My own 2 cents worth on greenhouses is to build them with used patio doors cheap got mine for 5 at restore and to be careful of snow loads and sliding snow.
Building a greenhouse with patio doors.
Our used patio doors are about 4 feet wide and 6 feet tall the perfect size for three along the south face and one on the west.
A greenhouse can be built from recycled materials including sliding glass doors removed from other buildings.
The east side has a homemade wooden door and another used window about 3 feet wide and 6 feet tall.
To him anything made of a substance other than.
If you have the tools and some basic woodworking knowledge you can build your own custom doors for your greenhouse as explained in these steps.
It s easy to cover clear glass with tinting or frosting if the greenhouse will hold too much sun.
I ve got about 8 3 x8 patio doors at some precarious horizontal angles on the south west side of my greenhouse addition to my passive solar home.
Sliding glass doors cover such large areas that it can be very handy to construct the greenhouse using these materials.