450 wide
590 long
about 90mm deep at rear
30mm at front.
Heres the first set going in....these are extra thick layup with 6mm ply bonded in between layers - very strong.
These are being used to create the floor , they can be trimmed down to 'drop in' as well...
They are using a lot more materials than I expected and need to be £45 each or £80 ia pair if ordered with a kit.