According to NOFMA, how long should a solid strip floor acclimate before sanding and finishing?

The correct choice indicates that a solid strip floor should acclimate for a period of 1 to 3 weeks before any sanding and finishing takes place. This duration is essential for the wood to reach a stable moisture content that aligns with the surrounding environment. When solid wood flooring is installed, the moisture in the wood needs time to equate to the moisture level in the home or building, which can fluctuate based on humidity and temperature changes.

Acclimation is critical because if the wood is too moist or too dry during sanding and finishing, it can lead to issues such as warping, cracking, or improper adhesion of finishes. By allowing the wood to acclimate for the recommended period, contractors ensure that the wood behaves predictably during and after installation, leading to a better aesthetic and longer-lasting results.

The range of 1 to 3 weeks is a widely accepted guideline based on various environmental conditions and wood types, making this answer a reliable recommendation in accordance with industry standards established by organizations like NOFMA (National Oak Flooring Manufacturers Association).