All Tour 4™ "18" Series amp racks have a 16.94" rackable depth. The rack body depth is 18". With the front and back covers on, they measure 21.81" deep outside. The Tour 4 Series racks are constructed of 1/4" plywood with an ABS laminate finish and have sturdy aluminum extrusion.
The T4-AR1218 rack has 12 rack spaces (21"). It comes standard with eight heavy-duty recessed catches, and four heavy-duty recessed handles.
Color choices are black, gray, blue, or red laminate. As always, 3" or 4" caster dolly plates and rear rack rails are available as options.