1) Prepare 1 bolt assembly by inserting lock washer (#B), then flat washer (#A) onto bolts (#D). Insert dowels (#G) to the holes of the chair back. Align chair seat (#2) onto to holes of the chair back (#1), then secure center hole with bolts (#D). 2) Prepare 4 bolts assembly by inserting lock washer (#B), then flat washer (#A) onto bolts (#C).Secure corner holes of the chair seat (#2) with bolts (#C).