The ABS-R0416C three space rack has a 16.75-inch rackable depth space between the front and rear rack rail. The front rails are inset .25". There is a total of 19" of rackable depth from the front rails to the inside of the rear cover, and 21.5" depth from inside front cover to inside rear cover. This rack includes a built-in pull-out handle and two sets of recessed dual wheels. The design of this rack incorporates a built-in bottom support that eliminates stress on the rack rail from the weight of the equipment. Also, there is a built-in filler panel to cover handle access at the bottom of the rack, ensuring greater protection for both the equipment and the case itself.