Building a greenhouse in East Texas
What are good resources for designing a greenhouse in East Texas (Longview). I want a mid-range price option...nice but not crazy expensive. Which are the best of the "packaged" greenhouses. Are there websites or books with actual plans. Are there reasonably price architects for greenhouses. It is not going to be too large...about 10 X 10 or 12.
I'm clear across the country from you and, therefore, not familiar with your area and climate. I also generally work with commercial growers who are buying larger greenhouses or high tunnels from manufacturers such as Harnois, Rimol, Ledgewood, etc.
That said, the following may be helpful:
Know whether you are heating the greenhouse or not, and if so how much heat you need to add: http://blog.uvm.edu/cwcallah/2015/04/01/calculating-greenhouse-and-high-tunnel-heat-loss/
Video Series showing greenhouse and high tunnels in use by several VT growers: http://www.youtube.com/playlist?list=PLwGgmXsdmFP7H6MmOBy5eGuIT_D9d5Vaa
This page has a number of Winter Growing Resources that I have compiled and includes a list of books which may be helpful to you: http://blog.uvm.edu/cwcallah/winter-growing/
There is also a collection of farm building plans called the Midwest Plans Service hosted at Iowa State. They have some greenhouse plans:
Greenhouse and Cold Frame: https://www.ag.ndsu.edu/aben-plans/5941.pdf
Archroof Plastic Covered Greenhouse Moveable: https://www.ag.ndsu.edu/aben-plans/5946.pdf
Variable Length Wood Framed:https://www.ag.ndsu.edu/aben-plans/6094.pdf
TriPenta Greenhouse: https://www.ag.ndsu.edu/aben-plans/6097.pdf
Wood Framed: https://www.ag.ndsu.edu/aben-plans/6029.pdf
There are also a number of YouTube videos and other resources related to bent conduit or PVC tubing construction for greenhouses:
Hope this helps. Yes, you could also hire an architect, but would have to look around locally I think. You might also want to check around your area for a builder who has built a greenhouse and work through some designs with them.