You get a backboard mounting kit at Wal-Mart
6" . A STANDARD RECTANGULAR BACKBOARD IS 42" HIGH. THE TOP OF RIM IS 36" FROM THE TOP OF BACKBOARD, SO THAT LEAVES 6" FROM THE BOTTOM OF BACKBOARD TO TOP OF RIM.
60x38
6.5" with an oddball mounting pattern.
On a standard Basketball net, the rim is attached perpendicularly to the backboard, which is usually white (or clear) in colour.
It is usually about 15 by 12 in at the smallest and 24 by 25 at the largest.
The standard 10 screw hole size for mounting hardware is 3/16 inch in diameter.
The standard size of the brake caliper mounting bolt for a typical vehicle is usually around 12mm in diameter.
The standard TV mounting bolt size for most television sets is M8, which means the bolt has an 8mm diameter.
the backboard is behind the basketball hoop
No matter the age or level of competition, the free-throw line in basketball is a standard 15 feet from the backboard. However, the distance between the backboard and the baseline may vary due to the size restrictions in a gymnasium.
The basketball backboard is there to show ppl where to shot the ball to get it in.