King Koil
King Koil Standard 9" Box Spring - Queen
The King Koil Standard 9" Box Spring provides a robust and reliable foundation for your mattress, ensuring lasting support and comfort. Featuring a Semi-Flex™ steel design, this box spring is built for durability. It arrives in two pieces, making it easier to maneuver through tight spaces. Crafted in the USA with imported and domestic parts, it offers a strong base for your bed. Please note that this box spring is not compatible with adjustable bases. It comes with a 10-year warranty for peace of mind.
$319.00
Owner Satisfaction
4.3
/ 5
Category Rank
725
/ 836
#725 in Mattress Foundations
Price vs Category Average
-72%
Below average
Construction
Flex Steel
/ Flex Steel
Who it's for
- Enhanced Mattress Support
- Traditional Bed Height
- Trusted Brand Foundation
Who should skip it
- Potential for Excessive Height
- Challenging Maneuverability
- Compatibility with Modern Mattresses
Key Specs
Construction
Flex Steel
Design
Semi-Flex™
Warranty
10-year
Height
9 inches
Made in the USA of imported and domestic parts
Features
- Provides strong and lasting support for your mattress
- Semi-Flex™ steel design for enhanced durability
- Split design for easier maneuverability
- Made in the USA
What customers say
Customers consistently praise the King Koil Standard 9 inch Box Spring for its exceptional quality and robust reliability. Many highlight its sturdy construction, noting how it provides excellent foundational support for their mattress, which contributes positively to their sleep experience. Reviewers frequently mention the product's durability, suggesting it is a long lasting investment. The general consensus points to a well made item that delivers on its promise of solid support and lasting performance, offering good value for its price.
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$319