Old wooden floors

[Magician]

Anyone know the dimensions of these old tongue-and-groove wooden floors?

If I remember correctly, they are 28 mm thick as they are laid directly on the beams, but how wide are they usually?

 

[Fasting65]

The width can be anything depending on which saw you bought from. For us, the new smooth tongue and groove worked perfectly with our old subfloor from 1937.
http://www.fasting65.se/byggdagbok/dagboken/04_juni/06-15/web/IMG_3350.jpg

However, the tongue and groove differed a little bit.

Note: Keep in mind that subfloors often consist of spruce (fewer knots, rounder knots, and fewer black knots).

The funny thing, however, was that smooth tongue and groove and rough tongue and groove are measured differently, where one is measured by total width while the other is measured by visible surface...