9 Inch RTA Foundation California King Foundation (M45X-SI)

• Twin (M45X12)
• Full (M45X22)
• Queen (M45X32)
• King (M45X42)
• California King Foundation (M45X52)
• Twin XL Foundation (M45X72)

• Stability that’s built to last. This 9-inch foundation is engineered to provide support you can count on, evenly distributing mattress weight across the frame. Its solid, sturdy construction minimizes motion and sagging. And it’s easy to assemble and disassemble for your convenience, with no tools required.
  Details:
  

  1. Made with wood
  2. Black fabric cover
  3. Assembly required; no tools needed
  Assembly: No Assembly Required
  Unit Dimensions: 37''W x 74''D x 9''H
  SKU: M45X12
  UPC: 024052983944
  Status: New Since: 5/11/2026 5:00:00 AM
• Stability that’s built to last. This 9-inch foundation is engineered to provide support you can count on, evenly distributing mattress weight across the frame. Its solid, sturdy construction minimizes motion and sagging. And it’s easy to assemble and disassemble for your convenience, with no tools required.
  Details:
  

  1. Made with wood
  2. Black fabric cover
  3. Assembly required; no tools needed
  Assembly: No Assembly Required
  Unit Dimensions: 53''W x 74''D x 9''H
  SKU: M45X22
  UPC: 024052983951
  Status: New Since: 5/11/2026 5:00:00 AM
• Stability that’s built to last. This 9-inch foundation is engineered to provide support you can count on, evenly distributing mattress weight across the frame. Its solid, sturdy construction minimizes motion and sagging. And it’s easy to assemble and disassemble for your convenience, with no tools required.
  Details:
  

  1. Made with wood
  2. Black fabric cover
  3. Assembly required; no tools needed
  Assembly: No Assembly Required
  Unit Dimensions: 60''W x 79''D x 9''H
  SKU: M45X32
  UPC: 024052983968
  Status: New Since: 5/11/2026 5:00:00 AM
• Stability that’s built to last. This 9-inch foundation is engineered to provide support you can count on, evenly distributing mattress weight across the frame. Its solid, sturdy construction minimizes motion and sagging. And it’s easy to assemble and disassemble for your convenience, with no tools required.
  Details:
  

  1. Made with wood
  2. Black fabric cover
  3. Assembly required; no tools needed
  Assembly: No Assembly Required
  Unit Dimensions: 75''W x 79''D x 9''H
  SKU: M45X42
  UPC: 024052983975
  Status: New Since: 5/11/2026 5:00:00 AM
• Unit Dimensions: 71''W x 83''D x 9''H
  SKU: M45X52
  UPC: 000
  Status: New Since: 11/3/2026 5:51:00 PM
• Unit Dimensions: 38''W x 79''D x 9''H
  SKU: M45X72
  UPC: 000
  Status: New Since: 11/3/2026 5:51:00 PM

Product Information