Do you need gap when replacing floor

gk5000

Hello,
I'm replacing an old chipboard floor with OSB. However, the room has been slabbed and partitioned since the original floor was done, so I can't remove the chipboard all the way to the wall, just cut around the outside of the slabbed walls and partitions.


Now when adding the new OSB, can I butt it against the old chipboard, or studs in the partitions or do I have to leave a gap...given its not against the wall?


Thanks.

The Continental Op

I've some idea you are supposed to leave a 1/8 inch gap between sheets but that maybe where you are putting another floor on top? One thing I would definitely think about is putting some noggins around the edges and at the joins to take the weight?

bobbyy gee

you put a gap at walls for expansion because wood expands and shrinks you could take skirting board off and take out excess floor wood
wood planks for floors need to be left in room for a week so it expands.you need to take any plastic off