Knickerbocker
Knickerbocker Bedbeam II™ Replacement Support Frame
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Description
Upgrade your sleep foundation with the Knickerbocker BedBeam II™, a patented replacement slat system engineered to dramatically improve support, stability, and mattress longevity.
Instead of relying on flexible or aging wood slats, the BedBeam II™ uses twin railroad-grade steel beams and a reinforced composite center column to deliver unmatched strength with zero flex. Designed to attach directly to your bed’s wooden side-rail cleats, this system eliminates sagging, redistributes weight evenly, and ensures your mattress performs at its best for years to come. Installation is quick and secure thanks to Knickerbocker’s innovative drop-and-lock technology.
Best for sleepers seeking a stronger foundation without replacing their existing bed frame, the BedBeam II™ offers American-made durability, superior engineering, and long-lasting comfort.
Includes:
- BedBeam II™ steel support system (adjustable to Full, Queen, and King sizes)
- Two wide-attachment housings
- Molded composite center support column
Features & Benefits:
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Superior Steel Support: Twin railroad-grade steel beams provide rigid, non-flexing support that far exceeds traditional
wooden slats. -
Eliminates Sagging: Reinforced composite column keeps the
mattress level and prevents mid-frame dip, improving comfort and extending mattress life. - Secure Rail Attachment: Wide-attachment housings lock into the wooden side-rail cleat for a firm, unmoving foundation.
- Drop & Lock Technology: Ensures the center support column secures instantly and safely into place—no wobbling or shifting.
-
Enhanced Comfort & Performance: Maintains a consistent, even sleep surface for better spinal alignment and mattress
durability. - Versatile Compatibility: Works with most platform beds and adjustable bases when used as a slat replacement.
Materials & Construction:
- Made in the USA
- Heavy-duty composite materials
- Twin steel beams engineered for exceptional strength
- Molded composite center column with dual rivet reinforcement
Size Adjustability & Requirements:
- Fits Full, Queen, and King bed frames
- Required inside rail width: Full: 53¼"–55½"; Queen: 59⅜"–63½"; King: 75⅜"–79½"
- Must have a wooden side rail with a cleat positioned 5"–18" from the floor
We have purchased all of our bedding for the last 30 years from City Mattress and your products and services have been consistently excellent. Thank you!!!Newton B. Green II