20×40 Building — METCO Metal Building Supply
800 Square Feet

20×40 Building

800 square feet where width is constrained. Two vehicles nose to tail, or one vehicle and a long workshop run. Common on properties where a 30' or 40'-wide building will not clear the side setback.

Get a Free Quote →📞 (252) 375-3651

20' clear span

No interior columns. Full floor area usable.

800 sq ft

Two bays deep on a narrow footprint

Roll-formed locally

Panels cut from raw coil at our Greenville NC plant.

Free delivery

Delivery and installation included within 100 miles.

Rent-to-own

No credit check. Delivered now, paid monthly.

Certified available

Wind and snow-load drawings where your county requires them.

What fits in a 20×40

Two vehicles in tandem, a long workshop, or materials and trailer storage. At 800 square feet with a 20' clear span, there are no interior columns to design around — the roof load carries to the exterior columns, so the entire floor area is usable and stays usable if you reconfigure later.

Choosing your leg height

12' legs. At 40' long, plan the door on the gable end so you can pull straight through. Leg height is the specification customers most often wish they had gone bigger on, and it is the one thing that genuinely cannot be changed after installation. If you are between two heights and the price difference is manageable, take the taller one.

Roof style at this size

At 40' long, we strongly recommend a vertical roof. Panels run top to bottom so rain, leaves and snow shed off the building rather than collecting in horizontal seams. On longer buildings a regular roof accumulates debris in the valleys and that is where problems start.

Specifications

Width
20'
Length
40'
Floor area
800 sq ft
Leg heights
9' – 16'
Panel gauge
29-gauge standard, 26-gauge upgrade
Roof options
Vertical recommended

Common Questions

How much does a 20×40 metal building cost?

Price depends on leg height, roof style, how many doors and windows you add, whether your county requires certification, and current steel coil pricing. We roll-form our own panels, so we quote from today's coil cost rather than a fixed list that goes stale. Call (252) 375-3651 or send the quote form for a real number within 24 hours.

How many square feet is a 20x40 building?

800 square feet. Because the 20' span is clear — no interior columns — all of that area is usable floor space, and it stays usable if you change the layout later.

What leg height should I choose for a 20x40?

12' legs. At 40' long, plan the door on the gable end so you can pull straight through. Leg height cannot be increased after installation, so it is the specification worth being generous on.

Do I need a permit for a 20x40 building?

Most counties across NC, SC and VA require a permit for a permanent structure of this size on a foundation, and coastal counties add wind-load requirements. Requirements vary by county — check with your building department, and we will supply certified engineered drawings when they ask for them.

Can I get a 20x40 with no credit check?

Yes. Our rent-to-own program has no credit check and no bank involvement. You take delivery and pay monthly, with the option to pay off early and reduce your total cost.

Related

20×30 Building30×40 BuildingMetal Shop BuildingsMetal Storage Buildings

Get a Real Number in 24 Hours

Tell us the size, your county and what you are storing. We quote from current steel pricing — no obligation, and we will tell you if a different size suits you better.

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