18x20 · Garage

18x20 metal garage

An 18x20 metal garage starts at $4,005 delivered and professionally installed. This size offers 360 sq ft of clear span space and includes engineered certification for local snow and wind codes.

18x20 metal garage — Gold Tier Structures
18x20 metal garage — delivered and professionally installed by Gold Tier Structures.

Starting price

$4,005

Delivery & professional installation included.

VerifiedBBB Accredited
CertifiedEngineered to Local Codes
Warranty20-Year Rust-Through
IncludedProfessional Install

Specifications

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The 18x20 metal garage offers a versatile and durable solution for your storage and workspace needs. With a footprint of 360 sq ft, this garage is designed to provide ample room for vehicles, equipment, or workshop space. Because the building exceeds 120 sq ft, a permit is typically required for installation, ensuring compliance with local regulations.

This metal garage features engineer certification for local snow and wind codes, offering confidence and safety regardless of your regional weather conditions. The structure includes quality framing options with 12-ga heavy duty or 14-ga standard gauge steel and sturdy 26-ga roof and wall panels designed for lasting performance. Starting at $4,005, this 18x20 metal garage is delivered and professionally installed, making the process straightforward and hassle-free.

GTS connects you with experienced local professionals and offers full selection assistance to tailor your garage to your exact requirements. Whether you need customized door and window configurations or prefer a specific roof style, this garage is adaptable to fit your needs.

18x20 Garage — Specifications & Options
Specification Detail
Dimensions 18' W × 20' L — 360 sq ft clear span
Leg height 8'–20' available
Roof style Regular, A-frame horizontal, A-frame vertical
Framing gauge 12-ga (heavy duty) or 14-ga (standard)
Panel gauge 26-ga roof and walls
Doors & windows Configurable: 10'×10' rollup doors, 36"×80" walk-in door, 30"×30" single-pane windows
Certification Engineer-certified to local snow & wind codes
Starting price From $4,005 — delivered & installed

Your price depends on your county. Get it in two minutes.

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Questions

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How long will it take to get my metal steel building delivered?
Lead times vary by region and current installation schedule in your area. Your sales rep can give you the most accurate estimate for your location.
What kind of warranty is offered?
Upgrade to 12-gauge framing for a 20-year rust-through warranty. Every building includes a 1-year workmanship warranty. Add the optional 100 MPH lifetime wind warranty for ultimate peace of mind. 10-year and 20-year paint warranties are also available to protect against fading, chalking, and peeling. Full details are provided in your contract.
How long does it take to install a metal steel building?
Installation time depends on the building’s size, design complexity, and crew availability in your area. Smaller garages typically go up in a few days to a week, while larger or more custom units can take several weeks. Once your order is placed, the scheduling team will contact you with a precise timeframe for your specific building.
Does the price include delivery and installation?
All prices include both delivery and professional installation unless clearly noted otherwise on your order.
Do I need a permit for my metal building?
Most areas require a permit for any structure larger than 120 sq ft, but requirements vary by location. Always verify exact rules with your local building department or HOA. Plans and calculations are provided when needed.
How long is my quote valid for?
Quotes are valid for one week, though prices can change with steel markets. Contact your sales rep for the latest pricing anytime.
How do these buildings handle heavy snow?
Every building is engineer-certified to local snow and wind loads, and framing is reinforced in snow regions.
What framing and panel gauge options are available for the 18x20 metal garage?
This garage offers framing in either 12-ga heavy duty or 14-ga standard gauge steel. The roof and walls use durable 26-ga panels to ensure long-lasting strength.
What door and window configurations can I choose for this garage size?
You can configure your garage with 10'×10' rollup doors, 36"×80" walk-in doors, and 30"×30" single-pane windows, allowing flexibility to match your specific use.

Want to see it before you price it? Configure size, doors, colors, and openings yourself.

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