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SKU: GB1738Up to 43% Off20x21 Metal Garage
Starting at$5,508*Final prices vary by location and customization options.
- Width
- 20'
- Length
- 21'
- Height
- 8'
- Roof
- Regular
- 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 20x21 Metal Garage
Need dependable enclosed storage without taking over your property? This 20x21 Metal Garage offers the right balance of compact size, durability, and everyday functionality. With 420 square feet of covered interior space, it is ideal for protecting vehicles, lawn equipment, motorcycles, tools, and seasonal storage items.
This model features a classic regular roof design, making it a cost-effective option for homeowners who want reliable steel protection with a clean traditional look. The included 8'x8' roll-up garage door provides easy front access for parking or moving equipment, while the separate walk-in entry door adds convenient daily access without opening the main bay.
Built with a strong galvanized steel frame and durable metal panels, this garage is engineered for long-term performance against weather, rust, and wear. Whether you need a backyard workshop, mower shed, hobby space, or enclosed storage building, this 20x21 garage delivers flexible value.
Customize your building with upgraded height, vertical roof panels, windows, extra doors, insulation options, and color choices to match your property.
Free delivery and professional installation available in many service areas. Call ☎ our building specialists to customize this building to suit your style. We’ll guide you every step of the way, provide you with a FREE quote, and deliver a structure that puts in the work for you and your most important things.
- 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 | 20' | Length | 21' |
|---|---|---|---|
| Height | 8' | Floor area | 420 sq ft |
| Capacity | 2 standard vehicles | Roof Style | Regular Roof |
| Roof Pitch | Approx. Rounded Regular Style | 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 × 36"×80" |
| Windows | 4 standard | Rust-through warranty | 20 years |
| Panel warranty | 10 years | Workmanship | 30 days |
| Installation | Free Installation on Your PAd | Service area | Nationwide |
| Brand | Garage Buildings | Style | Fully Enclosed Garage |
| Delivery | Free Delivery on Your Site | Openings | (1) 8'x8' Roll-up Door |
| Door Type | (1) Roll-Up Garage Door, (1) Walk-in Entry Door | Wall Type | Fully Enclosed Steel Panels |
| Roof Color | Pebble Beige | Trim Color | Barn Red |
| Wall Color | Pebble Beige | Intended Use | Garage Storage, Lawn Equipment Storage, Workshop, Utility Building |
| Building Type | Metal Garage | Coverage Area | 420 SQFT |
| Material Type | Steel | Top Use Cases | Car parking, Mower storage, Tool organization, Backyard workshop, Seasonal storage |
| Frame Material | Galvanized Steel | Included Parts | Steel frame, roof panels, wall panels, trim, hardware, anchors (varies) |
| 2D Floor Planner | Yes | Primary Material | Metal |
| Structure Design | Single Bay Garage with Front Roll-Up Door | Vehicle Capacity | 1 Vehicle / Compact Car / Motorcycle / Equipment |
| Design Highlights | Traditional roof style, strong steel frame, clean two-tone exterior | Weather Resistance | Rust resistant, Rain resistant, UV resistant, Wind resistant |
| Highlighted Features | Compact footprint, secure enclosed walls, separate walk-in access, affordable garage solution | Customization Options | Vertical roof upgrade, windows, extra doors, insulation, color changes, height upgrades |
| Length | 21' | ||
| Floor area | 420 sq ft | ||
| Roof Style | Regular Roof | ||
| Roof length | 21' | ||
| Frame | 14-gauge galvanized (12-ga upgrade) | ||
| Walls | Horizontal, fully enclosed | ||
| Anchoring | Braces & anchors on every leg | ||
| Walk-in door | 1 × 36"×80" | ||
| Rust-through warranty | 20 years | ||
| Workmanship | 30 days | ||
| Service area | Nationwide | ||
| Style | Fully Enclosed Garage | ||
| Openings | (1) 8'x8' Roll-up Door | ||
| Wall Type | Fully Enclosed Steel Panels | ||
| Trim Color | Barn Red | ||
| Intended Use | Garage Storage, Lawn Equipment Storage, Workshop, Utility Building | ||
| Coverage Area | 420 SQFT | ||
| Top Use Cases | Car parking, Mower storage, Tool organization, Backyard workshop, Seasonal storage | ||
| Included Parts | Steel frame, roof panels, wall panels, trim, hardware, anchors (varies) | ||
| Primary Material | Metal | ||
| Vehicle Capacity | 1 Vehicle / Compact Car / Motorcycle / Equipment | ||
| Weather Resistance | Rust resistant, Rain resistant, UV resistant, Wind resistant | ||
| Customization Options | Vertical roof upgrade, windows, extra doors, insulation, color changes, height upgrades |
Can't Find the Right Fit? Design Your 20x21 Metal Garage 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 20x21 Metal Garage – 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 20x21 Metal Garage
Is a 20x20 metal garage big enough for a car?
Yes. A 20x20 garage is commonly used for one standard vehicle with remaining space for tools, storage, or workbenches.
Can I use this garage for lawn equipment and storage?
Absolutely. It is a popular choice for mowers, ATVs, motorcycles, garden tools, and household overflow storage.
What is a regular roof garage?
A regular roof has rounded horizontal panels and is often the most budget-friendly option for areas with moderate weather conditions.
Can I upgrade this garage to a vertical roof?
Yes. Many buyers choose to upgrade to a vertical roof for improved water, snow, and debris runoff.
Does this building come installed?
Yes. Delivery and professional installation are typically included in service areas.
Can I customize the door sizes and colors?
Yes. Garage door sizes, walk-in doors, colors, height, and windows can usually be customized.
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.