There are three main concerns when it comes to installing a basketball court in your driveway.
The existing slope of the road.
input size
Location of the sun in the afternoon.
Most driveways have a minimum slope of 1% or more to promote adequate drainage. A slope of 1% means that if you walked 100 feet you would go down 1 foot, 2% would be 2 more feet than 100, etc. So why is it important? In a gym, the hoop is always 10 feet high no matter where you are on the court. In a driveway this is completely different. When taking free throws, the ring must be 10′ higher than the free throw line. With a 1% slope, there would be a 1.8″ difference in height for the hoop going under the basket and standing at the foul line. Now, if there were a 4% slope, there would be a height difference of 7.2″, which is tall when practicing free kicks. One solution is to locate the basketball unit on the flattest part of the driveway, another solution is to replace the asphalt in the part of the driveway where you would like to have a court and minimize the slope to 1%. Otherwise, you have to live with the limitations and risk of taking imprecise free kicks.
When it comes to size, there should be at least 2-3 car driveways to build the court. The required distance from the basketball unit post is 25′ to the top of the key/secondary 3-point line. Assuming your basketball unit has the official out-of-bounds distance of 4′ backboard to post + 15′ to foul line + 6′ to top of high school/3-point line Key, it’s nice to have 3′ beyond the 3-point line for shooting high school 3-pointers. 28′ from the post to the edge of the field is a minimum. 28′ would also be a comfortable minimum for width, as the lane is 12′ wide, which would give you 8′ on each side of the lane for the ball to bounce multiple times on a missed shot before going out of bounds. . The wider, the better and more 3-point arc you will have on your court. The 3-point line at the baseline is just under 40 feet wide.
Finally, keeping in mind the location of the sun is very important and often overlooked. However, this one is easy. Just walk to your driveway at 4 or 5 pm and imagine the location of your basketball unit. Line up for a free kick and if the sun is in your eyes and it is located behind the imaginary location of your basketball unit, then this location is to the west and is not a good location for your hoop. The opposite of west is east and the sun will only be behind the basketball unit at sunrise when most people aren’t playing basketball. To the right of west is north, which would also be an ideal location. Another way to figure this out is to look at the north arrow on your property survey or look at your house in Google Earth and check for the north arrow on the map.