SteelCarports.com
Custom steel building being configured in a 3D designer
Custom builds · from
$8,903
Custom Metal Buildings

If you can spec it, we can build it.

Every standard size we sell is really just a starting point — a common configuration we've priced for convenience. But steel doesn't care about catalog sizes. Width, length, and eave height are yours to set down to the inch, and from there you choose the roof style, the frame, the color, and every opening: roll-up doors, walk doors with or without windows, framed openings, lean-tos, wainscot. If the build in your head isn't on a page, this is the page for it.

Custom isn't more complicated — it's just your building instead of a template. Tell us the footprint and what goes inside, and we engineer the frame to your county's loads and quote it itemized, so you see exactly what each choice adds. A wider clear span, a taller eave, a heavier gauge, an extra door — each moves the number in a direction we can explain up front. Factory-direct, stamped for permitting, and built to the spec you actually need.

(833) 647-8335
Price-beat guarantee
Free delivery & install · 40 states
20-year rust warranty
Factory-direct — no middleman
Starting points to customize

Start from a size, then make it yours.

Every model here is a jumping-off point — change the dimensions, roof, doors, and color, or start from a blank footprint entirely. Nothing is fixed.

Building isn't on the list?

That's what custom is for. Give a specialist your dimensions and what the building's for, and we'll design and price it from scratch — engineered and stamped for your site.

What you can change

Every dimension, every opening, your call.

Custom means the whole building bends to your plan, not the other way around. Here's what's yours to decide — and roughly what the big choices do to the price.

01
Size to the inch

Width, length, and eave height set exactly where you want them — not rounded to the nearest catalog size.

02
Roof style

Regular, A-frame, gambrel/colonial, or vertical — matched to your look and your weather, at the price each carries.

03
Frame & gauge

Lighter tubular for modest spans, heavier red-iron rigid frame for wide clear spans and higher loads.

04
Doors, your way

Roll-up garage doors, walk-in doors with or without windows, and framed openings — placed where the workflow needs them.

05
Windows & daylight

Add windows in the sizes and spots that suit the use, from a shop's few to a home shell's many.

06
Lean-tos & wainscot

Attach covered side space with a lean-to, or dress the lower walls with a two-tone wainscot accent.

What each choice adds

Custom is transparent — every option has a price.

Customizing doesn't mean a mystery quote. Each addition moves the number in a direction we itemize, so you build to a budget you can see. The common levers:

01

Size & clear span

The biggest driver — more width, length, and especially clear span means more steel and heavier framing.

02

Doors

Roll-up/overhead doors run a wide range by size; walk-in doors and framed openings each add a set amount. Most kits don't include doors by default.

03

Windows

Each window adds a modest, predictable amount — you choose how many and where without guessing at the cost.

04

Eave, gauge & roof

A taller eave, heavier gauge, or a vertical roof each step the price up for the capability they add. We show it line by line.

Popular starting points

Where custom builds begin

There's no single “custom size” — every build is designed to your spec. The sizes here are popular starting points you can stretch, shrink, or reconfigure in any direction.

Pick one to riff on, or start from a blank footprint. Search or scroll the sizes below, hover any one for what it fits, the SKU, and the price — then tell a specialist what you actually need.

The quote comes back itemized, so you see exactly what your size, doors, roof, and options add before you commit.

20′x20′ custom metal buildingSKU: SC86

20′x20′

Starting at
$8,903
  • A common configuration you can customize in any direction
  • Light manufacturing floor with utility runs
  • Also great for fleet parking.
Two ways to pay

Own it sooner, pay it monthly.

However you spec it, we make paying for it easy — financing from 6.9% APR with a little down, or no-credit-check Rent-to-Own on smaller builds to take delivery now and pay monthly.

Custom steel building delivered and installed to spec
Delivery & installation, included

Your spec, engineered and raised.

Once you've dialed in the design, we engineer it to your county's loads, stamp the drawings for permitting, and our crew erects it on your prepared site. A slab is recommended for most enclosed custom builds; we'll advise on the foundation your design needs.

  • Anchors for concrete, asphalt, or ground — included
  • Certified builds: engineer-stamped for your county's wind & snow loads
  • 12- or 14-gauge galvanized steel — carries our 20-year rust warranty
  • Factory-direct pricing with no middleman markup
Free install · 40 states
Reviews

Owners say it best.

Real, verified Google reviews from owners who bought their building from us, straight from our business profile.

View all reviews
We are building a barndominium and they delivered the shell on schedule. Our contractor said the framing was straighter than most stick-built shells he sees.
P
Priya & Dave L.
Bend, OR
Loafing shed for the horses showed up exactly when they said it would. The crew leveled and anchored on uneven ground and didn't try to charge extra.
G
Greg H.
Bowling Green, KY
Hurricane-rated anchors and engineer-stamped drawings were ready when our county asked. Permit went through the first time.
T
Tonya W.
Lakeland, FL
Custom FAQ

Answers before you buy.

Have a build in mind that isn't on any page? Describe it to a specialist and we'll design it.

(833) 647-8335