Lawn Tennis - Field and Equipments

Field

The playing court is rectangular and it is 78ft long and 27ft wide. It is divided across the middle by a net, suspended from a cord or metal cable of a maximum diameter of ¹/₃ inch, the ends of which shall be attached to or pass over the tops of two posts each 3 feet 6 inches high, the center of which shall be 3 feet outside the court on each side. The height of the net shall be 3ft at the center where it shall be held  taut by a strap not more than 2 inches wide.

 The lines bounding the ends and sides of the court shall be called the Base-lines and the Side-lines. On each side of the net, at a distance of 21feet from it and parallel with it, shall be drawn the Service line. 

The space on each side of the net between the service-line and the side-line shall be divided into two equal parts called the Service-courts, by the center service line which must be 2 inches in width, drawn, half-way between the parallel with the side-lines. Each base-line shall be bisected by an imaginary continuation of the center service-line to a line 4 inches in length and 2 inches in width called the Center mark, drawn inside the court, at right angles to and in contact with such base-lines. All other lines shall be not less than 1 inch nor more than 2 inches in width, expect the base-line, which may be 4 inches in width and all measurements shall be made to the outside of the lines.

In the Doubles Game, the measurement of the field is same as in the Singles Game except the width. The width of the court shall be 36ft i.e. 4 ¹/₂ feet wider on each side than the court for the Singles Game. 

Equipments

Ball

The diameter of the ball shall be in between 2 ¹/₂ inch and 2 ⁵/₈ inches and its weight is in between 2 and 2 ¹/₁₆ ounces. The ball shall have a uniform outer surface and shall be white or yellow in colour.

Racket

The hitting surface of the racket shall be flat and consist of a pattern of crossed strings connected to a frame and alternately interlaced or bounded where they cross and the stringing pattern shall be generally uniform. The frame of the racket shall not exceed 32 inches including the handle and 12 ¹/₂ inches in over all width.