trimmed joist

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I-joist — An engineered wood joist or more commonly known as an “I joist” is a product designed to eliminate many of the problems that occur with using conventional wood joists. Invented in 1969, the I joist is a man made engineered wood product which has … Wikipedia
Stairway — Stairs redirects here. For other uses, see Stairs (disambiguation). Staircase redirects here. For other uses, see Staircase (disambiguation). This article is about the construction. For the song by Led Zeppelin, see Stairway to Heaven. Stairways… … Wikipedia
Sprung floor — A sprung floor is a floor that absorbs shocks giving it a softer feel. Such floors are considered the best available for dance and indoor sports and physical education.They enhance performance and greatly reduce injuries. Modern sprung floors are … Wikipedia

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