Installing Sub Floor In Room Without 90 Degree Corners

These step by step instructions demonstrate how to easily install subfloor panels in an empty room.

Installing sub floor in room without 90 degree corners.

How to demolish flooring and install underlayment. See the diagram to the right. Modern cabinetmakers and installers use a small item called a scribe tool to remedy. This is the type of joinery used in most picture frames and many other woodworking projects where perfect 90 degree angles are required.

Here are nine common subfloor installation mistakes and how to prevent them. If you are unsure what angle you need imagine where your seating is in your room compared to the corner and pick the angle that best suits your needs. Built up drywall compound and imperfect corner bead installation or framing generally leave you with something greater or less than an exact 90 degree angle and standard 45 degree miters won t work. Using the original sub floor nails as a guide mark the floor joist locations on the wall to know where to insert the screws.

To avoid buckling subfloor panels should be spaced with a 1 8 inch gap at all edges and ends to provide room for naturally occurring expansion. Out of square corners those that don t form a perfect 90 degree angle are common when installing cabinets.