Regulation basketball hoops are suspended 10’ | 3.05 m from the surface with a rim diameter of 18” | 46 cm. The backboard surface is sized at 42” x 72” | 110 x 183 cm. Dimensions.com
One of the most important things you will need to consider is what size backboard you will need for your new basketball court. Backboard sizes vary in width from 48” wide all the way up to 72”, but for the sake of regular game play we recommend choosing backboard no smaller than 54” wide. Anything narrower than this measurement won’t allow the player to perform bank shots at all!
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Regulation basketball backboards have a width of 72” | 183 cm and a height of 42” | 110 cm with an inner rectangle that is 24” | 61 cm wide and 18” | 45.7 cm tall. For casual non-regulation courts, smaller Fan-Shaped Backboards are often used. Basketball rims are hung 10’ | 3.05 m above the court floor. Fan-Shaped Backboard
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They are 72 inches wide, 42 inches high, half an inch thick and of course are made of glass. If you are looking for a home basketball gym or for a church or school then this will be the size you will want to go with. Most of you, however, are looking for drive way or backyard portable basketball goals. There is no need to have a 72 inch backboard.
So, how big is a regulation-sized basketball backboard? The dimension requirements listed by the NBA, NCAA and High School are all the same. The regulation size for a basketball backboard is 42" tall x 72" wide. However, a 48" tall backboard is also permissible.
Official Hoop Dimensions. The diameter of a basketball hoop is required to be 18 inches, and this is uniform for all courts everywhere around the world. A full-sized basketball needs this much space to pass through the hoop without getting stuck, and this diameter never changes.
Some boards are specifically designed as wall mount basketball hoops while others can easily mount to walls, ceilings or polls at your at-home court. Features like wrap-around bracing and double-compression springs bring extra resiliency and strength. Find basketball backboards that fit your court, ranging in size from 54-inches to 44-inches.