The Owner-Builder Network

The Best DIY Hoop Greenhouse

DIY Hoop Greenhouse
DIY Hoop Greenhouse

DIY Hoop Greenhouses are a great way to extend your vegetable growing season in a cold climate. Building your own can help you save a lot of money as well as allow you to customize the size to suit your needs.

This greenhouse is built for starting seedlings, technically known as a propagation house. But what is great about it is that it’s made from PVC and wood, which are materials that are cheap and easy to find.

DIY Hoop Greenhouse - Build end walls

Even though it’s made from simple and inexpensive materials, it can grow a wide range of produce, even during the season not ideal for growing crops.

Want to grow your produce and extend your growing season? Why not build a DIY hoop greenhouse!

Pressure-treated lumber (PTL) is a wood product that contains preservative chemicals, which prevent wood rot. PTL is a good choice for DIY projects, as it is highly resistant to rot and insects. However, these chemicals are toxic, so it’s important to understand how PTL is made, and what these chemicals do.

DIY Hoop Greenhouse

You can create a hoop house out of one or two levels of PVC pipe. You can buy PVC pipe at most hardware stores or perhaps see if you have some already.

You should use at least a 1-inch diameter of PVC Pipe. You can buy it in 10 ft sections, which is usually enough. PVC pipe is a great choice for a hoop-style greenhouse.

Its lightweight and durability mean you can create a hoop structure that is strong enough to support your plants, but not so heavy that you can’t move it around or disassemble it when you need to.

DIY Hoop Greenhouse

The reason you should choose a pipe of this size was that you would want it to be able to be used inside the hoop so that you could rotate the pipe in and out of the structure as the plants grew and grew. You would also want to be able to slip 2 pipes into the structure to create a 2-level hoop structure.

You can bend the pipe with a hose clamp (widely available) or a pipe bender (a tool that creates a smooth curve in the pipe, I think it’s available at most hardware stores).

DIY Hoop Greenhouse

Hoop house greenhouse roofs can be made of many different things. The most common ones are plastic, metal or fibreglass. While fibreglass is often used due to its lightness, it can be quite expensive and an inferior choice, as it needs to be covered with something to keep it from getting wet.

You may also want to buy some poly-plastic sheeting as an alternative, some of that is the size of your pipe. In order to make it easier for plants to grow in your DIY hoop greenhouse, plastic is wrapped around the frame. This can make work easier when it is time to take away the plastic.

You may also want some plastic hooks and some zip ties, they will put things in order for your DIY hoop greenhouse.

DIY Hoop Greenhouse


  • 2 x 6’ Pressure Treated Lumber – the foundation
  • 2” x 4” Pressure Treated Lumber
  • 24” long 2” PVC
  • 23’ long 1-1/4” PVC Bows
  • 5” Carriage Bolts
  • 4” Carriage Bolts
  • Metal Strapping
  • Duct Tape
  • Six-mil Poly Plastic
  • Batten Strapping


  • Sledge Hammer
  • Electric Drill (with Graduated Drill Bit)
  • Channel Locks
  • Hole Saw
  • Scissors

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Thanks to Fiddle Head Farmers for this great project. You can get step-by-step instructions here

If you liked this project, you will also like viewing these gardening ideas…


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