Strip and Two-by-four

Strip noun - A long narrow piece of material.

Two-by-four and strip are semantically related In some cases you can use "Two-by-four" instead a noun "Strip".

Two-by-four noun - A timber measuring (slightly under) 2 inches by 4 inches in cross section.

Strip and two-by-four are semantically related in beam topic. Sometimes you can use "Strip" instead a noun phrase "Two-by-four", if it concerns topics such as length of material used as support.