Floating Floor Parallel To Joists

Floor joists are typically 2 by 8s 2 by 10s or 2 by 12s.

Floating floor parallel to joists. Section r502 10 of the international residential code states that header joists can be the same size as the floor joists when the header joist span isn t greater than 4 feet but if the header joist span is more than 4 feet you ll need to double the header joist and ensure that it s capable of. The most common way to lay install hardwood flooring is by aligning the planks parallel to the longest wall or run in the installation. Some newer homes have manufactured i beam shaped joists. A floor s framework is made up mostly of wooden joists that run parallel to one another at regular intervals.

The floor joists may run parallel to the short dimension at the floor level but at the roof level the short dimension is the opposite direction. Some houses have the shiplap on a 45. Additional support for the floor joists is achieved by nailing the ends of the joists into headers. If the joists are at 24 o c.

First renail the existing plywood subfloor so that the old nails are tight and add new nails to achieve a maximum nail spacing of 6 inches. A flooring contractor howard brickman responds. If you have an older house with a shiplap floor the shiplap is perpendicular to the joists so the flooring is parallel to the joists. If the joists are at 19 2 or 16 on centers laying the wood parallel to the joists should not be a problem.

With 3 4 subfloor it s best to add another layer. Flooring experts recommend installing flooring boards perpendicular to the floor joists in a house with a plywood subfloor. Installing them parallel creates the possibility that the floor will sag. Apart from a few exceptions like sagging joists this is the preferred direction to lay wood floors because it provides the best result aesthetically.

It could be ok but you are dancing in the danger zone. The roof is modern or unique such as a single sloped roof flat roof or a unique overhang. If the subfloor is stiff enough there is no reason why solid nail down strip flooring can t be run parallel to the joists.