SteelCarports.com
SteelCarports.com
Design in 3D (833) 647-8335
20x20x12 Steel Building
Color
Optional — pick one or choose at quote
  • Free delivery & professional installation
  • Anchors for concrete, asphalt, or ground
  • 12- or 14-gauge galvanized steel
  • Certifiable to your county's wind & snow loads
  • 20-year rust warranty on the frame
  • Financing & no-credit-check Rent-to-Own
SKU: SC20

20′x20′x12′ Steel Building

Starting at
$13,408
Financed
$182/mo

Starting price — final cost varies by state, options, and any wind/snow certification.

Price-beat guarantee. Bring us a written quote for a comparable American-made building from any competitor — same gauge, same engineering, same install — and we'll beat it.

Call for Best Price: (833) 647-8335
Open the 3D Designer
At a glance

The build, by the numbers.

This 20′x20′ fully enclosed steel building with 12′ eave height features two attached lean-tos, a 10′x10′ roll-up door, and a walk-in door. It is perfect for secure storage or workspace.

The near-square footprint divides evenly, so you are not committed to a single long lane. No windows are specified, so daylight is something to raise at quote if you want it. Buyers most often order a 20′x20′x12′ steel building for a light manufacturing floor with utility runs. Second most common: fleet parking.

Most popular for light manufacturing floor with utility runs

Building size

  • 20′Wide
  • 20′Long
  • 12′High
Total coverage400 sq ft

Building details

Frame gauge
14-gauge galvanized steel
Panel gauge
29-gauge steel
Building type
Fully Enclosed main Building
Roll-up doors
(1) 10′x10′ Roll Up Door
Walk-in doors
(1) Walk-In Door
Enclosed ends
(1) End Closed
Enclosed sides
(1) Side Closed
Workmanship warranty
30 days
Rust-through warranty
20 years
Delivery & installation
Included
What's it for

Same shell, very different jobs.

A 20′x20′ gets specified differently depending on what goes in it — door placement, openings, leg height, whether it closes in. Tell us the job and we'll spec it to that instead of handing you a blank form.

Delivery & installation

What happens after you order.

01
Lock your price

We confirm your exact number for your ZIP and options, in writing — with our price-beat guarantee behind it.

02
Prep your site

Pick a level spot — concrete, asphalt, or ground. Anchors for all three are included.

03
We deliver & install

It arrives and goes up on your site, included in the price across 40 states. Nothing for you to assemble.

04
Backed for decades

Your steel frame carries a 20-year rust warranty from day one.

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Close to this size.

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Questions

Good to know.

A specialist can walk you through this exact build over the phone in a few minutes.

(833) 647-8335

For a closed building this size, yes. The pad wants to match the 20′ x 20′ footprint, be level, and be cured before delivery, because the walls of a 20′ x 20′ x 12′ seal down onto it and the door track depends on it being flat. Pour it yourself or have a local contractor do it ahead of the install date.

It is the leg height, not the tallest point. 12′ runs from the base rail to the eave, where the roof meets the 20′ sidewall; the ridge is higher again because of the roof pitch. For anything driving into a 20′ x 20′ x 12′, the door opening is the real limit anyway.

This one is specified with (1) 10′x10′ roll up door. That is the opening itself, so measure whatever has to drive through against the door rather than against the 20′ width. Door sizes are not fixed — if what you are parking is tight, say so on the quote, because adding or resizing an opening up front is cheaper and cleaner than cutting one in later.

The sheet for this build states (1) side closed fully enclosed main building (1) end closed. It also carries (1) Walk-In door. Anything about how it closes in — which ends, which sides, where the doors land — is settled on the quote, so if you need a different arrangement it does not have to be a special order.

Delivery and professional installation are both in it — the crew sets the 20′ x 20′ x 12′ on your site. What it does not cover is getting that site ready: leveling, and the concrete if you are pouring a pad. That happens before the crew arrives, by you or a local contractor. Treat $13,408 as the starting figure; options and your county's wind and snow certification move it.

Rust-through on the frame runs 20 years. Workmanship on the install runs 30 days. They are deliberately different lengths because they cover different risks — the steel of this 20′ x 20′ x 12′ degrading, versus how it went together on your site.

The 20′ x 20′ x 12′ shown here is one point on a range, not a fixed product. Width adjusts in 2-foot increments, length in 5-foot increments, leg height by the foot — so if you need a few more feet of 20′, that is a re-price rather than a different building.
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
Starting at
$13,408
Build your quote

Ready when you are.

Tell us what's going inside and we'll suggest a size to start from, then send back a real, same-day price.

Your building
Carport
Suggested size 18 × 26 × 8 ft — or choose one below
or
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(833) 647-8335