Ezekiel 41:1-3

Then the man brought me to the main hall and measured the jambs; the width of the jambs was six cubits on each side. The entrance was ten cubits wide, and the projecting walls on each side of it were five cubits wide. He also measured the main hall; it was forty cubits long and twenty cubits wide. Then he went into the inner sanctuary and measured the jambs of the entrance; each was two cubits wide. The entrance was six cubits wide, and the projecting walls on each side of it were seven cubits wide.