I've built 6 racks for 16" split firewood using these brackets and have been pleased with them. I also used them to build a table that keeps pellets for my wood pellet stove off the floor. This (along with a grain scoop) really helps minimize back pain when loading the pellets into the pellet stove.  The table was built using treated 2x4 pine for the frame, 1x4 cedar for the top, and common deck screws.  It can easily hold 200 pounds (5 bags of wood pellets).