Floor Joists Cupping

It s most noticeable when coming up my basement stairs as the slider to our deck is across from the basement door and the sunlight shows the irregularities.

Floor joists cupping.

Repairing flooring vinyl wood or tile costs 347 on average or between 188 and 512 because pros need to go through this layer to get to the structural elements of subfloors and joists expect to pay far more for structural repairs. We plan to install perpendicular to the floor joists. Can wood floor cupping be. Cupping most often appears after the floor has been installed and in some cases the floor will cup even if it was installed correctly.

These same findings are not proven to apply to other types of floor joists i e i joists steel joists etc or for dimension lumber joists greater than 12 inches in depth. Last fall i noticed some cupping in a narrow swath just above a 6 heating cooling duct that runs between two floor joists. According to the study bridging may be considered necessary for 2x10 and 2x12 dimension lumber joists with clear spans exceeding about 16 feet and 18 feet respectively. Our contractor and hardwood installer say we should install the hardwood in the opposite direction to prevent cupping in that room.

To keep the wide boards from cupping you ll face nail them with cut nails driven through the subfloor and into the joists photo 18. My aesthetic dilemma is that the living room floor joists run in a different direction than the rest of the home. The wood is wetter on the bottom of the board than on the top surface which dries quicker than the bottom. A subfloor is the structural sheathing that spans the floor joists.

The tongue and groove pine flooring must run perpendicular to the floor joists. It s almost always completely hidden under some type of finished flooring material. Cupping occurs when hardwood.