Outdoor Metal Sheds
18x20 Metal Shed
SKU: GB1753
Starting at
$5,558*
Delivered & installed — final price varies by location.
*Accessories shown are not included in the base price
18' × 20' × 9'
360 sq ft · Vertical Roof
Check Your Area
Delivery, certifications & load requirements
This 18x20 metal shed gives you 360 sq. ft. of enclosed steel space for lawn equipment, garden tools, motorcycles, ATVs, storage bins or backyard work gear.
With a 9-foot height, vertical roof, standard walk-in door, 8x7 garage door and one window, this shed is easy to use day to day. Pull the mower through the garage door. Use the walk-in door when you just need a tool. The window gives the space some natural light, which matters if you’re using it for small repairs or weekend projects.
Shown in Tan with Earth Brown trim, this building has a clean look for a backyard, farm lot or rural property. You can change the size, colors, roof style, doors, windows, anchors, insulation and certified wind or snow options based on your property and local code needs.
Delivery and professional installation are included. Call Garage Buildings to get your 18x20 metal shed quote.
Technical Details
Specifications
| SKU | GB1753 |
| Area | 360 SQFT |
| Kits | No |
| Brand | Garage Buildings |
| Width | 18' |
| Height | 9' |
| Length | 20' |
| Windows | 1 |
| Best for | Mowers, tools, garden supplies, motorcycles, ATVs and backyard storage |
| Delivery | Free |
| Material | Galvanized Steel |
| Warranty | 20-Year Rust-Through |
| Roof Color | Burgundy |
| Roof Pitch | 3/12 |
| Roof Style | Vertical |
| Total area | 360 sq. ft |
| Trim Color | Burgundy |
| Wall Color | Tan |
| Frame Gauge | 14-Gauge (12-Gauge upgrade available) |
| Garage Door | 1 |
| Panel Gauge | 29-Gauge |
| Roof Length | 21' |
| Wall Panels | Horizontal |
| Design notes | Compact backyard footprint, clean Tan and Earth Brown finish, easy access for mowers and tools, good fit for homes, farms and rural properties |
| Installation | Free by our team of professional Installers |
| Intended use | Backyard storage, mowing shed, tool storage, garden supply storage, small equipment storage |
| Walk-in Door | 1 |
| Building type | Enclosed metal shed |
| Certification | Built to Local Code |
| Top use cases | Lawn mower storage, garden tool storage, motorcycle storage, ATV storage, backyard storage, farm utility shed, outdoor equipment storage, hobby storage, seasonal item storage |
| Included parts | Steel frame, roof panels, wall panels, trim, walk-in door, 8x7 garage door, standard window, anchors, hardware, delivery and installation |
| Panel Warranty | 10-Year Paneling Warranty |
| Framing Warranty | 20-Year Framing Warranty |
| Garage Door Size | (1) 8’x7′ Garage Door |
| Vehicle capacity | 1 small vehicle, mower or ATV plus storage space |
| Price Starts From | $5000, Prices vary by location, customization options |
| Main build details | Vertical roof, enclosed steel layout, 360 sq. ft. of storage, 9-foot height, walk-in door, 8x7 garage door, one window |
| Weather resistance | Built to protect tools, equipment and supplies from sun, rain, wind, debris and everyday outdoor exposure |
| Installation Surface | Concrete |
| Customization options | Additional doors, windows, insulation, color changes, roof upgrades, height changes, anchors, panel layout and certified wind or snow options |
Can't Find the Right Fit? Design Your 18x20 Metal Shed in 3D
Customize your 18x20 Metal Shed with different roof styles, colors, dimensions, garage doors, walk-in doors, windows, insulation, lean-tos, certification options, and other available upgrades.
Our free 3D Building Designer lets you personalize every detail, compare different layouts, and visualize your building before requesting a quote—helping you design the perfect structure for your property and needs.
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Low monthly payments with competitive rates through our financing partners. No early payoff penalties. Get approved in minutes.
See Financing OptionsRent-to-Own — No Credit Check
Bad credit? No credit? No problem. Get your building now and pay monthly. Our trusted RTO partners — EZPay Buildings (exclusive 48-month terms for renters), RTO National, and Heartland (up to 60 months) — offer no-credit-check, same-day approval for amounts up to $20,000.
Call For Free QuoteReady to Make the 18x20 Metal Shed Yours?
Get a personalized quote with your exact customizations — color, doors, windows, and more. It's free, fast, and there's zero obligation.
Got Questions? We've Got Answers
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Essential Resources
Before You Buy
Everything you need to make a confident decision on your metal building purchase.
Talk to a Building Specialist
Not sure about sizing, roof style, or options? Our team has 29+ years of experience and will help you find exactly what you need.