Promotional FrameKnickerbocker is Americas premier manufacturer of stylish and attractive heavy duty bed frames and bedding support systems. They are a fourth generation family owned and operated company in business since 1919. Knickerbocker remains the only bed frame supplier committed to manufacturing all of its products here in the United States. The Promotional Bed Frame can be adjusted to fit a twin, full and or queen size mattress and box set. Knickerbocker is