3″ X 3″ Straight Crossmember Aluminum 82″ 7 1/2″ Aluminum I Beam has been added to your order form. Checkout View Order Form $133.95 Any Crossmember Over 82″ Long. 3" X 3" Straight Crossmember Aluminum 82" quantity Add To Order Form SKU: 4815 Category: Crossmembers Related products McClain Frame To Crossbar Support $4.95 Part #:2332 Used With The 4 1/2" And 5 1/2" Tall I Beam. Add To Order Form 58″ Aluminum “V” Crossbar $107.95 Part #:4813 Fits Up To A 58" Wide Frame Width. Add To Order Form 8″ Aluminum I Beam $49.95 Part #:219 Sold By The Foot. Add To Order Form 7 1/2″ Aluminum I Beam $32.95 Part #:218 Sold By The Foot. Add To Order Form