i would rather use parts of items to build other items instead of throwing them away and using new material. i am not a purist, if i need a part i'll go buy it. here is the first boat out of the van.its a tender for my 27' uniflite sportfisher. i used the roof of the van to build it. the sheet was 17' long and 60" wide. i used a skill saw with a metal cut blade to cut the pieces. i used a tire to set the curve of the hull. 1/8 plate that was the vans interior driver-cargo divider became the transom.I ran the tube from an old rader rack, through the table saw to cut a slice lengthwise to slip over top edge, welded inside and out. i figure i still have a 16' river boat worth of sheet left.