There is an 8 foot bed, but
There is an 8 foot bed, but only with the regular cab option. None of the half ton trucks offer an 8 foot bed right now with 4 doors. Ram and Chevy only offer the big bed with a regular cab. Ford offers the SuperCab option with two reverse-opening half doors and an 8 foot bed but that is as close as you can get to an 8 foot bed and a larger cab. The Toyota website indicates that you can get their larger cab with the long bed but I cannot find exact bed measurements on their website...and based on the awkwardness of the image shown in the configurator - I have to wonder if you can actually order a Tundra with that gigantic wheelbase.