Why Wood Splits

Humidity Levels

• Humidity levels in a house can vary wildly, depending on climate and the time of year. If you live in a dry area, you will need to run an indoor humidifier to keep your furniture from drying out and splitting. Those in moist climates need to run dehumidifiers to keep their wood from warping. Ideal humidity levels for inhabitants as well as wood are around 30 to 40 percent. This will provide enough moisture in the area to keep wood from cracking, without creating issues with mold.

Water Damage

• Water damaged wood will also split and crack. This is a very common problem with wood floors, especially under windows. Protect your flooring by shutting windows before storms, and watch out for leaks. If you have a window air unit, make sure it does not drip on the floor. In areas such as the kitchen where appliances and sinks can leak, be vigilant and keep your appliances in good working order to prevent leaks.

Improper Care

• Failing to take good care of wood can also lead to cracking and splitting. Wood furniture should never be exposed to direct sunlight for any great length of time. Move wooden pieces away from windows or use drapes during the height of the day. Polish the furniture regularly and use wax occasionally to keep the surface of the wood protected. You don't need to wax all the time -- just twice a year is usually sufficient.

High Altitude Problems

• Homes in higher altitude can experience problems with cracked wood. This is due to the air being thinner and dryer at higher altitudes. Over time, if wood is not properly cared for, it will crack and split. Use wax more frequently if you live at a high altitude. Polish your furniture and keep it from direct sunlight, which will only worsen the issue. Install a whole house humidifier to keep humidity levels at a constant level.