This cabinet came with 2 "L" brackets to make the frame more rigid.  They are useless. I am in construction and know how to build things well. This cabinet seems like it could just fold.  The plastic rails that go along the top of the drawer were missing so the folders have nothing to hold on to and just fall into the drawer. Also the grooves that are cut into the wood for joining the panels were misaligned and very difficult to assemble. I though it was a great price when I bought it but you get what you pay for.