Installing Floor Joists For Second Floor
The joists are so straight that i can t hardly find the crown in the lumber.
Installing floor joists for second floor. The 2x12 lumber that i picked up a few weeks ago is perfect. You ll use the same size lumber to assemble the rim joists as you will for the main floor joists. 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.
Now you are ready to cut and install the floor joists. For most jobs 2 in 5 1 cm x 10 in 25 cm boards are an ideal size. Here s a how to guide on joist hanger installation. 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.
If you have sagging cracked or twisted joists which can happen in older houses this project will provide the extra support the floor needs. 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. Measure the distance between the rim joists. 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.
Repeat the process as many times as necessary to have joists at roughly 16 inch intervals underneath your floor. These large 4 by 8 panels fit snugly together to form a structurally sound walking area on which to install the second story walls.