SteelCarports.com
20x30x10 Garage with Lean To
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: SC74

20′x30′x10′ Garage with Lean To

Starting at
$13,459
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
At a glance

The build, by the numbers.

This 20′x30′x10′ A-Frame Garage with Lean-To is fully enclosed in a vertical colonial style, including (1) 9′x8′ door, (1) walk-in door, and (1) 24" window.

The openings are framed but the doors themselves are not part of it, so door type and operation get specified at quote. 20′x30′x10′ is a size that usually goes up as a small contractor's shop with framed-opening front. Second most common: tenant-improvement-ready space.

Most popular for small contractor's shop with framed-opening front

Building size

  • 20′Wide
  • 30′Long
  • 10′High
Total coverage600 sq ft

Building details

Frame gauge
14-gauge galvanized steel
Panel gauge
29-gauge steel
Sides
Fully Enclosed
Walk-in doors
(1) Walk-In Door
Windows
(1) 24"x36" Window
Framed openings
(1) 8′x7′ Framed Opening
Arch-cut ends
(2) Arch Cut Ends
Workmanship warranty
30 days
Rust-through warranty
20 years
Delivery & installation
Included
What's it for

Same shell, very different jobs.

A 20′x30′ 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.

Similar products

Close to this size.

Questions

Good to know.

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

Plan on a cured, level concrete slab poured to the full 20′ x 30′ footprint. On an enclosed build the walls seal against the pad and the doors ride on it, so the slab does more than hold anchors. Have it poured square and cured before your install date — the crew sets the 20′ x 30′ x 10′ on whatever is there.

On this 20′ x 30′ x 10′ the 10′ is eave height — base rail up to where the roof meets the sidewall, which is the height of the legs. The peak sits higher because the roof is pitched. Check clearance against the eave and against the door opening, never against the peak.

A framed opening is a door-sized gap with the structural framing already built around it and no door hung in it. You get the opening; you decide later whether to hang a door there or leave it open for drive-through access. This build is specified with (1) 8′x7′ framed opening.

The sheet for this build states fully enclosed. 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 30′ x 10′ 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 $13,459 as the starting figure; options and your county's wind and snow certification move it.

Two covers on two clocks. The steel frame under this 20′ x 30′ x 10′ carries a 20 years rust-through warranty. Workmanship is covered 30 days from installation — the window for raising anything the crew got wrong on the day. Corrosion is the long one; install quality is the short one.

It is not a fixed size. Starting from this 20′ x 30′, width changes in 2-foot steps and length in 5-foot steps, and the 10′ legs move a foot at a time. Give us the size you need and we quote that one.
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
$13,459
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
(833) 647-8335