50x50 Steel Building, Northcraft’s Entry Point Into I-Beam Framing
2,500 sq ft clear-span shell, rigid I-beam frame — starting at $29,800, 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.
I-Beam Rigid Frame • 50’ Clear Span • 60yr Limited Structural Warranty • Nationwide Delivery
50x50 Steel Building Price
$29,800 and up
I-beam framing, 12’ 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: Rigid frame I-beam, ASTM A992 Grade 50 steel yield strength
- • Roof / wall panels: 26-gauge and heavier available
- • Roof pitch: Up to 8/12
- • Coating: Galvalume AZ55 on secondary framing (girts & purlins); primary I-beam frame hot-dip galvanized, gray painted primer
- • Hardware: Stainless steel hardware with a neoprene washer
- • Trim package: Full trim package included
What moves the price
- • Eave height above the 12’ basis
- • Ground snow load above 35 psf
- • Wind load above 110 mph
- • Areas with high seismic activity
- • Collateral load requirements
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 50x50 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 50x50 Footprint
2,500 square feet, clear span, no interior columns — Northcraft’s smallest I-beam building.
Commercial or Industrial Shop
2,500 square feet of clear-span floor, still with zero interior columns — I-beam rigid frame construction spans just as open as Northcraft's C-channel sizes, at a wider footprint.
Distribution or Warehouse Space
A square layout that works equally well for racked storage, a loading area, or a mixed-use operation without wasted corners.
Ag Operation at Scale
Room for a full line of equipment, bulk storage, and a work bay — a step up from Northcraft's largest C-channel sizes for operations that have outgrown them.
Manufacturing Facility
The heavier I-beam frame is built to carry more than a light-commercial building — a real consideration if your operation involves overhead equipment (see the collateral load question below).
Using a 50x50 as a Shop
2,500 square feet at a 50-foot clear span on I-beam framing, with a 12-foot eave. The extra span and the extra two feet of height are the reason to choose this over a similarly sized C-channel building, not the floor area.
I-beam is also where collateral load becomes a real option — a crane, a mezzanine, a sprinkler system. If any of those are in the plan, say so before engineering, because they change the frame rather than being added to it.
Two things worth settling before engineering rather than after, because both are far cheaper to change on paper:
- Collateral load, while it is still a specification. I-beam is where a crane, mezzanine or sprinkler system becomes genuinely practical. Raise it before engineering and it is designed in; raise it after and the frame has to change.
- Door sizes against the equipment. At a 50-foot span the doors are usually the constraint, not the floor. Size them to what has to enter, not to the elevation.
What Northcraft’s I-Beam Entry Point Actually Costs
At 2500 square feet, $29,800 works out to $11.92 per square foot. Set beside 40x100 — Northcraft’s largest C-channel size at 4000 square feet for $39,500 — 50x50 is both smaller and, per square foot, more expensive at $9.88 versus $11.92. That gap is the real, honest cost of the I-beam system itself, not a markup: heavier framing built to span past the 40-foot limit of C-channel carries its own price, independent of floor area.
Foundation for a 2,500-square-foot square footprint is a substantial commercial pour, priced separately from Northcraft’s building price — that service is available (see “What’s included” above) — reinforcement requirements typically step up along with the heavier frame it supports, so confirm the engineered slab spec with your foundation contractor rather than assuming a lighter-duty pour will do. Freight and erection both require crane support at this scale (see the FAQ above) — plan site access accordingly.
Where the I-Beam Premium Pays for Itself
Once you’re past the initial jump into I-beam, growing further gets more efficient, not less: expanding from 50x50 to 50x100 costs $7.92 for each additional square foot — see the FAQ above for what that means if you might need more room down the road.
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 50x50 steel building cost?
Northcraft's published floor for a 50x50 is $29,800, delivered, at a 12-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 50x50 metal building?
Northcraft prices foundation work separately (that service is available — ask for it in your quote request) and doesn't publish a slab price - a figure that's right in one county is wrong in the next. For 2,500 square feet, what moves it is local: frost depth, how level your pad already is, delivery distance, reinforcement and finish. Get two or three local quotes for 2,500 square feet with a thickened perimeter where the building anchors down. Your stamped drawings include the anchor-bolt layout your concrete contractor needs, and we send it to them directly.
Is a 50x50 metal building the same as a 50x50 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 50x50 at this size is I-beam framed, which is a different structure from the hollow tube frames most of the cheapest advertised buildings use. Two buildings can both be sold as a "50x50 metal building" and not be comparable products.
Why does a 50x50 need I-beam instead of C-channel?
Width is what decides frame type. 40 feet is the widest clear span Northcraft builds in C-channel; anything wider needs the heavier I-beam rigid frame system to span the distance. At 50 feet wide, a 50x50 is Northcraft's entry point into I-beam — the eave-height basis also steps up from 10 feet to 12 feet at this frame type.
Is a 50x50 I-beam building still clear span, with no interior posts?
Yes. I-beam rigid frame construction is designed to span open, the same way Northcraft's C-channel buildings are — the frame type changes to handle the extra width, not the column-free layout.
What is collateral load, and does it apply to a 50x50?
Collateral load is the weight of anything hanging from or attached to the roof structure beyond the building itself — a crane system, a heavy mezzanine, a sprinkler system, ductwork. It's a genuine 'what moves the price' factor on Northcraft's I-beam buildings specifically, unlike lighter C-channel buildings where it typically doesn't apply. If your plans involve any of that, tell your estimator up front.
Do I need a permit for a 50x50 steel building?
Most jurisdictions require a permit for a structure this size, and commercial or industrial use often triggers additional review. We provide the stamped engineering drawings your local building department will ask for.
Can I customize the building, or is 50x50 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. On I-beam buildings, tell your estimator about any collateral load early — it's priced once your configuration is set, not off a generic number.
Do I need a professional erector for a 50x50 I-beam building?
Yes. I-beam rigid frame construction at this scale requires crane support and professional erection — this isn't a DIY-scale project.
How long does a 50x50 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.
Am I paying the I-beam premium twice if I go bigger than 50x50 later?
No — the opposite, in fact. The step from C-channel into I-beam is a one-time cost jump for the frame system itself (see the comparison above against 40x100). Once you're already in I-beam, adding more length from 50x50 up to 50x100 costs less per additional square foot than the initial jump into I-beam did. If you might need more than 2,500 square feet eventually, that's a real argument for starting your planning conversation at the larger size rather than assuming you'll simply add a second building later.
Get Your 50x50’ Customized Quote Today
Starting at $29,800, delivered and engineered for your state. No obligation.
Call: (888) 460-9294 | Email: Estimating@Northcraftsteel.com
Get Your Customized Quote