Yes, all wood floors will expand and contract in direct relation to environmental humidity and temperature fluctuations in the home. Allow this normal movement by ensuring the recommended perimeter expansion gap per product.Also floating floor manufacturers recommend a center expansion for rooms over 27’ in length because once all the boards are assembled together the flooring can be very heavy. This center expansion allows the heavy weight of the total floor additional center movement or relief if needed, preventing possible center buckling of the floor.Adding more expansion around the wall of larger rooms helps. The best advice is to followmanufacturers recommendations for center expansion with “T” type moldings. Often this can be employed at doorways or at the start of a hallway. Also, ensure the proper perimeter spacing for your product; this is normally the thickness of the flooring being installed.