davidwoodcock wrote:Didn't each Region have their own?
Bob Davies wrote:While I cannot help with the dimensions in imperial units, I can still quote quite a lot of the BR metric sizes for concrete cable ducts (how sad!), and the imperial sizes weren't a long way away from these. They would certainly be close enough when scaled down for modelling purposes.
From small to large (interior dimensions width x depth - all dimensions in mm - add about 50mm for external dimensions)
The imperial version of 300x350 was known as 'AA' size and had roughly the same internal dimensions but it came in 2ft lengths rather than 1m. 100x90 was used exclusively for subsidiary distribution routes. 150x200 was the preferred size for general routes on the LM Region but I believe that 190x130 was the preferred size on the Southern Region, although in both cases in areas where there was lots of equipment larger sizes would be more common.
DavidBelcher wrote:Thanks Bob. I suppose in 00 the odd fraction of a mm difference in width/height won't easily be noticed - sounds as though the length is more of an issue though, so I'll plump for 2ft (8mm).
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