When someone tells us a floor has gapped over winter or buckled against a wall, the first question is how long the material sat in the room before it went down. The answer is usually “it went down the same day”.
Why it matters
Timber and timber-based products move with the moisture in the air around them. Material stored in a warehouse, or delivered on a cold truck, is not at the same moisture content as the room it is going into.
Lay it straight away and it will keep moving after it is fixed. Boards that were slightly wet when laid shrink and open gaps. Boards that were dry expand and have nowhere to go, so they lift.
What acclimating looks like
Bring the boxes into the actual room — not the garage, not the hallway — and leave them there with the heating or cooling running at normal living conditions. Stack them so air can reach the boxes rather than sealing them in a tight block.
How long depends on the product. Many solid and engineered hardwoods want several days. Some rigid-core vinyls want only 24 to 48 hours. Some products explicitly do not need it. The manufacturer’s instructions on the box are the authority, and they vary more than people expect.
The expansion gap
The other half of the same problem. Floating floors need a gap at every wall and fixed object so the floor can move as a sheet. It gets covered by skirting or trim afterwards. Butting a floating floor tight to the wall is the most reliable way to make it buckle.
Plan the delivery around it
If the material needs several days in the room, that is several days before the work starts, not after. Tell us the date you want to start and we will work backwards with you.