King Koil Box Spring
Best durable foundation for those navigating tight hallways and staircases.
This foundation prioritizes structural integrity with a robust steel design that keeps your mattress from sagging over time. The split-piece construction makes navigating tight stairwells and hallways painless, though you’ll have to sacrifice compatibility with adjustable bases to get this level of traditional, long-lasting support.
$319.00
More Foundation options
Who it's for
- Sleepers wanting to extend their mattress lifespan
- People preferring a classic, elevated bed height
- Shoppers seeking reliability from a trusted sleep brand
Who should skip it
- People living in homes with narrow hallways or stairs
- Owners of specific memory foam or hybrid mattresses
- Individuals using thick mattresses who need lower profiles
Performance breakdown
Structural Integrity
Semi-Flex steel construction provides a rigid, sag-resistant foundation for heavy mattresses.
Maneuverability
Split-design makes navigating tight hallways and staircases significantly easier.
Longevity
Ten-year warranty coverage signals high confidence in long-term material durability.
Setup Convenience
Arrives fully assembled, eliminating the frustration of complex home construction.
Versatility
Incompatibility with adjustable bases limits future bedroom configuration options.
Build Quality
Reliable American manufacturing standards ensure consistent performance and reliable support.
Key Specs
Foundation Type
Box Spring
Height
9 inches
Frame Material
Steel
Assembly Required
No
Weight Capacity
0.0 lbs
Support Type
Coil Support
Adjustable Base Compatible
No
Remote Control
No
Under Bed Clearance
0.0 inches
Foldable
No
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Ask Metto anything about the King Koil Box Spring before you decide.
