SteelCarports.com
SteelCarports.com
Design in 3D (833) 647-8335
40x30 Commercial Carport
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: SC170

40′x30′ Commercial Carport

Starting at
$13,070
Financed
$177/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 40′x30′x10′ open commercial carport offers durable shelter for vehicles or equipment with a web truss roof design, protecting from the elements without the enclosure of walls.

At 40′ across, the span leaves usable floor on both sides of a center aisle. As configured there is no drive-in opening — that gets added and priced when you quote it. The most common thing we quote a 40′x30′x10′ for is a truck and boat side-by-side under one cover. It also gets ordered for drive-through firewood.

Most popular for truck and boat side-by-side under one cover

Building size

  • 40′Wide
  • 30′Long
  • 10′High
Total coverage1,200 sq ft

Building details

Frame gauge
14-gauge galvanized steel
Panel gauge
29-gauge steel
Workmanship warranty
30 days
Rust-through warranty
20 years
Delivery & installation
Included
What's it for

Same shell, very different jobs.

A 40′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.

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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

A level spot is enough. Concrete, asphalt and compacted ground all work, and the matching anchors for all three ship with the building. Mark out the full 40′ x 30′ footprint and check it for level before delivery day — uneven ground is the one thing that reliably slows an install down.

It is the leg height, not the tallest point. 10′ runs from the base rail to the eave, where the roof meets the 30′ sidewall; the ridge is higher again because of the roof pitch. For anything driving into a 40′ x 30′ x 10′, the door opening is the real limit anyway.

Yes. The 40′ x 30′ x 10′ is listed here as an open structure, but whether it closes in is settled at quote — along with door placement, openings and leg height. Doing it at order time is cheaper and cleaner than adding panels to a building that is already standing.

Delivery and professional installation are both in it — the crew sets the 40′ 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 $13,070 as the starting figure; options and your county's wind and snow certification move it.

The 20 years figure is rust-through on the frame, which is the structural cover and the one that matters over the life of a 40′ x 30′ building. Separately, the install itself is warranted 30 days, so anything that looks wrong when the crew leaves should be raised inside that window.

This page prices the 40′ x 30′ x 10′ as built, but width moves in 2-foot steps, length in 5-foot steps and leg height in 1-foot steps. Tell us the footprint you actually need and we price that build instead.

Two different parts. The frame is the tubing carrying the load of this 40′ x 30′ x 10′ — 14-gauge galvanized steel. The panels are the skin screwed to it, 29-gauge steel. Lower gauge number means thicker steel, so the frame is always the heavier of the two. Compare frame to frame across quotes; that is the number that decides how a building stands up.
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
$13,070
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
Call (833) 647-8335Design in 3D →
(833) 647-8335