FYI, the cargo area underneath the deck (raised position) is not the same as when the deck is lowered. So a liner designed to fit with the deck in the lowered position will not fit under the deck when it's raised.
If you don't have the double deck or even if you have it, I'd recommend the Husky's.
You have the double decker, if there is a tray like area behind the wheel wells and center area of the cargo floor is higher. Also the the edge trim at the back door is about an inch or so lower than the cargo floor and the cargo floor edge is rounded off (it rolls down towards the trim). The carpeted area should be a rectangle. Non double decker trucks will have carpet behind the wheel wells, a T-shaped area that's completely carpeted.