Charles Ellicott Commentary Exodus 37:1

"And Bezalel made the ark of acacia wood: two cubits and a half was the length of it, and a cubit and a half the breadth of it, and a cubit and a half the height of it:" — Exodus 37:1 (ASV)

Bezaleel made. — Aholiab had no part in the construction of the furniture of the Tabernacle, but only in the coverings, the veil, the curtains, and the priests’ garments. (See Exodus 38:23.)