View attachment 440051View attachment 440052The bottom basket began as the shipping  pallet for a 
Woodmaxx hydraulic 
chipper. I worked great, but I needed more height. So made another one to bolt down on it.  Then I decided that I liked having it be easily and quickly switched on and off so I went with four inch steel C Clamps.  The lower pallet deck is  milled douglas fir two by lumber.
The upper basket deck is one inch  plywood. Both decks are bolted and nutted through the angle iron tray. Underneath the top deck, I have PT two by four on each side, screwed to the bottom of the upper deck. On top of the deck is one inch wood. SO, My clamp points are spread out  considerably with the use of those two boards.  It is strong as can be . Oh and I forgot to mention, I have foam rubber strip between the the top of the lower basket and the bottom of the upper basket. It all makes for a nifty install.