OSB floor boards are added as a temporary floor for easier work during the rest of the build. With 30 floor joists installed, we will begin raising the walls higher, one log at a time!

A standard I-joist is normally 8 feet to 24 feet in length, but I have seen much longer I-joists. With longer I-joists, a center support beam or header will be needed to prevent "bouncing" floors.

In this episode, we begin our flooring project by snapping a chalk line across our main girders and notching out mortises spaced 16 inches apart. We salvaged smaller logs from our forest ...

A standard I-joist is normally 8 feet to 24 feet in length, but I have seen much longer I-joists. With longer I-joists, a center support beam or header will be needed to prevent 'bouncing' floors.

A standard I-joist is normally 8 feet to 24 feet in length, but I have seen much longer I-joists. With longer I-joists, a center support beam or header will be needed to prevent "bouncing" floors.

Engineered I-joists are used in the construction of most new homes. They reduce squeakiness and use less lumber than traditional solid-wood joists, but some firefighters believe they don't hold up ...

For example, if your home has 2x8 floor joists, cut the solid blocking from a 2x8. Cut two or three blocks to fit snugly, but not too tightly, between the two joists.

Blocking is a solid piece of lumber nailed perpendicular to the run of the floor joists. Bridging consists of two pieces of wood, usually 1-by-4s, nailed diagonally between two floor joists.

This will give you the location of the floor joists. If the distance between joists (nail heads) is 16 inches or up to 19 1/2 inches for engineered joists, the subfloor is probably 3/4 inch thick.