The timbers are 4"x5" and 8 feet long, though there are a couple of short ones toward the top of each X structure.
They are held together by a 3/4" threaded Stainless steel rod. We bored 7/8� holes through each timber and the bottom timber has a plate with a nut welded on. There are also 8- 5/16� holes drilled through the bottom timbers for attaching weight to hold the X to the bottom. The bottom plate makes for easier assembly.
We bored a hole in the ice, centered the bottom timber up over the hole and the turned the threaded rod into the bottom timber. At that point we stacked the rest of the timbers on the rod and lined everything up before tightening. Then we put a double nut on the top end of the rod and tightened her down. It is a two man minimum, job
Thanks for your interest! - Dwight
