Here are a few more pic of the interior as it is trick. And I didn't mention but the 1"x1" ribs are only on the top and bottom and yes you can not only stand on it but do an Irish jig if you so desire.the interior is coated with 2 coats of Helmsman polyurethaine/spar varnish for protection against the moisture. good luck and have fun building yours..
Alex/ Blindmonkey: cause even a blindmonkey can find a banana in the wood every now and again