13 Free Greenhouse Plans

Barn Greenhouse

This free greenhouse plan is for a barn-style greenhouse that will help you grow your plants while looking stylish with its sturdy corrugated metal and greenhouse plastic sides. The free greenhouse plan includes photos, diagrams, a materials and tools list, written instructions, and videos.

Barn Greenhouse from Ana White

Geodome Greenhouse Plan

Northern Homestead has shared its 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.

It also has other posts on its greenhouse about how to arrange plants within it, how to cover it, how to add a hot water tank, and more.

Geodome Greenhouse Plan from Northern Homestead

Low-Cost Greenhouse Plan

Here's a free greenhouse plan that, when you build it, will only cost 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.

Low-Cost Greenhouse Plan from The Door Garden

Solar Heated Greenhouse Plan

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.

Solar Heated Greenhouse Plan from Mother Earth News

Greenhouse Project Plan

This free greenhouse plan by BuildEazy is conveniently built out of mostly 2 by 4s. 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.

Greenhouse Project Plan from BuildEazy

Free Greenhouse Plan

HowToSpecialist 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.

Free Greenhouse Plan from How To Specialist

Recycled Window Greenhouse

Instructables has a free greenhouse plan that uses a unique building material—old windows. It creates a great looking structure that's environmental and budget-friendly. There are lots of color photos and written instructions to help you build one for your yard.

Recycled Window Greenhouse from Instructables

Small Greenhouse Plan by HowToSpecialist

This free greenhouse plan by HowToSpecialist 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.

Small Greenhouse Plan from How To Specialist

How to Build a Greenhouse

BuildEazy has another free DIY greenhouse plan, this one builds a large 8-by-10-foot greenhouse that you'll be able to fit all kinds of plants into. There are 13 pages in this free plan that includes drawings, photos, diagrams, and instructions on how to build it.

How to Build a Greenhouse from BuildEazy

How to Build a Small Greenhouse

Here's another free greenhouse plan from HowToSpecialist. This plan will build a small greenhouse that's perfect for a small backyard. You can use the written instructions, materials and tools list, as well as tips and diagrams to build this greenhouse.

How to Build a Small Greenhouse from How To Specialist

Little Window Greenhouse Plan

This free greenhouse plan from Crafts a la Mode takes some old windows and makes them into a greenhouse just pick enough for a few plants. It's a gorgeous greenhouse that doubles as yard decor.

Little Window Greenhouse Plan from Crafts a la Mode

Arched PVC Greenhouse Plan

Here's a free plan by PVC Plans 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.

Arched PVC Greenhouse Plan from PVC Plans

Build Your Own Greenhouse

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.

Build Your Own Greenhouse from Florida Gardener