I had the same idea when I picked up a load of 2x4s for my coop at ProBuild. They let me have them.I went to the H D in Woodinville I DID ask and they looked at me like I was crazy LOL ! told me take as many as ya want they just get thrown out. they are laying around the 2x4's, 2x6, etc. usually on the floor but some times there's really good ones still on the lumber piles they are just the right size , all ya have to do is cut them for length