Wood I-joists made from engineered lumber are an excellent building ... Using 16-inch deep wood I-joists spaced at 16 inches on center, you can span 26 feet 1 inch and still meet virtually every ...

Throughout the United States, engineered wooden I-beam joists are becoming more prevalent ... especially in longer lengths; they can span longer distances without vertical supports; spacing ...

Scientific span tables that are referred to in the ... with plywood or oriented strand board. If you purchase engineered floor joists that resemble steel I-beams, these have no crown in them.

If the distance between joists (nail heads) is 16 inches or up to 19 1/2 inches for engineered joists ... be up to 1 1/2 inches thick for a 36-inch span. The 3/4-inch-thick subfloor takes a ...

He uses both pre-engineered joists and traditional joists. He said new home builders want open concepts, which mean longer floor spans. Only pre-engineered joists allow for longer spans.

Span tables for these beams provide ... who want to take advantage of the great strength of engineered I-beams by using fewer floor joists, with no loss of floor support. Home Depot further ...