Strongest Wood For Floor Joist

How to make floor joists stronger.

Strongest wood for floor joist.

Wood joist rather i joist is an unique man made wood product having immense strength compared to its size and look. A mere 1 2 inch thick plate of steel bolted between two planks of wood can carry much bigger loads than wood alone and thus the whole beam can be sized smaller. Also available for the android os. How joists support floors and ceilings joists the horizontal members that span two walls and or beams have to carry the weight of the walls people furniture appliances and other stuff we place on them.

Steel has tensile strength which makes it an excellent material for joists or carrying beams when paired with lumber in a flitch beam. After several centuries of service floor joists in older homes may sag or crack. Joists can impact many things such as flooring plan safety from fire materials that can be installed for surfaces and even quality of air under the house. True floor joist span calculations can only be made by a structural engineer or contractor.

Triforce joists can fill the bill for any type of wood frame construction. It has the added benefit of being adjustable onsite. Long spans of joists in newer homes may wobble or bounce from foot traffic. Wood i joists sometimes called tji s resemble steel i beams.

Span calculator for wood joists and rafters also available for the android os. The proprietary design allows totaljoist to be installed similar to wood i joists. When a load is applied to a joist the wood fibers along the bottom edge go into tension and those along the top go into compression fig. They are composed of a top and bottom flange usually a 2 4 with a piece of plywood or osb fixed perpendicular in between.

I joists are comprised of top and bottom flanges which resist bending united with webs which provide outstanding shear resistance. Sistered solid wood joists. A compelling engineered wood floor alternative. This sample table gives minimum floor joist sizes for joists spaced at 16 inches and 24 inches on center o c for 2 grade lumber with 10 pounds per square foot of dead load and 40 pounds of live load which is typical of normal residential construction.

Triforce costs less than open web trusses yet is as strong and as rigid. I joists are strong lightweight i shaped engineered wood structural members that meet demanding performance standards.