12×20 Garage Shed Plans Spacious Storage & Multi-Use
Durable 12×20 garage shed with 240 sq ft space, 8’x7′ opening, tall walls for tools, and versatile use as office or workshop.
$29.99 Original price was: $29.99.$19.99Current price is: $19.99.
Save 30%-50% vs pre-built sheds
Full material list & step-by-step instructions
Durable weather resistant design
Instant PDF download – Start build today
60-Day Money-back Guarantee
Description
Our comprehensive 12 x 20 garage shed DIY plans provide everything you need to build a spacious storage solution with 240 square feet of usable floor space. These detailed digital blueprints allow you to construct a shed large enough to park your vehicle with room to spare for additional storage. The plans include specifications for an extra-wide 8′ x 7′ ¼” opening, ensuring your car can enter and exit without risk of damage.
These DIY plans are versatile and adaptable to various needs. Whether you want to store lawn equipment, create a workshop, set up a home office, or design a creative studio, our digital plans provide the foundation for your project. The blueprints detail how to incorporate a convenient 2 feet 8 inches front door for easy access and include specifications for two square windows with 3′ 4″ sides to ensure ample natural lighting throughout your finished structure.
Our digital plans include complete instructions for building durable wooden walls that you can finish according to your personal preferences. The classic gable roof design featured in these plans not only enhances the aesthetic appeal but also provides excellent protection against the elements. With these comprehensive DIY blueprints, you’ll be able to construct a garage shed that adds both value and functionality to your property.
By following our detailed garage shed plans, you’ll create a sturdy and practical structure designed to withstand years of use while keeping your belongings safe and organized. These digital plans empower you to build the perfect blend of functionality, durability, and style at a fraction of the cost of pre-built structures.
Why Choose Our Shed Plans?
- DIY-Friendly Instructions: Perfect for builders of all skill levels
- Detailed materials list, cutting sheets, step-by-step instructions
- Instant Download: Get your plans immediately after purchase
- Clear 3D Visuals: Detailed renderings and diagrams for easy understanding
- Expert Build Support: Access to guidance during construction
- Material Efficiency: Optimized design reduces waste and saves money
- Multiple Size Options: Choose dimensions that fit your space and needs
- Satisfaction Guarantee: Tested and proven designs you can trust
Everything You Need to Build Your Dream Shed

Complete Plans
Features include detailed 3D diagrams, step-by-step instructions, and comprehensive guidance from foundation to roof.

Materials Guide
Complete shopping list, exact quantities needed, and detailed material specifications for efficient project planning.

Construction Details
Includes precise measurements, cut lists for all pieces, and detailed assembly diagrams for seamless construction.

Durability Features
Engineered with weather-resistant materials, robust structural design, and proven construction methods for lasting performance and protection.

Ventilation Features
Incorporates proper airflow design, strategic vent placement, and moisture control systems for optimal interior conditions.

Maintenance Design
Features easy-access panels, weather-resistant materials, and simplified repair solutions for long-term durability.
Additional information
Essential specifications and building details to help you plan and execute your shed project perfectly.

Cost | $17-$24 per square foot |
---|---|
Foundation type | Concrete and brick pavers |
Dificulty | Advanced |
Interior materials | Plywood sheathing |
Exterior materials | Plywood sheathing, clapboard siding, asphalt shingles |
Length | 20 |
Width | 12 |
Height | 12 |
Materials | Asphalt shingles, Glass, Plywood, Wood |
Roof | Gable |
Measurement system | Imperial |
What Our Customers Are Saying
Real builders share their success stories with our easy-to-follow shed plans, helping you build with confidence.
Frequently Asked Questions
The most popular shed styles include gable sheds with their classic roofs, barn sheds with their gambrel roofs and ample headspace, lean-to sheds with their simple single-sloped roofs, modern sheds with their sleek and minimalist exteriors, and craftsman sheds with their smooth roof lines and charming trim accents.
To determine the right shed size, consider what you'll be storing, the available space in your backyard, and whether you need room for future expansion. Measure your backyard carefully and think about how the shed will fit into the overall landscape.
Common shed foundation types include concrete slabs, gravel pads, concrete blocks with wooden skids, and poured concrete footers with wooden beams. The best foundation for your shed will depend on factors like the size and style of the shed, local climate and soil conditions, and your budget.
A good shed plan should include clear and detailed instructions with diagrams and illustrations, a comprehensive materials list with quantities and specifications, information on the required foundation and framing, and access to reliable customer support. It should also specify the necessary tools and materials, provide guidance on shed location and space planning, and offer options for customization and security features.
Yes we do offer. Browse our FREE starter shed plans to see what our free blueprints include.
- Detailed construction blueprints
- Complete materials list
- Complete cutting list
- Step-by-step instructions
- Foundation guidelines
- Cut lists
- 3D renderings
Yes, our plans are designed for DIY builders with basic construction knowledge. Most projects can be completed over a weekend using common tools. However, we always recommend seeking additional help. Not only will this allow you to complete the project more quickly, but it will also make the process much safer.
Essential tools include:
- Circular saw
- Drill/driver
- Level
- Measuring tape
- Hammer
- Speed square
A complete tool list comes with each plan.
LP SmartSide siding offers durability with a 50-year warranty and engineered wood construction. Vinyl siding provides low maintenance and weather resistance at an affordable price point. Cedar siding delivers natural beauty and insect resistance but comes at a premium cost. Metal siding ensures longevity and fire resistance with a modern aesthetic. Fiber cement combines extreme durability and fire resistance while maintaining a wood-like appearance.
A small shed up to 8x8 typically takes one to two days to complete. Medium-sized sheds between 8x12 and 10x12 require two to three days. Larger sheds of 12x16 or more need three to five days for construction. Site preparation and foundation installation usually add an additional day to the timeline.

60-day money-back guarantee if you’re not satisfied
Built and trusted by over 10,000 happy shed owners!

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