15CR. TENNSCO DELUXE LATERAL FILES Front to Back Bars Convert side-to-side filing to front-to-back filing for convenient, easy-to-read access. Order 1 set per drawer for 2 columns of front-to-back filing of letter / legal size. Hanging folder bars allow 2-row filing on 36"W lateral files and 3-row filing on 42"W lateral file cabinets. 42�W Cabinets accept 2 sets per drawer for 3 columns of letter size front-to-back filing.