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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.

Original price was: $29.99.Current 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

Difficulty: Advanced Duration: 5 days

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

What are the most popular shed styles?

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.

What size shed do I need?

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.

What are the different types of shed foundations?

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.

What should I look for in a shed plan?

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.

Do you offer free shed plans?

Yes we do offer. Browse our FREE starter shed plans to see what our free blueprints include.

What's included in your shed plans package?

Detailed construction blueprints
Complete materials list
Complete cutting list
Step-by-step instructions
Foundation guidelines
Cut lists
3D renderings

Can I build the shed myself using these plans?

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.

What tools do I need to build the shed?

Essential tools include:

Circular saw
Drill/driver
Level
Measuring tape
Hammer
Speed square

A complete tool list comes with each plan.

What exterior materials are best for my shed?

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.

How long does it take to build a shed?

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.