M commercial buildings. Licensed across 22 states with professional liability coverage. Our clients keep coming back bid after bid. That's the most straightforward signal we can give you about how the work holds up.

Why Choose Us

Why Steel Contractors Trust Blaze Estimating

Plenty of estimating companies are out there. Here's what actually separates us on steel work.

verifiedAccuracy

Numbers Built From Your Drawings

96% Accuracy Guaranteed tracked against what projects actually cost in the field. Not a marketing figure. Every member measured, every connection counted, fabrication and erection always priced separately. That's the standard on every estimate that leaves our desk.

scheduleSpeed

24-48 Hours. Seriously.

Most commercial steel estimates delivered in 24-48 hours. Bigger projects take longer and you'll know exactly how long before we start. Steel bid deadlines are real. The workflow gets built around your timeline, not the other way.

workspace_premiumCredentials

AISC-Certified. Licensed in 22 States.

AISC certification and professional liability coverage across 22 US states. Connection design standards, shop production requirements, and the specifics that separate a real steel estimate from a rough tonnage calculation are all in-house knowledge here. That shows up in the deliverable.

pin_dropLocal Pricing

Priced to Your Actual Market

Ironworker rates in Phoenix are not the same as Chicago or New York. Not even close. Every estimate calibrated to your project zip code. So the numbers you're bidding with match what your subs and fabricators are actually quoting in that specific market.

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Flat Rate. No Hidden Charges.

Firm quote before we start. What we quote is what you pay. Estimate comes in editable Excel with marked-up drawings. No locked files, no proprietary formats, nothing that requires special software on your end. You own the spreadsheet from the moment it arrives.

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All States Covered

Every US market. California, Texas, New York, Florida, everywhere in between. Project location just changes the pricing inputs. The estimating quality and depth stay consistent regardless of where the steel goes up.

Who We Serve

Who Uses Our Steel Estimating Services

Steel fabricators who need accurate tonnage and connection cost breakdowns before committing to a fabrication price. Erectors bidding GC packages where erection scope isn't cleanly defined in the bid documents. GCs managing steel subcontracts who want an independent check before accepting a sub's number.

Developers running pre-construction budgets before design is finalized. Architects who need realistic cost figures during schematic design. Quantity surveyors needing a third-party takeoff for comparison purposes. Project managers coordinating multiple trades under a hard bid deadline.

The contractors who consistently win profitable steel work aren't always the cheapest bidders. Usually they're the most accurate ones. Subs who submit tight, reliable estimates are the ones GCs call first on the next project. Getting the steel estimating right builds that reputation over time. That's why clients keep coming back.

What's Included

What You Get With Every Steel Estimate

No surprises about what's included. Here's exactly what we deliver on every Division 05 project.

check_circleComplete material takeoff with member sizes, quantities, and tonnage breakdown by structural system
check_circleFabrication cost analysis separating shop labor by operation: cutting, welding, drilling, fitting, assembly
check_circleConnection schedule with hardware pricing: bolts, anchor rods, base plates, embed plates, shims
check_circleErection cost estimate including crane requirements, rigging, labor hours, and site logistics
check_circleReinforcing steel quantities with bar sizes, bending schedules, and lap splice requirements
check_circleMiscellaneous metals: stairs, handrails, gratings, lintels, embeds, bollards, ladders
check_circleZip code-based pricing using current mill rates, shop labor rates, and regional labor costs
check_circleWastage allowance (typically 5-10%) calibrated to project complexity and connection density
check_circleCoating and galvanizing costs where project specifications require them
check_circleColor-coded marked-up drawings showing every measured quantity by location
check_circleBid summary in CSI Division 05 MasterFormat, ready for GC submission
check_circleExcel spreadsheet with every line item labeled and organized. Everything a steel fabricator, erector, general contractor, or project manager needs to submit a complete, competitive bid. Drop it into your bid package and go. No reformatting required.

We deliver in CSI Division 05 MasterFormat. GCs and owners know how to read it, and your subs can work from it directly without any translation on your end.

Need it in your own company template? Send it with your drawings and we'll match your format. No proprietary files. No locked spreadsheets. You get the estimate and you own it.

Ready to bid more steel work with numbers you can actually trust?

Drop us your structural drawings. We'll confirm the scope, quote you a flat rate, and get to work. Most steel estimates delivered within 24-48 hours.

