For free-standing, in-ground systems, one (1) to two (2) adults are good for installing the concrete anchor that holds your system. For the Pro Gym wall-mount systems, (1) one to (2) two adults are also good for installing the wall plate.
Four (4) adults are recommended for installing the basketball system on top of the anchor and/or the wall. The ½-thick glass backboards weigh a lot, and requires a lot of strength to lift and then to adhere to the system.
