at http://www.hud.gov/offices/reac/pdf/pass_dict2.3.pdf (325 Pages, 343 KB) Additional clarification to these definitions is contained in the REAC PASS Compilation Bulletin which can be found at http://www.hud.gov/offices/reac/pdf/pass_bulletin.pdf (24 Pages, 275 KB)
An official NFL football is slightly larger than high school or other professional leagues. The length should measure about 11 inches from tip to tip, and the in circumference at the center of the football should measure about 22 inches.imilar to other levels of football, the NFL uses an egg-shaped football, but the NFL has specific rules to the size, shape and materials used for the football. The Digest of Rules of the NFL explains the official size requirements for the football, along with other basic rules for playing the game.
The dimensions of a football field are generally the same. However there are some small differences in the other aspects. The measurements for the NFL, college and high school games are outlined below. NFL Measurements. The field measures 360 ft long (120 yards) and 160 feet wide (53 1/3 yards). The end zone has a depth of 10 yards. The end line border is 6 ft. This is the rear of the end zone. The benches are set at the 30 yard marker along the restraining line.