| SL610SA | SL714TA2 | SL816TA2 | SL820TA2 | |
| Overall length | 13' 9" | 17' 9" | 19' 9" | 23' 9" |
| Overall width | 7' 9" | 7' 4" | 8' | 8' |
| Overall height | 7' 6" | 7'9-1/2" | 7' 10" | 7' 10" |
| Interior length | 10' 4" | 14' 5" | 16' 4" | 20' 4" |
| Interior width | 5' 9" | 6' 8" | 7' 6" | 7' 6" |
| Interior height | 5' 11" | 5' 11" | 6' 5" | 6' 5" |
| Platform height | 17-1/2" | 20" | 20" | 20" |
| Rear doors | 4500 lb. ramp | 4500 lb. ramp | 4500 lb. ramp | 4500 lb. ramp |
| Axles | 2990 lb. single | 3500 lb. tandem | 3500 lb. tandem | 3500 lb. tandem |
| GVWR | 2990 lb. | 7000 lb. | 7000 lb. | 7000 lb. |
| Payload capacity** | 1690 lb. | 4760 lb. | 4200 lb. | 3900 lb. |
| Hitch weight | 130 lb. | 224 lb. | 280 lb. | 310 lb. |
| Floor | 3/4" plywood | 3/4" plywood | 3/4" plywood | 3/4" plywood |
| Sidewalls | 3/8" plywood | 3/8" plywood | 3/8" plywood | 3/8" plywood |
| Brakes | optional | electric | electric | electric |