3″ X 3″ Straight Crossmember Aluminum 52″ 3″ X 3″ Straight Crossmember Aluminum 80″ has been added to your order form. Checkout View Order Form $89.95 Any Crossmember Under 58″ Long. 3" X 3" Straight Crossmember Aluminum 52" quantity Add To Order Form SKU: 4426 Category: Crossmembers Related products 10″ Aluminum I Beam $76.95 Part #:4812 Sold By The Foot. Add To Order Form 5 1/2″ Aluminum I Beam $23.95 Part #:216 Sold By The Foot. Add To Order Form 3″ X 3″ Straight Crossmember Aluminum 82″ $133.95 Part #:4815 Any Crossmember Over 82" Long. Add To Order Form 6 1/2″ Aluminum I Beam $26.95 Part #:217 Sold By The Foot. Add To Order Form