Clean Up Advise Please

[Time's Ran Out]

They recommend a minimum of 10mm for floors , and rolling movement would be my concern!

 

[Martyn Wilks]

I just used 6mm as a slight nod to insulation, I insulated the ceiling, and built stud walls with 50mm insulation on the three walls and installed a 18mm thick 77mm slat insulated roller door.

The spec for the boards quotes 30T/m² so hopefully it should withstand the weight of the car, if it does collapse where the car rests then I will replace those areas with solid aluminium pads bolted to the floor.