Exodus 26:22

“And for the sides of the tabernacle, etc.] Or the ends of it, the east and west, and the account begins with the west: westward thou shalt make six boards; so that the breadth of the tabernacle was but nine cubits, or four yards and a half, according to a common cubit; but two boards more placed at the two corners of the sides, next observed, added to the breadth of it.”

“(Compare Exodus 36:8-33.) The tabernacle was to comprise three main parts, the tabernacle Exodus 26:1-6, more strictly so-called, its tent Exodus 26:7-13, and its covering Exodus 26:14 (Compare Exodus 35:11; Exodus 39:33-34; Exodus 40:19, Exodus 40:34; Numbers 3:25, etc.). These parts are very clearly distinguished in the Hebrew, but they are confounded in many places of the English Version (see Exodus 26:7, Exodus 26:9, etc.). The tabernacle itself was to consist of curtains of fine linen woven with colored figures of cherubim, and a structure of boards which was to contain the holy place and the most holy place; the tent was to be a true tent of goats’ hair cloth to contain and shelter the…”

“Six boards were to be made for the back of the dwelling westwards (ימּה), and two boards "for the corners or angels of the dwelling at the two outermost (hinder) sides." למקצּעת (for cornered), from מקצּע, equivalent to מקצוע an angle ( Exo 26:24; Eze 46:21-22), from קצע to cut off, lit., a section, something cut off, hence an angle, or corner-piece. These corner boards ( Exo 26:24) were to be "doubled (תּאמם) from below, and whole (תּמּים, integri, forming a whole) at its head (or towards its head, cf. אל Exo 36:29) with regard to the one ring, so shall it be to both of them (so shall they both be made); to the two corners shall they be" (i.e., designed for the two hinder corners). The…”