Nets may be attached to the posts, cross-bars and ground behind the goals. They should be appropriately supported and be so placed as to allow the goalkeeper ample room.
Footnote: Goal nets. The use of nets made of hemp, jute or nylon is permitted. The nylon strings may, however, not be thinner than those made of hemp or jute.
130 yards 120 Meters 120 yards 110 110 yards 100 100 yards 90 80 yards 75 70 yards 64 50 yards 45 18 yards 16.50 10 yards 11 12 yards 9.15 8 yards 7.32 6 yards 5.50 1 yard 1 8 feet 2.44 5 feet 1.50 28 inches 0.71 27 inches 0.68 9 inches 0.22 5 inches 0.12 3/4 inches 0.019 1/2 inches 0.0127 3/8 inches 0.010 14 ounces 396 grams 16 ounces 453 grams 8.5 lb./sq.in. 600 gr/cm**2 15.6 lb./sq.in. 1100 gr/cm**2