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12×20 Garden shed plan

  • Uses: storage, workshop, studio, pub, home office
  • Full materials list, including hardware
  • Full cut list for the lumberyard
  • Step-by-step blueprints for beginners
  • Color renderings to check your progress
  • Instructions for siting and installing the foundation
  • Guide for building windows and doors from scratch
  • Plans for decorative elements such as shutters and lattice
  • Diagrams for installing a gutter system
  • Ready-to-print plans for easy reference


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12x20 Garden shed facts and figures

12x20 garden shed
12'-1 1/2" W x 20'-1 1/2" L x 11'-6" H
Materials Cost:
$17-$24 per square foot
Plywood sheathing, clapboard siding, asphalt shingles
Roof type:
240 square feet
Instant PDF download
Plywood sheathing
Choice of paint or stain

12x20 Garden Shed Overview

This large-capacity 12×20 garden shed offers a perfect solution for organizing everything for severe gardeners and hobbyists with many landscaping tools and equipment. The shade integrates sturdy construction, classic looks, and functional design to serve multiple purposes. It offers a massive 240 square feet of floor space that can be used for storage, home office, pub, workshop, studio, or potting.

Gardeners can use it to keep virtually everything, including ATVs, lawnmowers, power tools, wheelbarrows, bikes, planters, rototillers, workbenches, and patio furniture. A 6-feet tall, 64 inches wide door is put in place to make it easier to move tools and equipment in and out.

The shed is fitted with square windows of 3 feet 1-inch sides, which lets in enough natural light to see everything you are working on clearly. Louvered vents are positioned at a reasonable height to ensure optimal ventilation, keeping your belongings free of dampness and potential rotting.

An asphalt shingle gable roof caps off the sturdy wooden walls for weather-tight construction to withstand the test of time. You can even paint the walls to protect them from bad weather and elements and boost the facility’s appearance.

Why Build Your Own 12x20 Gable Garden Shed?


DIY and Save Up to $3.500

Buying a ready-made shed from a retailer or hiring a carpenter to build one costs big bucks. Building a shed yourself can save you up to $3,500.


240 sq. ft. Extra Storage Space

With all that extra storage space, you can clear out a considerable amount of stuff in your house. Declutter your life and reclaim your home for rest and relaxation.


Increase Property Value

Wooden sheds are designed to last, and an attractive one will boost your property value. Future buyers will love this addition as much as you do.

Compare Free vs Premium Plan

Check out the main benefits of our premium shed plans. Compare the differences and decide for yourself.

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