How to build a Greenhouse
1: Introduction, Description, Position
2: Sizes, Angles, What you will need
3: Making the base
4: Making the side wall-frames
5: Making the roof sections
6: Erecting the side walls and roof
7: Making the end walls and doors
8: Making the window, The cover
Appendix 60° and 30° Angle patterns
Appendix Photos of finished project
This is a revised and updated version of the 'How to build a Greenhouse' project. The old version can be seen at https://www.buildeazy.com/greenhouse_imp.html
In this version, the greenhouse frame is constructed mainly out of 2"x4" (100mm x 50mm) which is a more common stock (in North America, anyway) than the 2"x3" (75mm x 50mm) called for in the original version. We will talk more about lumber sizes a bit further down the page.
Other modifications include a wider door to allow for a wheelbarrow if need be, and a bit more inside height. See, we do listen to feedback.
To view some photos of greenhouses sent into us by people who have used the plans go to https://www.buildeazy.com/greenhouse5-10.html. Photos of other peoples handiwork are a good source of help and inspiration.
This greenhouse consists of a lumber frame suitable for a cover such as a clear UV-resistant polythene film.
It is 8ft (2400mm) wide by 10ft (3000mm) and stands 8' 6" (2550mm) off the ground at the highest point.
There are two opening windows that span along the very top of the greenhouse and a door at either end (optional).
The greenhouse basically sits on the ground and is held in place by a few stakes around the bottom that are hammered into the ground and nailed to sides of the base.
It could be fixed more permanently if required without too much ado, and would probably need to be, if positioned anywhere other than a sheltered area.
It is ideal for areas that have just enough winter frosts to be annoying.
Where to place the greenhouse.
Choose a place likely to get the winter sun. The greenhouse should not be placed in a potential boggy area without drainage.
If the site is a low lying area, then it might be necessary to put in a drain (open, tile or metal) to re-direct any water flow away from the greenhouse site.
User Photos/Comments about this project
I enjoyed building the greenhouse. I changed things up a little by making 12' by 8' and adding some gutters to catch the rain. more and photos >>
Jim Victoria, B.C.
Thank you for the wonderful greenhouse plan! Since I live in the northern states, I stepped it up and insulated the base more and photos >>
Amber Christenson Strandburg, SD
Many thanks for the greenhouse plans, pictures, and suggestions on your website. I modified the size of the greenhouse more and photos >>
Rod Partee Rochester, Wash., USA
2011 was the year for this project. Thank you for this green house idea. This was really fun to build and we enjoy it very much. We are going to try to grow spinach and lettuce in the rain gutters... more and photos >> Jim Morris
Summer of 09 we built my greenhouse from the plans on this site. We modified a bit for the height and made it fit the foundation that was in place. It was a lot of work but it came out so good, I have it filled with plants now and loving my time inside. Thanks for posting the plans See photos
I Would like to give you credit for your greenhouse plans. I built one that is 10' X 16' . I enclosed it with Solex panels. My wife and grandmother just love it.
Again I would like to thank you for your free site.
Thank you for your site, Louis Jones Townville, SC USA See photo
My wife and I love to spent time outside in our ever expanding garden so we thought a greenhouse, using your plans, would be a great addition to our planting hobby. The greenhouse plan was simple, well laid out and easy to understand. I am sure that we will enjoy it for many years to come.
Kevin & Valerie Cowan Upstate South Carolina Photo
Hi there, A lot of good projects and plans to find here. Here is a pic of our Greenhouse.
It works really good. Costs were around 160,- Euro.
Thanx Alex & Stefan Photo
Hi. Just a few photos of the greenhouse I built according to your plans last fall. Only modification was to add 6 inches to the wall height. Did not have treated lumber for 2 by 3's so stained it with a green preservative (copper napthenate). I covered it with a clear (translucent) woven poly. cheers,
I thought I would send in two pictures of my greenhouse I built with your plans. I am in America, so I had to convert to English measurements. Thanks for the inspiration. We love it!
Austin, TX, USA Photo
I have just completed a greenhouse from you plan, and I am very happy with the results,
I used PVC panels rather than Poly. Photo attached,
Ken Taylor Photo