What size lumber do you consider when purchasing a swing set swing set? Does lumber size really make a difference? First and foremost, the frame work needs to be built strong. Swing-N-Slide recommends corner posts should be at least 4”x4”s and swings should be hung off a 4”x6” (or two laminated 2”x6”s) beam. Parents should also determine the space available in your backyard. This is often referred to as the “Minimum Use Zone”. The “Minimum Use Zone” encompasses the space required by the swing set, as well as the recommended clearance space around the set to ensure the safe play zone. A swing set should also offer challenges that allow for your children’s growth and development for years to come. Outdoor play time is not only great exercise but helps promotes the physical, imaginative, social and cognitive development of your Kids. BestPriceToys.com now carries the famous name brand of Swing-N-Slide.