Add-A-Bay Expansion Unit — 8ft Tri-Pod Swing Frame | Child Works by SRPADA accessible ASTM F1487 certified GSA contract pricing SAM registered vendor 10 week lead time Already have an 8ft Tri Pod swing frame? The Add A Bay expansion unit lets your facility grow without replacing the full structure. Add one bay at a time as your budget allows the most cost effective way to expand swing capacity at schools, parks, and recreation facilities. Pricing belt seats included MSRP $1,126 $995 Save $131 Includes 2 belt seats +