Rainy Day Indoor Support Bar (For Swings) The Rainy Day Support Bar has been safety tested by Bureau Veritas Consumer Products Services. "Standard consumer safety performance for Home Playground Equipment." The Support Bar is designed to be installed in any doorway measuring 29" to 36" wide, and any doorway with or without a frame Extension plugs (sold separately) would allow the support bar to expand to 44" Support Bar is portable, with easy installation Fun for all children