Constructing Second Plywood Floors

As construction gets higher builders must.

Constructing second plywood floors.

Extremely long spans staircases or interior walls typically require additional support which can complicate your framing. Before you begin cutting or measuring grab a pencil and paper and sketch an outline of your floor. A floor s framework is made up mostly of wooden joists that run parallel to one another at regular intervals. Plywood is a necessity in many diy and construction projects but not every type of plywood works for every project.

Some newer homes have manufactured i beam shaped joists. Osb floor sheeting is typically 3 4 thick and comes with a tounge and goove to give the spans between the floor joists strength. The many types of plywood can differ in materials number of layers rating and grade. Your sketch should depict the floor s basic shape and layout complete with any additional features like alcoves nooks and staircases.

Whether you re installing a hardwood floor on the first or second floor of a building you need a solid subfloor that won t sag and that will hold nails. Ceiling joists are usually 2 by 6s or sometimes 2 by 4s if it is an older home. Proper subflooring for wood on second floor. The osb or plywood must be staggered like stacking bricks to give it strength.

Draw up a basic floor framing plan. Typically the second story floor joists will not only run the same direction as the first floor joists they will also be directly over them. Floor joists are typically 2 by 8s 2 by 10s or 2 by 12s. Framers construct the second story floor system to match the layout of the main floor system.