There are several companies out there that make plain jane flatbeds. I believe mine is a Bradtech, atleast thats what the mudflaps did say on them. I know there are many others it's just hard to keep track of the names since I see so many. Hillsboro makes a pretty nice one tho. Deweze, Hoswell, Cannonball, and Big G also make hydraulic bale beds, which are handy but abit more in price. And I believe Cannonball or Big G offer a hydraulic dump/bale combo bed which is pretty slick.
Nathan