I have a new black ECS footlocker case being built for me, should be here within a few weeks.
The normal footlocker size is 33" long with an option of 12, 16, or 20" high.
The newer size they just introduced on their website is 25" long, and the same heights as the longer case.
I had cut back down to just one of the footlockers of the old size (always trying to pack less, as I take to much

) now this newer size will give me more room in the rig, and my box I recently picked up a month or so back for my Goal Zero solar stuff will fit on top of the higher 16" footlocker, but still clear the ceiling by several inches.
This will allow me pack other stuff around the smaller footlocker better.
You can see the new sizes here.
The smaller footlocker though does not have the option for casters, I wish it did.
http://www.ecscase.com/outdoor-and-firearms/loadmastertm-footlocker
You can also see the size difference between the regular sized footlocker and the new one in this PDF file at the bottom of it.
http://www.ecscase.com/media/files/ECS_Loadmaster_Footlocker_Case.pdf
Series Outside Dimension
Length x Width x Height Inside Dimension
Length x Width x Height Weight
(Lbs)
Large Footlocker
LMFL3321-12 33.4" x 20.8" x 12" 30.4" x 17.8" x 10.5 36.6
LMFL3321-16 33.4" x 20.8" x 16" 30.4" x 17.8" x 14.5 39.6
LMFL3321-20 33.4" x 20.8" x 20" 30.4" x 17.8" x 18.5 42.7
Medium Footlocker
LMFL2517-12 - 856 25" x 16.6" x 12" 22" x 13.6" x 10.5 25
LMFL2517-16 - 867 25" x 16.6" x 16" 22" x 13.6" x 14.5 27
LMFL2517-20 - 878 25" x 16.6" x 20" 22" x 13.6" x 18.5 30