SLEEPER, a term used with many technical applications for a piece of timber, metal, &c., used as a support; in carpentry it is such a piece of timber laid on low cross walls as a plate to receive ground joists; in shipbuilding, a strengthening timber for the bows and stern frame; the most frequent use of the term is …

What is a sleeper framing?

Sleepers are placed between the deck surface and the ground or slab below it. A set of sleepers supports the decking and allows moisture and air to flow below it. … Sleepers can also stabilize a deck when the frame has gaps that are too large to properly support the chosen decking boards.

What is a sleeper joist?

Sleeper joists are wooden boards installed on top of an existing subfloor that are typically used as support for hardwood flooring. The sleeper joists follow the same arrangement and spacing as the main home joists located under the subfloor.