11 Free Greenhouse Plans

Greenhouse Plans You Can Download Today

Use a free greenhouse plan to build a backyard greenhouse that allows you to grow your favorite flowers, vegetables, and herbs, all year long. Greenhouses provide seedlings and plants with warmth in the winter and cool in the summer, letting you participate in your favorite hobby every day of the year.

The free greenhouse plans below include diagrams, illustrations, photos, written building instructions, materials/tools list, and everything else you need to build your chosen greenhouse. Marie Iannotti, the Expert to Gardening, has a wonderful article to help you with the planning stages of building a greenhouse, which is a great read before you decide on one of these plans.

After you've used one of these free greenhouse plans to build your DIY greenhouse, come back and browse my other free woodworking plans to help you build a shed, picnic table, dog house, pergola, potting benchcabin, or chicken coop.


Picture of a barn greenhouse
© Ana-White

This free greenhouse plan is for a barn style greenhouse that will help you grow your plants while looking stylish.

The free greenhouse plan includes photos, diagrams, a materials and tools list, written instructions, and videos.


Picture of a solar powered greenhouse
© Mother Earth News

If you're feeling ambitious then this free greenhouse plan from Mother Earth News might be just for you. You'll get a completed greenhouse that's solar heated and even has a sleeping loft.

Scroll through the pages of this free greenhouse plans to find a materials list, images, and directions for building this great looking greenhouse.


Picture of a greenhouse
© The Door Garden

Here's a free greenhouse plan that will build you a greenhouse that only costs you $50 for all the materials.

A materials list, construction steps, and building tips are all included in this free greenhouse plan from The Door Garden.


A geodome greenhouse
Northern Homestead

Northern Homestead has shared their free greenhouse plan for building a GeoDome. Use this plan and you'll get a greenhouse that's lightweight yet secure, absorbs lots of light, has a lot of ground growing space, and one that makes quite the statement.

There's a materials list, tools list, written directions, diagrams, and photos to help you build it.

They also have other posts on their greenhouse about how to arrange plants within it, how to cover it, how to add a hot water tank, and more.


A white shed.
Buildeazy.Com Ltd

Here's a free greenhouse plan by BuildEazy that is conveniently built out of mostly 2"x4"s.

Click your way through the pages of this free greenhouse plans to find shopping lists, directions, and diagrams. There are also photos of the greenhouses built by other readers who have used this plan.


How To Specialist greenhouse illustration
© How To Specialist

How to Specialist has a free wood greenhouse plan that will only take you a few weekends to build.

Included in the free greenhouse plans are a materials list, diagrams, tools list, and tips.


A mini greenhouse painted blue.
Design Dreams by Anne

Don't want to make the commitment of a full-sized greenhouse? You won't have to with this free greenhouse plan, where you'll get to DIY a mini greenhouse from 2x4's and storm windows.

Written directions and full-sized photos will help you build this mini greenhouse.


Illustration of a small greenhouse
© How To Specialist

Here's another free greenhouse plan from How to Specialist. This plan will build you a small greenhouse.

You can use the written instructions, materials and tools list, as well as tips and diagrams, to build this greenhouse.


Illustration of an arched greenhouse plan
© PVC Plans

Here's a free plan for an arched greenhouse that's completely built out of PVC pipes.

Download the free greenhouse PDF plan and you'll get a material list, diagrams, and written directions.


Illustration of a small greenhouse
© How To Specialist

This free greenhouse plan will give you everything you need to build a small greenhouse that's perfect for your backyard.

This free greenhouse plan includes lots of diagrams and illustrations along with written instructions.


Row of potted plants
Johner Images / Getty Images

FloridaGardener.com has a nice greenhouse plan that you can print and use for free.

A combination of wood and PVC pipes are used to build this large, hooped greenhouse.