Traditional Financing
Through our financing partnersLow monthly payments with competitive rates. Apply online and get a decision fast.
- Competitive rates & low monthly payments
- No early payoff penalties
- Get approved in minutes
SKU: GB1753Up to 43% Off18x20 Metal Shed
Starting at$5,558*Final prices vary by location and customization options.
- Width
- 18'
- Length
- 20'
- Height
- 9'
- Roof
- Vertical
- 20-year rust-through warranty
- Financing & RTO Available
- BBB A+ Accredited
- Since 1997 · 100K+ buildings
Check Your Area
Delivery, certifications & load requirements
Overview
About the 18x20 Metal Shed
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.
- Vertical roof built to local code3/12 pitch sheds rain and snow fast.
- 14-gauge frameGalvanized steel; 12-gauge upgrade available.
- Braces and anchorsOn every leg for added stability.
Product details
Specifications, Colors & Buying Guide
| Width | 18' | Length | 20' |
|---|---|---|---|
| Height | 9' | Floor area | 360 sq ft |
| Capacity | 2 standard vehicles | Roof Style | Vertical |
| Roof Pitch | 3/12 | Roof Length | 21' |
| Structure | Clear span | Frame | 14-gauge galvanized (12-ga upgrade) |
| Panels | 29-gauge | Walls | Horizontal, fully enclosed |
| Gable ends | Fully enclosed | Anchoring | Braces & anchors on every leg |
| Garage doors | 2 × 8'×8' | Walk-in Door | 1 |
| Windows | 1 | Rust-through warranty | 20 years |
| Panel Warranty | 10-Year Paneling Warranty | Workmanship | 30 days |
| Installation | Free by our team of professional Installers | Service area | Nationwide |
| Kits | No | Brand | Garage Buildings |
| Best for | Mowers, tools, garden supplies, motorcycles, ATVs and backyard storage | Delivery | Free |
| Material | Galvanized Steel | Warranty | 20-Year Rust-Through |
| Roof Color | Burgundy | 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 | 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 | Intended use | Backyard storage, mowing shed, tool storage, garden supply storage, small equipment storage |
| 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 |
| 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 |
| Length | 20' | ||
| Floor area | 360 sq ft | ||
| Roof Style | Vertical | ||
| Roof Length | 21' | ||
| Frame | 14-gauge galvanized (12-ga upgrade) | ||
| Walls | Horizontal, fully enclosed | ||
| Anchoring | Braces & anchors on every leg | ||
| Walk-in Door | 1 | ||
| Rust-through warranty | 20 years | ||
| Workmanship | 30 days | ||
| Service area | Nationwide | ||
| Brand | Garage Buildings | ||
| Delivery | Free | ||
| Warranty | 20-Year Rust-Through | ||
| Total area | 360 sq. ft | ||
| Wall Color | Tan | ||
| Garage Door | 1 | ||
| Wall Panels | Horizontal | ||
| Intended use | Backyard storage, mowing shed, tool storage, garden supply storage, small equipment storage | ||
| Certification | Built to Local Code | ||
| Included parts | Steel frame, roof panels, wall panels, trim, walk-in door, 8x7 garage door, standard window, anchors, hardware, delivery and installation | ||
| Garage Door Size | (1) 8’x7′ Garage Door | ||
| Price Starts From | $5000, Prices vary by location, customization options | ||
| Weather resistance | Built to protect tools, equipment and supplies from sun, rain, wind, debris and everyday outdoor exposure | ||
| 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 roof styles, colors, dimensions, doors, windows, insulation, lean-tos and certifications with our free 3D Building Designer before requesting a quote.
Flexible Payments
Affordable Payment Options
Two simple ways to pay for your 18x20 Metal Shed – with or without a credit check.
HFSFinancial
Rent-to-Own
Bad credit? No credit? No problem.- Up to
- $20,000
- Terms up to
- 60 mo
- Approval
- Same day
- EZPay Buildings48-month terms
- RTO NationalNo credit check
- HeartlandUp to 60 months
FAQ
Frequently Asked Questions about 18x20 Metal Shed
What can an 18x20 metal shed be used for?
An 18x20 metal shed works well for lawn mowers, garden tools, motorcycles, ATVs, storage bins, outdoor equipment, farm supplies and small backyard projects.
How much space does this 18x20 shed provide?
This shed gives you 360 sq. ft. of enclosed steel space. That gives you room for a mower or ATV with extra space for tools, shelves or garden supplies.
Does this shed include a garage door?
Yes. This 18x20 metal shed includes one 8x7 garage door, which makes it easier to move mowers, equipment and larger storage items in and out.
Does it have a walk-in door?
Yes. It has one standard walk-in door for daily access, so you don’t have to open the garage door every time you need a tool or supply.
Why is a vertical roof useful on a shed?
A vertical roof lets rain, snow, leaves and debris run off more easily than a basic roof style. It’s a good choice if you want better drainage and less roof cleanup.
Can I customize this 18x20 metal shed?
Yes. You can change the colors, size, roof style, doors, windows, anchors, insulation and certified wind or snow options to fit your property and local code needs.
Is delivery and installation included?
Yes. Delivery and professional installation are included with this 18x20 metal shed.
What warranties come with this shed?
This building includes a 20-year framing warranty, 10-year paneling warranty and 30-day workmanship guarantee.
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.