King Koil

Whitby Foundation


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Give your new mattress the support it needs to perform at its absolute best by adding King Koil’s Whitby Foundation, available in a 5-inch low profile or 9-inch standard height to fit your needs. Well-crafted for lasting quality, this wood frame foundation, also known as a box spring, utilizes a Nordic hardwood frame combined with a semi-flex steel inner body. Extending the lifespan of your mattress and promoting a more restful night’s sleep— the sleek design allows it to blend easily into various bedroom atmospheres.


  • Includes foundation only
  • Available Heights: 9” Standard or 5” Low-Profile
  • Nordic hardwood framing support.
  • Semi-flex steel inner body
  • Complete your sleep sanctuary by pairing this foundation with the King Koil Whitby Euro Top Innerspring Mattress
  • Warranty: 10 year
Perfect timing...couldn't be more happy with the delivery of my daughters new bed. Jay Weingart