Cold Frame Dimensions

Here is a description of the cold frames that we are using right now. There are two of them and they are the same size. We made them out of what we had, so yours might vary in size. They were built according to what we were going to cover them with. At first, we used old windows that were given to us for the tops, and now we have two sides of a glass sliding door that are much heavier and less likely to get broken! We have used clear plastic with a wood frame around it before, also, and it worked great. From back to front, they are 3 feet, sloping from 19 inches heighth at the back to 9 inches in the front. We used 2 X 10's for the back so that is why the 19 inches. (Why do they call them two by TENS???) You have to have enough of a slope to get sunlight in there all day, or as much as possible. They are 79 inches long. We plant three rows in each and you get a surprising amount of greens. Especially when they take off in the early spring! Ours are out in the open and they are facing south. I hope this answers your questions! If you need more information just let me know. Also, if you try it, let me know how it goes!
Nancy