Ezekiel 41:1-2

After that, the man brought me into the sanctuary of the Temple. He measured the walls on either side of its doorway, and they were 10-1/2 feet thick. The 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.