40x40 Steel Building, Square Footprint With Room to Turn Equipment
1,600 sq ft clear-span shell at Northcraft’s full C-channel width — starting at $20,800, delivered.
50-Year Paint Warranty, 50-Year Rust Perforation Warranty, 60-Year Structural Warranty, and Lifetime Warranty on Hardware — all transferable to the next property owner.
Get Your Customized Quote
- No obligation — we’ll send the price, not a salesperson to your door.
- Engineered drawings stamped for your state.
- 60-Year Limited Structural, 50-Year Limited Paint, 50-Year Limited Rust Perforation, and Lifetime Limited Hardware warranties.
- Delivered nationwide, all 50 states.
C-Channel Clear Span • 40’ Wide, No Interior Posts • 60yr Limited Structural Warranty • Nationwide Delivery
40x40 Steel Building Price
$20,800 and up
C-channel framing, 10’ eave height basis, standard snow and wind loads.
Included
- • Stamped, engineered building drawings for your state
- • All primary building components
- • Freight to your site
Not included
- • Doors and windows
- • Insulation
- • Concrete or foundation work
- • Erection
Building specs
- • Framing type: C-channel solid frame, 10-16 gauge steel
- • Roof / wall panels: 26-gauge and heavier available
- • Roof pitch: Up to 8/12
- • Coating: Galvalume AZ55 on all primary and secondary framing
- • Hardware: Stainless steel hardware with a neoprene washer
- • Trim package: Full trim package included
What moves the price
- • Eave height above the 10’ basis
- • Ground snow load above 35 psf
- • Wind load above 110 mph
- • Areas with high seismic activity
This is a starting price, not a binding quote — your exact number depends on your state’s code requirements, site conditions, and what the building has to carry. We confirm the real number with stamped engineering before you sign anything.
What a 40x40 Footprint Actually Looks Like
Drawn to scale from the same specification the price above comes from. Door, window and interior layout aren’t shown because every Northcraft building is engineered to your plan — what’s fixed at this size is the footprint, the clear span and the eave height.
What Fits in a 40x40 Footprint
1,600 square feet, clear span, no interior columns, and square — Northcraft’s widest C-channel span in both directions.
Square Shop With Turning Room
40 feet of clear-span width in both directions gives trucks, tractors, and trailers room to turn inside the building instead of backing straight in and out — a real advantage over a long, narrow footprint at the same square footage.
Four-Bay Garage
1,600 square feet fits four vehicles across the 40-foot width with room between bays, all under one clear-span roof with zero interior posts.
Ag Equipment Building
Combines, sprayers, and other wide equipment need width more than depth to maneuver — a square 40x40 gives that room without the extra length (and extra cost) of a longer building.
Multi-Use Shop and Storage
Even proportions split cleanly into work and storage zones without leaving an awkward leftover strip the way a long, narrow rectangle can.
Using a 40x40 as a Shop
1,600 square feet at the full 40-foot clear span, square. The width is the point at this size: you can pull a vehicle and trailer in at an angle, or work around a machine from every side, without designing around a post you cannot move.
Square also means the shortest walk to any wall, which is why this footprint reads bigger in use than its area suggests against a long, narrow building of the same square footage.
Two things worth settling before engineering rather than after, because both are far cheaper to change on paper:
- Approach angle for the widest thing you own. Forty feet of clear width is only useful if the door lets you use it. Size the opening to the widest load, not to the elevation.
- Eave height, if a lift is in the plan. Lifts need more headroom than a standard 10-foot eave gives. Name the model early and we will price the eave that clears it.
What a 40x40 Costs Beyond the Building
$20,800 covers stamped engineering drawings, the building components and freight. It does not cover concrete. 1,600 square feet at a full 40-foot width is a wide screed - wide enough that most crews will set intermediate screed rails rather than pull the whole span in one go.
Which is a scheduling and crew-size question, not a number we can publish. Your cost is decided by frost depth, existing grade, how far the trucks drive and what reinforcement your engineer specifies.
Two or three local quotes for 1,600 square feet with thickened edges will settle it. Your stamped drawings include the anchor-bolt layout and we send it to the contractor so the bolts land right the first time.
The other items priced separately: doors and windows, insulation, and erection.
Why Length, Not Width, Is the Cheap Way to Grow From Here
At 1600 square feet, $20,800 works out to $13.00 per square foot. Because 40 feet already sits at the top of what Northcraft’s C-channel system spans, adding length from here is just more of the same frame repeated down the building — 40x60 drops to $11.58/sq ft and 40x100 to $9.88/sq ft, with no change in the underlying engineering. Adding width instead is a different story: the next step past 40 feet means moving to I-beam framing, and that step carries a real per-square-foot premium of its own — 50x50, Northcraft’s smallest I-beam size, runs $11.92per square foot, actually higher than 40x100’s $9.88 despite 40x100 having more total floor space. Whenever 40 feet of width genuinely covers what you need, extending length is the cheaper direction to grow every time.
