12 Free DIY Greenhouse Plans

There are plenty of ways to make a cheap, simple DIY greenhouse, whether you construct it from a kit or build it from scratch using one of these free plans. The result will be a homemade 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 listed include diagrams, illustrations, photos, written building instructions, frame materials, tools, and everything else you need to build your dream greenhouse in all different sizes and styles. DIYers can also find free plans online to build a shed, potting bench, or pergola to go with your greenhouse. Depending on what size you want—small to medium or large—building a DIY greenhouse may almost always be cheaper to complete on a budget than buying a premade version, especially if you’re able to score recycled materials. Here are 12 free greenhouse plans to get you started.