Accurate lines improve safety and performance
Line marking is one of the most important elements of any sports court. Lines define boundaries, guide player decisions and ensure fair play. When lines are incorrect or faded, matches become confusing, unsafe and inconsistent.
This guide explains the correct standards and best practices for tennis and netball court line marking in South Africa.
Why line marking matters
✔ Accurate gameplay
✔ Improved player confidence
✔ Better decision making during fast movement
✔ Professional appearance
✔ More effective training sessions
✔ Greater safety for players and umpires
High quality line marking is what separates a professional court from a basic surface.
Tennis court line marking standards
Tennis lines must meet Tennis South Africa guidelines.
Key requirements
Line width: 50 millimetres
Lines must be perfectly straight using laser or string guides
Bright white acrylic line paint
Non slip finish for player safety
Full compliance with official court dimensions
Lines must be sealed properly to prevent early fading
Every line must be positioned with precision, including
Baseline
Service lines
Centre mark
Doubles sidelines
Singles sidelines
Even a small misalignment can affect match decisions.
Netball court line marking standards
Netball lines must follow Netball South Africa regulations.
Key requirements
Line width: 50 millimetres
All lines must be white and clearly visible
Court zones must be marked and aligned accurately
Centre circle: zero point nine metre radius
Goal circle: four point nine metre radius
Netball lines define the
Goal third
Centre third
Obstruction distances
Correct line marking improves player understanding and reduces unnecessary fouls.
Best material for court lines
Only acrylic sports paint should be used because
It bonds strongly to the surface It resists UV sunlight It provides a non slip texture It lasts longer than standard paint It is easy to maintain
Normal household paint peels quickly and becomes slippery, making it unsuitable for sports.
When line marking should be refreshed
Every three to five years on high use courts
After resurfacing or asphalt repairs
When fading reduces visibility
If cracking or colour loss appears around line areas
Fresh lines restore clarity and improve the overall look of the court.
Colour options for multi sport courts
Secondary sport lines can be added in different colours, such as
Yellow for basketball
Light blue for indoor hockey
Green for secondary tennis markings
Clear colour separation helps avoid confusion during multi sport use.
Why professional marking is necessary
Untrained painters may
✘ Use incorrect line widths
✘ Apply slippery paint
✘ Misalign the layout
✘ Ignore official sport standards
Professional marking ensures accuracy, safety and full compliance.
Upgrade your court the right way
William Gift Civil provides professional line marking for
Schools
Sports clubs
Private estates
Community courts
We follow South African sporting standards for perfect accuracy every time.
Call or WhatsApp
+27 82 428 1251
We Build Quality That Lasts