18x20 Outdoor Garage

Looking for a compact yet spacious solution? Look no further!

This 18×20 steel garage with 12′ height is often chosen when vertical clearance matters more than extra floor space. The footprint stays compact, but the added height makes a difference for taller vehicles, equipment, or overhead storage. It works well for a single vehicle without feeling boxed in, and there’s still room to move around once the door is shut.

The vertical roof helps keep water and debris moving off instead of sitting, which matters even on smaller buildings over time. A full enclosure keeps everything protected, while the door and window layout keeps access simple and the interior from feeling closed off. If you’re planning a setup like this, LongStar Steel can review your site conditions and intended use to make sure the height and layout make sense before anything is finalized.

18×20 Outdoor Garage Specs:

• Building Type: Steel Garage

• Overall Size: 18′ W × 20′ L × 12′ H

• Total Covered Area: 360 sq. ft.

• Roof Style: Vertical Roof

• Roof Pitch: 4/12

• Installation Surface: Concrete

• Certification: Built to local wind and snow code requirements

• Frame Gauge: 14 GA Galvanized Steel

• Ends: Fully Enclosed

• Sides: Fully Enclosed

• Panel Orientation: Horizontal Wall Panels

• Roof Panels: 29 Gauge Steel, Charcoal (10-Year Panel Warranty)

• Wall Panels: 29 Gauge Steel, Ivory (10-Year Panel Warranty)

• Trim Color: White

• Wainscot: Rustic Red, 29 Gauge Steel

• Garage Door: (1) 10′ × 8′ Roll-Up Door

• Garage Door Color: Satin White

• Garage Door Location: Front Wall

• Walk-In Door: (1) 34″ × 80″ Steel Man Door

• Walk-In Door Location: Left Wall

• Windows: (2) 24″ × 36″ Steel Windows

• Window Location: Left Wall

• Ideal for single-vehicle storage, equipment storage, residential garage use, tall vehicle or equipment clearance