> Does anybody know a company that produces tread plate suitable for
> 1/48th scale?
[quoted text clipped - 5 lines]
>
> Hope one of you can help me out.
Have you considered looking on any model railway/railroad hobby sites? Cab
floors and fallplates are made out of that sort of material. I know that it
is available in 4mm scale, which approximates 1/76. I see no reason why
similar stuff won't be available in 7mm scale, which approximates 1/43.
Slaters Plasticard may have something suitable.
http://www.slatersplastikard.com/Plastikard/slaters%20embossed_plastikard1.htm
Part No 0447 is a possibility.
Hope this helps.

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Enzo
I wear the cheese. It does not wear me.