Guys. It's not going to weigh that much.
A 2.5m x 1.25m sheet of 8mm check plate is 7kg.
And it's not going to have anything heavy in it! Just some rope and stuff.
Of course it could be made lighter by making it into 2 smaller ones - ie. a gap in the middle.
In any case - any ideas on where I can get something like this made?