Installing Floor Joists For Second Floor

Here s a how to guide on joist hanger installation.

Installing floor joists for second floor.

The rim joist sits vertically on top of the sill plate along the outside of the frame to create a lip for the main floor joists. The 2x12 lumber that i picked up a few weeks ago is perfect. The lengths should be the same because you took the time to make the sill plates square and parallel to each other cut the floor joists. Measure the distance between the rim joists.

The joists are so straight that i can t hardly find the crown in the lumber. Repeat the process as many times as necessary to have joists at roughly 16 inch intervals underneath your floor. When installed properly joist hangers will keep your deck or floors sturdy and durable. Put the floor joists on the layout marks on the sill plate.

Step 5 finishing up. Once you have done this you can replace or install your floorboards normally confident that you can rely on your joists to hold your floor together. This article provides step by step instructions and pictures on how to make structural repairs by sistering floor joists alongside weak joists. You ll use the same size lumber to assemble the rim joists as you will for the main floor joists.

Now you are ready to cut and install the floor joists. Once the floor joists are in place it s time to install the subfloor which is typically 3 4 inch tongue and groove plywood or oriented strand board osb.