Why are boards made with a width of 1220?

[MrBowmore]

I am planning to put up new boards on the inside of the garage walls (which is not heated but insulated) and found oil-hardened board at ByggMax. But they have a width of 1220 and the studs in the garage have a center distance of 1200... I don't understand why boards are made with a width of 1220. Can someone explain?

 

[niblom]

Oilboard is normally not used as a panel covering but rather for an air gap between raw wood and insulation, under the foundation, etc. In such cases, the boards are overlapped.
/N

 

[Mats]

In addition, the discs should bulge a little, and thus 1220 is very suitable for that job.

 

[Johan Gunverth]

...Don't understand why they make boards with a width of 1220. Can someone explain?

It's because the USA, along with Burma and Liberia, are the only countries that don't use the metric system. The USA is still considered an "important market" in this context, and that's why we get half-fueled planes crashing empty in the ocean, crashing Mars satellites, and overdosed medicine.

48 inches ≈ 1220mm.

 

[JanneL]

Yes, or 4 feet wide and 8 feet long, 1220 x 2440 mm.