16x20 Carport: Metal Kits, Prices & What Fits
A 16x20 carport covers 320 square feet. It is the in-between width: wider than a standard 12-foot single carport, but narrower than the 18 to 20 feet that two cars need. That extra 4 feet is room for a wide truck with doors fully open, or a vehicle plus a mower, bikes or a tool bench along one side. Builders often list it as a 16x21 by roof length.
| Frame Size | 16' W x 20' L |
|---|---|
| Roof Length | 21' (overhangs the frame) |
| Covered Area | 320 sq ft |
| Leg Height | 6' standard, up to 16' |
| Vehicles | 1 vehicle |
| What Fits | 1 truck or SUV plus a mower, bikes or tools |
| Price | From $2,795 installed |
How Big Is A 16x20 Carport?
- Frame footprint: 16' x 20' (320 sq ft)
- Roof: usually 16' x 21' on regular and boxed-eave roofs
- Standard leg height: 6' to 8', with taller legs in 1-foot steps from most builders
- Framing: 14-gauge steel tubing standard, 12-gauge as an upgrade
What Fits Under A 16x20 Carport?
| Vehicle Or Use | Fits In A 16x20? | Notes |
|---|---|---|
| One car, SUV or pickup | Yes | About 4.5 ft of room on each side |
| Vehicle plus mower, ATV or bikes | Yes | Park to one side and use the other 5 to 6 ft |
| Dually or lifted truck | Yes | Extra width for wide mirrors and fender flares |
| Two cars | No | Two cars need about 18 to 20 ft of width |
| Long crew-cab pickup | Tight on length | Just over 20 ft long; consider 16x25 |
How Much Does A 16x20 Metal Carport Cost?
In our September 2026 price check, a certified 16' x 21' regular-roof carport with 8-foot legs was listed at $2,795, delivered and installed. It was rated for up to 130 mph winds and 30 psf snow.
Widths don't always price in a straight line. At another installer in the same check, an 18x20 regular-roof carport was advertised from $1,395 installed. Stock widths like 12, 18, 20 and 24 feet are the most common on price sheets, so a 16-foot width is sometimes priced as a custom size. Get quotes on both 16x20 and 18x20 before you choose.
What moves the price:
- Roof style: Regular roofs cost least, then boxed-eave, then vertical.
- Leg height: Taller legs for lifted trucks, trailers or roof racks add steel and cost.
- Sides and ends: A side panel on the storage side keeps rain off tools and equipment.
- Certification and site: Engineered drawings for your county, delivery zone and site grade all change the quote.
16x20 Vs. 12x20 Vs. 18x20
| Size | Covered Area | Best For |
|---|---|---|
| 12x20 | 240 sq ft | One car, SUV or pickup with standard door room |
| 16x20 | 320 sq ft | One wide vehicle, or a vehicle plus equipment |
| 18x20 | 360 sq ft | Two compact cars, tight, or one vehicle with lots of room |
16x20 Carport Kits
Most "16x20 carport kit" searches lead to the same metal carports builders install, since the industry calls its buildings kits. Some sellers also ship 16x20 kits for DIY assembly. An installed kit includes delivery, anchoring and, when you order it, certification for your county, which matters if you need a permit.
Concrete Slab And Anchors
Pour the slab to the frame: a 16x21 carport sits on a 16' x 20' pad because the extra foot of roof overhangs the frame. Builders use concrete anchors on slabs, rebar or ground anchors on dirt or gravel, and asphalt anchors on paved driveways.
Do You Need A Permit For A 16x20 Carport?
Probably. At 320 square feet, a 16x20 is above the 120- and 200-square-foot small-structure exemptions many local codes use. Check with your local building department before you order.
Compare Other Carport Sizes
For one vehicle with standard door room, see the 12x20 carport. For two cars, see the 20x20 carport. Every standard size is in the carport sizes guide.
Get Free 16x20 Carport Quotes
Tell us your size, roof style and site, and local metal carport builders will send free installed quotes for a 16x20 or 18x20.
16x20 Carport FAQs
Can Two Cars Fit In A 16x20 Carport?
Not comfortably. Two cars need about 18 to 20 feet of width to open doors. A 16x20 fits one vehicle with room for a mower, bikes or tools beside it.
How Much Does A 16x20 Metal Carport Cost?
In September 2026, a certified 16x21 regular-roof carport with 8-foot legs was listed at $2,795 installed. An 18x20 was advertised from $1,395 installed at another installer, so quote both widths.
What Is A 16x20 Carport Good For?
A wide truck or dually, a vehicle plus equipment, or a vehicle with extra room to open doors and load cargo on both sides.
What Size Slab Do I Need For A 16x20 Carport?
A 16' x 20' slab, matching the frame. Builders usually list it as a 16x21 because the roof overhangs by a foot.