Descriptive InformationCeiling detail... NOTE the round pole joists and the loft flooring. The loft flooring is of rived oak boards 5-1/4 to 8-1/4 wide, 1/4 to 3/4 thick, and 6' long. Due to the uneven edges of the boards when they are rived, the joints are lapped as when laying weather boarding Rockford Shults Corn Crib I-5, Head of Webb Creek, under Snag Mountain III-B-10672, History - Buildings