Some people use 2X lumber (which is ~ 1 1/2" thick) Eric Russell Mebane, NC http://home.mebtel.net/~ejrussell ----- Original Message ----- From: "David Scheidt" >I have this nagging feeling that decking comes in two fairly common > thicknesses. 5/4, which, of course, is only an inch thick, and a > slightly thicker size. What's the other size?