What Is Floor Sheathing

Used for sub floors exterior walls and roof decking osb sheathing is a structurally engineered board that is made up of compressed wood strands.

What is floor sheathing.

A span rating is stamped on each piece of material you purchase. Plywood is usually used as subfloor today. Sheathing is the board or panel material used in floor wall and roof assemblies of both residential and commercial construction. 2015 michigan building code 23 wood 2304 general construction requirements 2304 8 floor and roof sheathing 2304 8 1 structural floor sheathing 2308 4 7 wood structural floor sheathing structural floor sheathing shall comply with the provisions of section 2304 8 1.

Plywood sheathing is most often used to construct the structural sub floor. Plywood sheathing can either be osb or all plywood. Sturd i floor is a specialized engineered wood structural panel expressly designed for single layer flooring installations on upper floors where carpet will be laid directly over the subfloor. Floor and roof sheathing conforming with this table shall be deemed to meet the design criteria of section 2304 7.

A subfloor is a wooden structural substrate to which durable finished flooring is attached. There are many types sizes and configurations of plywood. Not required to provide structural support but often provides a type of supplementary support. There are several types of sheathing each having a specific function based on its application.

When using carpet and pad the best option is sturd i floor which allows for completely bypassing installation of underlayment. Plywood sheathing osb or plywood is often mistaken for plywood underlayment. Uniform load deflection limitations 1 180 of span under live load plus dead load 1 240 under live load only. Determining the correct floor sheathing thickness is important to the strength performance and longevity of your structure.

These strands of wood are arranged in layers that are bonded together with resin which helps produce a strong product osb or oriented strand board is unlike traditional plywood in that it has no laps gaps knots or voids. Different plywoods use various materials and methods of manufacture depending on the application for which they re intended. We will discuss these types of plywood sheathing sub floors and plywood underlayment in this blog post. Rated sheathing or sturd i floor may be used with an underlayment for vinyl ceramic tile or fully adhered carpet.

When you remove the floor covering you will see more flooring underneath possibly underlayment definitely subfloor. An underlayment is optional for rated sheathing or sturd i floor when used with hardwood. Floor covering or finish floor this is the visible floor the one you see and walk on and can be changed out.