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
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.
Basketball Hoop Basketball Goal 54" Basketball Backboard 7.5ft-10ft Height Adjustable Portable Basketball System for Adult Youth Kids Indoor Outdoor Use
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. The official height of the hoop should be 10 feet off the surface of the ground.
Per NBA regulations, the dimensions of a basketball backboard are 6 feet wide by 3 ½ feet high. The backboard is marked with a 2-inch white rectangle that is centered behind the ring; the rectangle's outer dimensions are 24 inches wide by 18 inches high. The basket itself consists of a metal ring with an 18-inch inner diameter and a white cord net that is 15 to 18 inches long.
A key basketball court dimension for installation purposes is the distance from the baseline to the face of the backboard. In a setting where sanction play will occur the dimension from the baseline to the face of the backboard will be 4'.