Gm does not make a SB dually truck. The only that I am aware of is the Dodge Megacab and it can be had with a dual rearend.
8.2 ft bed. 6.6 ft bed.
140 ft. Lbs
Most semi commercial trucks or delivery trucks can be 50 ft long.
8 ft for the long bed and 6.5 ft for the short bed.
10-12 ft
120 ft lbs with single wheels 140 ft lbs for dually all changed to 140 ft lbs between 95 -96 (round dash)
8 ft bed
yes, the sqft of the bed is 51.84 so that leaves you 100sq ft to play with. it should be easy to corner the bed and add a dresser. or prob even center the bed.
8 ft.
8x8x4= 256ft²
You go to school and learn how to do this then take a test for a licence.
The domestic use of a 4ft bed is primarily to sleep on. A bed which is 4 ft in length would be comfortable only for children or adults who are quite short. A bed of 4 ft width with a standard 6-7 ft length would be extremely comfortable to sleep in and give plenty of space for moving around in as well.