Exodus 37:1
"And Bezaleel made the ark of shittim 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:"
Cross References (ranked by relevance)
Exodus 26:33
And thou shalt hang up the vail under the taches, that thou mayest bring in thither within the vail the ark of the testimony: and the vail shall divide unto you between the holy place and the most holy.
Exodus 31:7
The tabernacle of the congregation, and the ark of the testimony, and the mercy seat that is thereupon, and all the furniture of the tabernacle,
Exodus 40:3
And thou shalt put therein the ark of the testimony, and cover the ark with the vail.