4 1/2″ Aluminum I Beam $19.95 Sold By The Foot. 4 1/2" Aluminum I Beam quantity Add To Order Form SKU: 215 Category: Crossmembers **Price Is Per Foot** Related products 80″ Aluminum “V” Crossbar $140.95 Part #:4814 Fits Up To A 80" Wide Frame Width. Add To Order Form 7 1/2″ Aluminum I Beam $32.95 Part #:218 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 3″ X 3″ Straight Crossmember Aluminum 76″ $125.95 Part #:4427 Any Crossmember Over 76" Long. Add To Order Form