The height of the table tennis net is 7 inches (17.78 cm) at its highest point and 5 inches (12.7 cm) at its lowest point.
According to Chinese rules, if no posts are used to support the net, it should be 5 1/2 inches (14 cm) high in the middle and 4 3/4 inches (12 cm) high at the sides.
If posts are used, they may be placed outside the ends of the table and as close as possible to each end line; but not nearer than 11 inches (27.94 cm) from each sideline or baseline or within 2 feet (60.96 cm) of each centerline.
The top of the net should be 5 1/2 inches (14 cm) above the playing surface at the center of the table. The bottom of the net should be 6 inches (15.24 cm) above the playing surface at its lowest point, but not more than 3/4 inch (1.91 cm) higher than 33 inches (83.82 cm).
Nets with a single cord, tape or strap are recommended; two-cord nets may also be used, provided that they are kept taut and in place by clips placed no more than 11 inches (27.94 cm) apart on each side rail when measured from the center of the net post to clipline..
The top part of net shall be red or black. The tape, strap or cord must be white eigh.
The net shall not exceed 7 feet (2.13 m) in height at the center of the table between posts before it slopes downward to its lowest part, which is no more than 4 feet (1.22 m) above floor level.
The net shall slope from a point directly above the center of the table down towards the ends at an angle as uniform as possible on each side and shall terminate within a maximum of 3/8 inch (0.95 cm) on either side of each sideline..
Each end of the net shall have a knot tied into it parallel to and 11 inches (27.94 cm) from the edge of the table.
The net shall be no more than 7 feet (2.13 m) high at any point between posts and shall slope downward towards either end, before it becomes taut horizontally across that end; provided, however, that at least two-thirds of the net width shall be within 2 inches (5.08 cm) of either sideline.
Posts should not be more than three (3) inches (7.62 cm) in diameter or 10 inches (25.40 cm) apart measured along the top edge from center to center.
Underside mesh size may vary maximum 10 mm, maximum total horizontal dimension 5x10cm for competition tables, 4x8cm for recreational tables.
Normal Cord Net
The net shall extend to the surface of the table on all sides, but not overhanging ends, as specified below:
- For competition tables – Over each end of the table – a minimum distance of – 2 inches (5 cm); or
- For recreational tables – no less than 1.50 inch (3.81 cm).
Posts should be placed at equal distances from each sideline and from the end lines; they should be fastened firmly in position with metal joints or by means of metal fittings. Metal parts shall have a dull- surface to prevent injury to players and the table shall be kept in position by clamps when not in use.
Nylon Cord Net
The net shall consist of nylon cord with a mesh of square or hexagonal holes and shall measure:
- For competition tables – 8 mm (1 cm):
- For recreational tables – 7 mm (1/4 inch).
It should run parallel to the end lines between the posts for, at least 10 inches (25 cm); thus allowing free movement both ways for each player. The bottom edge of the net should be met 1/2 inch (6.3 mm.) above the surface of the table on all sides; it should be tightly attached to roller-mounted metal posts fixed to the end lines, posts that meet in the middle of the table and are held together by a string running through them. Two metal clamps must be provided for each net post to hold the net in position. The larger of these shall have a diameter of not more than 1/4 inch (6 mm) at its widest point.