The 4 corner pieces are 2"x2" soft wood, about 5" high. These pieces were also split to form the 1x1 inch slide ridges for the trays at both sides and ends. The 2'x3' tray forms were made of half inch oak wood flooring, one half inches wide. Two rectangles one over the other with the screen between, and tightly screwed together make up the trays. 5 inches between each shelf.

The whole unit is covered with black fiberglass window screen, including top and bottom, and the trays.

We covered the top screen with opaque plastic sheeting, but found that it let in so much sun and heat that it scalded and bleached the food. We placed a piece of plywood on top of the plastic, and that has worked well.

The unit gets a good air flow from all sides.

I'd like to post a picture, but haven't been able to download the software for my digital camera on this blinkety-bleep Vista computer!

It takes some time to put this unit together--lots of sawing, measuring, and screwing--but you should be able to make one without too much difficulty. Good luck! phylm