Bearing grid system at rear with full width hardwood fillers and aluminum I-cores rear 36″ of floor in center 68″; 1 additional crossmember at rear for maximum 6″ center line at rear 34″

Bearing Grid System at Rear with Full Width Hardwood Fillers & Aluminum I-Cores Rear 36″ of Floor in Center 68″. 1 Additional Cross member at Rear for Maximum 6″ Center Line at Rear 34″