How To Install Floor Joists

When choosing boards to be the floor joists it s important to use a high quality grade of wood and to make sure it s free from defects such as knots.

How to install floor joists. Step 5 finishing up. Use correct joist hangers blocking panels rim boards and cross bridging at joist ends. Find a metal joist hanger that can support the new joist you re installing.

Install joist hangers for added strength with a hammer and nails. Then hammer the hanger to the wall with 16d galvanized nails. Lay out your joists so that they will be spaced 40 cm 16 inches on centre.

Here s a how to guide on joist hanger installation. Joist hangers will make a much stronger connection than nails on their own and help to make sure that the joist is placed properly as well. Get out one of your joist hangers and select a beam to attach it to.

Pick timber that is 5 cm 2 inches deep by 15 20 or 25 cm 6 8 or 10 inches. What you should know calculating the load. Repeat the process as many times as necessary to have joists at roughly 16 inch intervals underneath your floor.

Learning how to install floor joists properly is very important for your home. An engineer and architect will spec out the load requirements for the plan. These boards should be free of large knots or blemishes as that could affect the strength of the boards.

Make sure the bottom of the joist is sitting on the hanger without any gaps. They help support the foundation and make the floor solid. Center it on one of the marks you have made and nail it into place.