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12×20 Lean to 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
  • Diagrams for installing a gutter system
  • Ready-to-print plans for easy reference


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12x20 Garden shed facts and figures

12x20 lean to garden shed
12' W x 20' L x 9'-9 3/4" 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 Lean to Garden Shed Overview

Are you looking for a large garden shed that shows off brilliant modern design and comes with adaptive features to meet any lifestyle? This 12×20 facility with a lean-to roof is a great choice. 

With 240 square feet of open space, this garden shed offers plenty of room that you can customize to suit your needs. The shed comes with an ultra-wide 5-feet-4-inch door, which makes getting your ATVs, large tractors, garden tools, equipment, and other bulky items in and out a breeze. There is also a sturdy ramp to allow you to push wheeled machines and equipment into place with ease. 

Add hooks to hang garden hoes and shovels off the floor. 

Thanks to its versatile design, this shed can serve as a home office, tiny house, studio for music lessons, playroom for kids, barbershop, or even a massage therapy office. Two 40-inch-sided square windows have been installed to keep the inside illuminated and cozy throughout. 

Best of all, the shed has a simple design, making it easy to build. You can finish it to your liking, so it makes a statement in your yard. 

Why Build Your Own 12x20 Lean to 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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