Net posts are set 42’ apart for a doubles court. This measurement should be made from the center of one post to the center of the other.
Net posts may be permanently installed or they may be set in sleeves, making them removable and allowing use of the court for multiple purposes. We highly recommend that sleeves be used on all net post installations. Net posts set in sleeves make resurfacing and maintenance easier. Net post installation utilizing sleeves may also prevent the future need to dig up the post footing in order to replace bent, rusted or broken posts. Sleeves should be large enough to accept the post to be installed and should be round or square depending upon the type of post to be used. The net post sleeve should be positioned at the center of the foundation. Extending the bottom of the foundation slightly in the direction of the opposite post may increase its resistance to excessive stress caused by over tensioning the net.
Once you have determined the appropriate location for each net post/sleeve, a concrete foundation will need to be installed to secure the net posts. Net post foundations should be round at the top, not less than 18” in diameter tapering out to a square bottom not less than 30” at the bottom (see diagram below). Foundations should be 6” deeper than the local frost depth, but not less than 42” deep. The appropriate depth for a net post foundation depends on the particular soil conditions and the amount of freeze-thaw activity at the site. The ground in which foundations are set should be firm and unyielding.