I’ve got two “ houses” that I use every year built using the 4x4 brackets you show. One is 8’ and one is five. The 8’er has been in place for ten years and is as solid as the day it was built. The shorter one is only two yrs old, but like the other should last many years. Both are built completely with treated wood. One (8’) is 5x8, the other is 3.5 x 5.5 and is a little snug if used by two hunters. Sorry about no pictures, but the PhotoBucket fiasco got me.
