Build a Freestanding Speed Bag Platform
The freestanding speed bag platform shown above consists of a frame built from common doug-fir 2" x 6" studs (8'), plywood, bolts, wood glue and deck screws. This speed bag platform is stable, portable, inexpensive, non-destructive, and will support most types of racks. The rack used on this speed bag platform is a Valor Athletics model CA-2. I selected this model of rack because it is adjustable and fairly high quality.
The weight of the platform is 210 lbs. and the weight of the rack is 65 lbs. This speed bag platform will fit in a room with eight foot ceilings, has a 48" x 53-1/2" foot print, and can be moved by sliding or disassembled into component pieces by removing the bolts. At full extension the drum is 83" above the base. That will accommodate a 6' - 3" person using an 11" speed bag.
The total cost of materials for the platform was $150 US and Valor Athletics CA-2 rack (with shipping) was $270 US, (April 2012). The bulk of the platform cost was for the the lumber (12 studs - $60 US, one 4' x 8' sheet of 3/4" cabinet grade ply - $40 US). A better looking (and heavier) speed bag platform can be built using red oak though the cost would be about $500 for the lumber. I surface planed, edge rounded with a router, and finished with spar varnish before final assembly.
The freestanding speed bag platform dimensioned drawings and bill of materials are shown below.
Download the Free Standing Speed Bag Platform Plans here.