Barbara created Fort Bing for the active 2-year olds attending Bing Nursery School, a Laboratory School for Research and Teaching associated with the prestigious Stanford University. The 4'x4' Main Tower has a slated hip roof, custom railings with circle-square-triangle cut-outs, open slide and ADA Transfer system with 2 steps. Attached below the 3' high deck is a 4' long crawl tunnel.  Fort Bing, designed for the 2 to 5 age range, complies with the ASTM F1487-11 Standards for Public Use Playground Equipment and Americans with Disabilities Act guidelines.