Constructing Second Plywood Floors

Second floor construction techniques follow a standard process.

Constructing second plywood floors. Before you begin cutting or measuring grab a pencil and paper and sketch an outline of your floor. The many types of plywood can differ in materials number of layers rating and grade. Proper subflooring for wood on second floor. Your sketch should depict the floor s basic shape and layout complete with any additional features like alcoves nooks and staircases.

This guide will explain the different uses of plywood as well as popular plywood sheet sizes and its rating and grade system so that you can choose the best plywood for your project. The final step in building a floor for a house is to sheet it with osb. Osb floor sheeting is typically 3 4 thick and comes with a tounge and goove to give the spans between the floor joists strength. A floor s framework is made up mostly of wooden joists that run parallel to one another at regular intervals.

The osb or plywood must be staggered like stacking bricks to give it strength. As construction gets higher builders must. 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. Framers construct the second story floor system to match the layout of the main floor system.

Extremely long spans staircases or interior walls typically require additional support which can complicate your framing. Draw up a basic floor framing plan. Ceiling joists are usually 2 by 6s or sometimes 2 by 4s if it is an older home. Floor joists are typically 2 by 8s 2 by 10s or 2 by 12s.