A 1,600-square-foot slab is a meaningfully bigger pour than Northcraft’s smaller sizes and a real commercial-grade job for a local contractor — priced against the stamped engineering drawings, not off a generic per-square-foot slab estimate. Foundation work is priced separately from the building price and available on request. On freight, this footprint’s equipment- turning advantage cuts both ways — see the FAQ below on what it means for the delivery vehicle, not just what goes inside once the building is up.
The Other Square Option, Briefly
40x40 isn’t Northcraft’s only square footprint — 30x30 is the smaller one. The trade is straightforward: 30x30 costs less in total but gives up 10 feet of width in both directions, meaning less of the C-channel system’s full turning room described above. If your equipment genuinely needs the full 40 feet to maneuver, that’s not a trade worth making for the savings.
Backed By Real Warranties
YEAR LIMITED PAINT WARRANTY
YEAR LIMITED RUST PERFORATION WARRANTY
YEAR LIMITED STRUCTURAL WARRANTY
LIMITED HARDWARE WARRANTY
All four warranties are transferable to the next property owner. Every building ships with code-compliant stamped engineering for the delivery state.
* Warranty coverage is subject to applicable warranty terms, conditions, limitations, and exclusions. Complete warranty details are provided during the purchase process and included within the applicable purchase documentation.
Frequently Asked Questions
What does a 40x40 steel building cost?
Northcraft's published floor for a 40x40 is $20,800, delivered, at a 10-foot eave height with standard loads (ground snow to 35 lb, wind to 110 mph). That covers stamped engineering drawings, the building components, and freight — not doors, windows, insulation, concrete, or erection.
How much does a concrete slab cost for a 40x40 metal building?
Northcraft prices foundation work separately (that service is available — ask for it in your quote request) and we don't publish a slab price. 1,600 square feet at a full 40-foot width is a wide screed - most crews set intermediate rails rather than pull the whole span at once, which is a crew-size question rather than a fixed cost. Your number comes from frost depth, existing grade, delivery distance and the reinforcement your engineer specifies. Two or three local quotes will settle it.
Is a 40x40 metal building the same as a 40x40 steel building?
In everyday use, yes — most buyers say "metal building" and "steel building" interchangeably, and we answer to both. The distinction worth caring about is the frame, not the word. A solid frame like the C-channel in a 40x40 is a different structure from a hollow tube frame, which is what most of the cheapest advertised carport-style buildings use. Two buildings can both be sold as a "40x40 metal building" and not be comparable products.
Why does a square 40x40 footprint help with equipment turning radius?
40 feet is the widest clear span Northcraft builds in C-channel framing, so a 40x40 gives you that full width in both directions with zero interior columns. Wide equipment — tractors, combines, trucks with trailers — needs open width to turn around inside the building, not just depth to park in a straight line. A long, narrow building of the same square footage doesn't give you that.
Is 40x40 still clear span, with no interior posts?
Yes — 40 feet is the widest clear span Northcraft builds in C-channel, so a 40x40 has zero interior columns across the full 1,600 square feet in every direction.
Do I need a permit for a 40x40 steel building?
Most jurisdictions require a permit for a structure this size. We provide the stamped engineering drawings your local building department will ask for.
Can I customize the building, or is 40x40 a fixed size?
Every Northcraft building is fully customized to your exact specifications — this isn't a catalog of fixed sizes. Bring your own dimensions, door and window placement, and requirements, and we'll engineer to those specs instead of a preset.
What's included in the price, and what isn't?
Included: stamped engineered drawings for your state, every structural and panel component, and freight to your site. Not included: doors and windows, concrete or foundation work, and erection — priced separately; those services are available.
What loads does the $20,800 floor assume, and what raises it?
The floor is based on ground snow load up to 35 lb per square foot and wind speed up to 110 mph. Eave height above the 10-foot basis, higher snow or wind ratings, and high seismic activity all move the price. C-channel buildings like this one are sized for light-commercial and residential use and typically don't carry collateral load (a crane, heavy mezzanine, sprinkler system) — that's mainly a consideration on Northcraft's I-beam buildings.
Can I erect a 40x40 myself, or do I need a crew?
At 40 feet of clear span, most buyers hire a professional erector or bring in an experienced crew — the components are heavier and the spans longer than Northcraft's smaller sizes. Our buyers' guide covers the real cost and time trade-off.
How long does a 40x40 building take from order to delivery?
Typically 45-60 days from order to delivery, depending on engineering review and current production volume. Your estimator confirms a real date range once your drawings are finalized.
Does the same turning-radius argument that helps equipment inside also apply to delivery?
It's worth thinking about the same way. A square lot with room on all sides makes it easier for the delivery vehicle carrying your steel package to arrive, maneuver, and unload than a tight, narrow driveway does — the exact same turning-room logic that makes 40x40 useful for wide equipment applies before the building is even standing. If your site access is tight, mention it to your estimator; it affects delivery scheduling more than it affects the building itself.
Get Your 40x40’ Customized Quote Today
Starting at $20,800, delivered and engineered for your state. No obligation.
Call: (888) 460-9294 | Email: Estimating@Northcraftsteel.com
Get Your Customized Quote