Any swing seat should be at least 17 inches long by 8 inches wide by 1 inch deep. A deeper swing will be sturdier but can be more difficult to work with while you make it.

How big is a swing?

The most common deck heights on swing sets are 4-6-ft. Some companies make 7-ft mega sets, and most companies have higher end playsets that have two decks – usually one 5-ft deck and one 7-ft deck, or one 6-ft deck and one 8-ft deck.

How far apart are the chains on a swing?

Lay-out and Install Swing Hanger Hardware The optimal safe distance between each swing is 18 inches. For most swing attachments you want a spacing of 16 inches between each pair of hangers.