Playground chips are manufactured with whitewood from BC sawmills. Play Chips meet ASTM 1294 standards of impact attention from 12 feet. ASTM is the American Society of Testing and Materials. The chips weave together and establish a surface which is soft and spongy underneath the feet. It is recommended that the playground be monitored every 4-6 months to ensure it provides the children with the fall protection needed. The appropriate depth, after compaction, is 12″. Raking the play chips at regular interval s will keep them looking fresh, and will concurrently enhance the chip’s fall protection qualities.