Ezekiel 41:2-3

2The doorway was 17-1/2 feet wide, and the walls on each side of it were 8-3/4 feet long. The sanctuary itself was 70 feet long and 35 feet wide.

3Then he went beyond the sanctuary into the inner room. He measured the walls on either side of its entrance, and they were 3-1/2 feet thick. The entrance was 10-1/2 feet wide, and the walls on each side of the entrance were 12-1/4 feet long.