Bezalel made the ark of acacia wood, 45 inches long, 27 inches wide, and 27 inches high.
References for Exodus 37:1
He overlaid it with pure gold inside and out and made a gold molding all around it.
He cast four gold rings for it to be on its four feet, two rings on one side and two rings on the other side.
He made poles of acacia wood and overlaid them with gold.
He inserted the poles into the rings on the sides of the ark for carrying the ark.
He made a mercy seat of pure gold, 45 inches long and 27 inches wide.
References for Exodus 37:6
He made two cherubim of gold; he made them of hammered work at the two ends of the mercy seat,
one cherub at one end and one cherub at the other end. He made the cherubim [of one piece] with the mercy seat, [a cherub] at each end.
They had wings spread out, covering the mercy seat with their wings and facing each other. The faces of the cherubim were looking toward the mercy seat.
References for Exodus 37:9