Aluminium floor

[geeman]

Well im planning on using an aluminuim floor, but not completely sure as to what thickness aluminuim i should be using. I was thinking 2 or 3mm. Also i was going to use some 40x3mm strip as well for seat montings when it eventually comesto it. I was also wondering if i should use 3mm tread plate as i think it would give a nicer effect and is hardly any more. I was planning on ordering a 2x1m sheet from parkersteel. Also on the inside for interior i was hoping to do somthing similar to the digram on pg116 but was wondering if i should use thim aluminuim as opposed to mdf or plywood for the inside layer.

Also im hoping this will be my last parkersteel order so is there anything i should order now incase i need it, as im not sure where else ill need aluminuim/steel as i dont want to fork out for another delivery charge later.