90% of the challenge of a swing-set structure is getting beams securely fastened at the correct compound angles. These brackets are perfect for that job. The manufacturer recommended that the 4x4 legs be no more than 96\", but we used 120\" 4x4's because we wanted a taller structure-- this worked out fine for us. Assemby required having people hold the legs in place and the use of a step-ladder to fasten the legs into the brackets. The included plated-steel bolts are kinda low-end, but \"good enough\". Overall, this plus some lumber is really all you need to build a stable swing-set frame. We did not find additional bracing or brackets to be necessary nor was there a need for ground-anchoring.