5 1/2″ Aluminum I Beam 7 1/2″ Aluminum I Beam has been added to your order form. Checkout View Order Form $23.95 Sold By The Foot. 5 1/2" Aluminum I Beam quantity Add To Order Form SKU: 216 Category: Crossmembers **Price Is Per Foot** Related products 58″ Aluminum “V” Crossbar $107.95 Part #:4813 Fits Up To A 58" Wide Frame Width. Add To Order Form 3″ X 3″ Straight Crossmember Aluminum 58″ $97.95 Part #:4223 Any Crossmember Over 58" Long. Add To Order Form 12″ Poly Keel Pad $15.95 Part #:1193 Fits 3" Wide Crossmembers. Add To Order Form 3″ X 3″ Straight Crossmember Aluminum 82″ $133.95 Part #:4815 Any Crossmember Over 82" Long. Add To Order Form