FAQ

Common Questions About Steel Estimating

Material takeoff with tonnage breakdown, fabrication cost analysis by operation (cutting, welding, drilling, fitting), connection schedule with hardware pricing, erection cost estimate with crane and labor, rebar quantities and bending schedules, miscellaneous metals scope, coating and galvanizing costs where required, wastage allowance, and a bid summary in CSI Division 05 format. Fabrication and erection are always separated. Everything delivered in Excel with color-coded marked-up drawings. Ready to drop into a bid package and go.

Fabricated structural steel typically runs $3,500 to $6,500 per ton in current US markets. Simple wide-flange warehouse frames sit at the lower end. Complex moment-frame buildings with heavy weld requirements, specialty coatings, or high-seismic detailing push toward the upper end. Erection usually adds another $1,500 to $3,500 per ton depending on project height, site access, and crane requirements. These ranges are for 2025-2026. Pricing varies by region and by local shop market conditions, which is exactly why zip code-based pricing matters on every estimate we run.

Most commercial steel projects come back in 24-48 hours. High-rise buildings, complex industrial structures, bridge work, typically 5 to 7 business days. Send us your drawings and we'll give you a firm delivery commitment within 30 minutes of reviewing the scope. Rush options exist if you're against a hard deadline. Just say so when you send the plans.

Yes. Always. They're different line items on every estimate we deliver. Your fabricator needs to know what he's building. Your erector needs to know what he's putting up. Bundling them into one number makes it harder to negotiate, harder to value engineer, and harder to track actual costs once the project is running. We don't bundle them. Ever.

S-sheets, connection details, project specs, and any existing bid packages. Revit or Tekla models work if you have them. PDFs are fine. Send whatever you have and we'll confirm within 30 minutes if anything additional is needed. If drawings are still in progress, send what exists. We'll let you know what's missing to finalize the numbers.

All structural members with sizes and linear footage, tonnage calculations by member type, connection hardware (bolts, anchor rods, base plates, shims), deck quantities, handrail and stair components, embed plates, and miscellaneous metals. We include an estimated waste factor and flag anything that may require special procurement lead time or that isn't clearly specified in the drawings. Nothing gets left as a lump sum allowance you'd have to figure out later.

Yes. PEMBs, conventional structural steel, and mixed systems are all in scope. PEMBs use a different estimating methodology from conventional steel and we apply it correctly. If you're comparing PEMB versus conventional for the same project, we can price both so you have a real basis for the decision before you commit to a structural system.

Rebar quantity takeoffs with bar sizes, bending information, and lap splice locations are standard on every rebar estimate. For projects needing full shop drawing-level detail, we prepare bar bending schedules in standard fabricator format. Our rebar team uses AutoCAD, Rebar CAD, and Tekla for complex reinforcing steel work. If you need it, we do it.

PlanSwift and Bluebeam Revu for digital takeoff. RSMeans plus our own updated regional cost databases for pricing. Tekla and Revit for BIM projects where model-based quantification applies. Everything delivered in Excel. Nothing proprietary on your end to open it, nothing special required. Just a spreadsheet with every line item labeled and ready to use.

All states. We've run steel estimates across every region of the country. Where the project is located just changes the pricing inputs. Ironworker labor rates, shop rates, material delivery costs all pulled from local data for your specific zip code. Not national averages. Actual local market conditions.

Send us your structural drawings. We review them, confirm scope, and get you a quote the same day in most cases. Steel estimate typically ready within 24-48 hours from there. No complicated onboarding. No extended back-and-forth before things get moving. Send the drawings and we'll handle the rest.

Get Your Steel Scope Estimated Right

Drop your structural drawings in and we'll take it from there. Division 05 steel takeoffs with fabrication costs, erection costs, connection schedules, and every miscellaneous metals item accounted for. Delivered in 24-48 hours on most projects.

Commercial steel frame, heavy industrial facility, bridge structure, residential steel scope. It doesn't matter what the project is. We get you numbers you can actually bid on. AISC-certified estimators, current US market pricing, zip code-level accuracy. Every time.

Steel estimates done wrong cost you in two directions. Too high and you don't get the job. Too low and the job eats your margin. Neither works. Our steel estimating services have helped hundreds of contractors and fabricators across all states bid more accurately and protect their profitability. The numbers have to be right. We make sure they are.

Questions before you send drawings? Call us. We respond fast during business hours and most quotes come back same day.