Here are a couple of custom contractor bodies for a client. These are built on 60" CA 4x4 dually Ford F350 chassis and are 9' long. The flatbed feature Apitong floors with I beam crossmembers, with upper and lower tool boxes by RKI with Lifetime Warranty. This job also included fuel transfer pumps with 50' of 3/4" hose on a Reelcraft reel mounted in bed. The unique rear goal posts are removable and are stowable at base of headboard.
Another example of custom flatbed trucks made by West Coast Truck Equipment. Call them at 916-376-0690 and we will be happy to build one or a hundred to your specifications. See their website at http://www.westcoasttruckequipment.com/.