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12×18 Gable garden shed plan

  • Uses: storage, workshop, studio, tiny house, office
  • Full materials list, including hardware
  • Full cut list for the lumberyard
  • Easy step-by-step instructions 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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12x18 Garden shed facts and figures

12x18 gable garden shed
12' W x 18" L x 11'-6" H
Materials Cost:
$17-$24 per square foot
Plywood sheathing, clapboard siding, asphalt shingles
Roof type:
216 square feet
Instant PDF download
Plywood sheathing
Choice of paint or stain

12x18 Garden Shed Overview

It is with no doubt that a yard littered with lawn care machines, dirty bikes, sports gear, and toys is unsightly. If you want to improve the appeal of your disorganized yard, this 12×18 garden shed with a gable roof can be the perfect solution. 

With 216 square feet of floor space, this garden shed offers plenty of room for your lawn mowers, ATVs, wheelbarrows, bags of fertilizer, pesticides, rototillers, power tools, and other garden supplies. The shed’s 7-feet tall sidewalls give you plenty of height and convenient storage space for rakes, ladders, shovels, garden hoes, and more. You can also take advantage of the gable roof to create additional loft storage space or hand small garden tools.

No matter what garden tools and equipment you want to keep in this shed, you will quickly get them in and out — the shed has a 64-inch double-wide door. The shed is also fitted with 40-inch-sided windows on the sides to keep the inside illuminated while creating an illusion of openness. Its overall design makes it a suitable option for setting up a home office, backyard workshop, barbershop, or man’s cave. You just have to furnish and finish it to suit the purported use. 

The shed is built using robust pressure-treated lumber and on a reinforced platform, so you can trust it to serve you for years. To make a bold statement with the shed, finish or paint it to match other structures in your yard. 

Why Build Your Own 12x18 Gable Garden Shed?


DIY and Save Up to $3.000

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 $3.000.


216 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.

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

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