I found this drawing on the web, from the Midland Railway Study Centre:
OK, it’s specifically the Midland Railway spec. But it specifies ‘old sleepers’ and that it should be tarred.
My feeling is used sleepers would be normal, as they would be cheaper and perfectly adequate for the job (though no longer good enough for use in track). Where do you get them? Buy them second hand, of course — just as you would today. The larger companies must have had plenty of sleepers taken out of track because of deterioration — but still with a value for other uses.
Tarring too I suspect would be standard.
OK, it’s specifically the Midland Railway spec. But it specifies ‘old sleepers’ and that it should be tarred.
My feeling is used sleepers would be normal, as they would be cheaper and perfectly adequate for the job (though no longer good enough for use in track). Where do you get them? Buy them second hand, of course — just as you would today. The larger companies must have had plenty of sleepers taken out of track because of deterioration — but still with a value for other uses.
Tarring too I suspect would be standard.