10ft Tri-Pod Swing Add-A-Bay Expansion | Child Works by SRPADA accessible ASTM F1487 certified GSA contract pricing SAM registered vendor 10 week lead time Already have a 10ft 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 middle schools, high schools, and large municipal parks. Pricing belt seats included MSRP $1,207 $1,095 Save $112 Includes 2