Floor Thickness Wood Construction

Is 23 32 inch osb or plywood.

Floor thickness wood construction.

Some newer homes have manufactured i beam shaped joists. Laminate floors with a thickness of 12 mm to 15 mm feel more like hardwood floors than thinner laminates. For joist spans 16 inches or less nwfa recommends minimum panel thickness of 5 8 inch plywood or 23 32 inch osb. Depending on if what the floor finish will be tile hardwood or carpet there are different recommendations for the actual thickness of the plywood you ll need.

The building code requires 5 8. Details for conventional wood frame construction. For retrofitting older construction 23 32 and 3 4 inch thick panels can be used over 24 inch on center joists. Because solid floors expand more when exposed to moisture than engineered floors you can only install them over a plywood subfloor at or above ground level.

Usually manufactured in 4 by 8 foot sheets plywood panels and osb are acceptable subfloors for hardwood flooring as long as they are the proper thickness. The bulk of the floor s thickness comes from the joists which are the horizontal beams that carry the floor s weight. The heaviest rating is for 7 8 inch thick panels for which joists can be spaced 32. There are two main types of subflooring plywood and oriented strand board or osb.

Keep in mind that for mechanically fastened floors osb doesn t hold fasteners as well as plywood so you need to use a thicker material to get the same holding power. Such methods use a 4 foot design module which governs a 16 inch spacing of joists. 3 4 inch solid this is a 3 4 inch thick solid piece of hardwood floor and what you might typically think of for hardwood floors. The first approach to achieving a strong durable struc ture involving economical use of materials is to follow a basic modular plan for layout and attachment of framing members.

A floor s framework is made up mostly of wooden joists that run parallel to one another at regular intervals. Floor joists are typically 2 by 8s 2 by 10s or 2 by 12s. Wood construction data 1. The national wood flooring association s brett miller explains why minimum building code for joists and subflooring isn t always sufficient for wood flooring.

Joists in home construction are usually made with 2 by 10 or 2 by 12 lumber. Ceiling joists are usually 2 by 6s or sometimes 2 by 4s if it is an older home. Both come in 4 by 8 sheets and feature tongue and groove installation.