What court sizes and net heights are used in 10 and under competition?

Tennis Canada's Rules of the Court 2026 (Appendix VIII) say that in addition to the full-size court, these may be used for 10 and under competition:

• Red court: a rectangle between 36 feet (10.97 m) and 42 feet (12.80 m) long and between 14 feet (4.27 m) and 20 feet (6.10 m) wide. Net height at the centre: between 31.5 inches (0.800 m) and 33.0 inches (0.838 m).
• Orange court: a rectangle between 58 feet (17.68 m) and 60 feet (18.29 m) long and between 20 feet (6.10 m) and 27 feet (8.23 m) wide. Net height at the centre: between 31.5 inches (0.800 m) and 36.0 inches (0.914 m).
• Green: a full-size court (the Progressive Tennis page lists a regular-height net).

For comparison, Tennis Canada's Progressive Tennis page describes red as one-quarter of a full court and orange as three-quarters of a full court.