State high school associations may adopt rules permitting the use of backstroke ledges during swimming competitions starting ...

State high school associations may ... 5 inches (5 meters) from the end wall. It also specifies the acceptable dimensions for the ledges. Under Rule 2-7-3, if backstroke ledges are used in a ...

For the Ledge Amphitheater ... s 1 ½" SSR 24 Gauge High Strength Galvalume Steel in True Black, providing durability and long-term performance. The post-frame wall system features Fabral ...