Aluminum Welded Crossmember Please Provide Boat Make And Model When Placing The Order. 3 Bar Light Is Extra. SKU: 1186 Category: Crossmembers ** Call For Available Boat Patterns** Related products McClain Frame To Crossbar Support Call For Price Part #:2332 Used With The 4 1/2" And 5 1/2" Tall I Beam. Aluminum Straight Crossbar Extended Step Call For Price Part #:3608 Extends Past The Frame For Extra Fender Support. One Front And One Rear Of The Fender. Up To 105" Long. 3″ X 3″ Straight Crossmember Aluminum Under 58″ Call For Price Part #:4223 Any Crossmember Under 58" Long. 7 1/2″ Aluminum I Beam Call For Price Part #:218 Sold By The Foot.