Home weightlifting platform... here we go!
The flooring is a concrete float constructed as part of the former garage.
The platform itself comprises a 'laminate' of the following:
BOTTOM: Wickes fibreboard flooring insulation (£25/pack of 20);
1st: 8x4' 11mm OSB2;
2nd: Wickes fibreboard insulation;
3: 8x4' 11mm OSB2.
3 OSB boards were used to create two layers, making a platform of 8x6'.
This will all be screwed'n'glued together this evening. The finishing touch will be a 'runway' down the middle on which the silliness will occur, and some rubber matting down each side to absorb the initial sharp impact from the bar drops. Not sure what I'm going to use for these bits, but we'll see.
Gave it some 40kg from overhead and the platform didn't budge (and I'd hope not with that weight!
), so with some additional rubber and whatnot, it will be most awesome.
Space (it's wet because it's been PVA'd):
Sound insulation/shock absorption:
Platform basics: