Best Cal King Box Spring 9 Inch in 2025
Updated on 17/05/2025
#1
Recommended
Free Shipping
- Provides strong support for any mattress with its steel structure and closely spaced wood slats
- Twin size has a weight capacity of 350 lbs; other sizes can support up to 700 lbs
- 9-inch height suitable for shorter mattresses or higher bed placement
- All parts and tools are conveniently packaged for easy delivery
- Includes a 5-year limited warranty; requires a separate bed frame or platform for use
Read More
- Provides strong support for any mattress with its steel structure and closely spaced wood slats
- Twin size has a weight capacity of 350 lbs; other sizes can support up to 700 lbs
- 9-inch height suitable for shorter mattresses or higher bed placement
- All parts and tools are conveniently packaged for easy delivery
- Includes a 5-year limited warranty; requires a separate bed frame or platform for use
#2
Value for Money
Free Shipping
- 【PRACTICAL & DURABLE】9" california king box spring, sturdy steel internal frame provides a stable support platform for the mattress. No squeaks. Ensure your excellent sleep quality every night.
- 【QUICK & EASY ASSEMBLY】Integrated structure design, easy to assemble. All parts of the cal king box spring, assembly tools and instructions are included in the package.
- 【EASY TO CLEAN】High quality fabric cover, easy to removable for spot cleaning.
- 【HIHG PROFILE DESIGN】9 inch height is perfect for shorter mattresses or for people who prefer their bed to be higher off the floor.
- 【2 year limited worry-free warranty】RLDVAY California king box spring only, bed frame or platform bed is required to support this box spring and is sold separately.
Read More
- 【PRACTICAL & DURABLE】9" california king box spring, sturdy steel internal frame provides a stable support platform for the mattress. No squeaks. Ensure your excellent sleep quality every night.
- 【QUICK & EASY ASSEMBLY】Integrated structure design, easy to assemble. All parts of the cal king box spring, assembly tools and instructions are included in the package.
- 【EASY TO CLEAN】High quality fabric cover, easy to removable for spot cleaning.
Read More
#3
12% Off
Free Shipping
- Ultra-durable steel construction for strength and stability
- Twin/twin XL sizes support up to 350 lbs; other sizes support up to 700 lbs
- Quick and easy assembly with minimal tools needed
- Compact packaging for easy delivery and storage
- Includes a 5-year limited warranty; requires bed frame or platform bed sold separately
Read More
- Ultra-durable steel construction for strength and stability
- Twin/twin XL sizes support up to 350 lbs; other sizes support up to 700 lbs
- Quick and easy assembly with minimal tools needed
- Compact packaging for easy delivery and storage
- Includes a 5-year limited warranty; requires bed frame or platform bed sold separately
#4
Free Shipping
- Box spring designed for California King size beds, capable of supporting up to 3,000 lbs due to its robust steel construction.
- Includes clear instructions for quick and easy assembly.
- Designed to minimize noise for a quiet sleep experience.
- Fabric cover compatible with various memory foam and hybrid mattresses.
- Dimensions: 83.6"L x 71.6"W x 9"H.
Read More
- Box spring designed for California King size beds, capable of supporting up to 3,000 lbs due to its robust steel construction.
- Includes clear instructions for quick and easy assembly.
- Designed to minimize noise for a quiet sleep experience.
- Fabric cover compatible with various memory foam and hybrid mattresses.
- Dimensions: 83.6"L x 71.6"W x 9"H.
#5
Free Shipping
- Engineered with reinforced joints and heavy-duty metal slats for enhanced stability and support, accommodating up to 3000 lbs.
- 9-inch height provides a low-profile design that suits various mattress types, including innerspring, memory foam, and latex.
- Designed to prevent noise and promote durability for a quiet sleeping environment.
- Assembly is straightforward with clear instructions and all necessary tools included, allowing for quick setup.
- Includes a fabric cover with elastic band to keep the mattress in place, which is also easy to remove for cleaning.
Read More
- Engineered with reinforced joints and heavy-duty metal slats for enhanced stability and support, accommodating up to 3000 lbs.
- 9-inch height provides a low-profile design that suits various mattress types, including innerspring, memory foam, and latex.
- Designed to prevent noise and promote durability for a quiet sleeping environment.
- Assembly is straightforward with clear instructions and all necessary tools included, allowing for quick setup.
Read More
#6
Free Shipping
- Enhances mattress comfort and stability
- Compatible with all mattress types
- Supports up to 350 lbs for Twin; up to 700 lbs for larger sizes
- Simple tool-free assembly
- Sturdy steel construction with horizontal slats
- Removable zip cover for easy cleaning
Read More
- Enhances mattress comfort and stability
- Compatible with all mattress types
- Supports up to 350 lbs for Twin; up to 700 lbs for larger sizes
- Simple tool-free assembly
- Sturdy steel construction with horizontal slats
- Removable zip cover for easy cleaning
#7
Free Shipping
- No box spring required; supported by durable metal slats spaced 7.83 inches apart to prolong the lifespan of various mattress types.
- Simple assembly with all necessary parts and instructions included, allowing setup in 20-30 minutes.
- Sleek, minimalist design that complements modern bedroom aesthetics and fits seamlessly with existing decor.
- Constructed from high-quality metal with reinforced legs for stability; holds up to 1000 pounds in weight.
- Designed to minimize noise with a stable square frame and includes anti-scratch foot covers to protect flooring.
Read More
- No box spring required; supported by durable metal slats spaced 7.83 inches apart to prolong the lifespan of various mattress types.
- Simple assembly with all necessary parts and instructions included, allowing setup in 20-30 minutes.
- Sleek, minimalist design that complements modern bedroom aesthetics and fits seamlessly with existing decor.
- Constructed from high-quality metal with reinforced legs for stability; holds up to 1000 pounds in weight.
Read More
#8
Free Shipping
- Sturdy metal slats and reinforced steel frame provide excellent durability and weight distribution, supporting up to 3000 lbs and minimizing sagging.
- At 9 inches in height, this box spring is compatible with various mattress types, offering an elevated sleeping experience.
- Assembly is quick and easy with all components, tools, and instructions conveniently packed in one box.
- Designed for quiet operation, the welded pole and support frame construction prevents noise during movement, ensuring undisturbed sleep.
- Includes a high-quality elastic cover that is shrink and wrinkle-resistant, keeps the mattress secure, and is easy to remove for cleaning.
- This box spring requires a bed frame or platform bed for support, but can also be used as a standalone frame thanks to its robust construction.
Read More
- Sturdy metal slats and reinforced steel frame provide excellent durability and weight distribution, supporting up to 3000 lbs and minimizing sagging.
- At 9 inches in height, this box spring is compatible with various mattress types, offering an elevated sleeping experience.
- Assembly is quick and easy with all components, tools, and instructions conveniently packed in one box.
Read More
#9
17% Off
Free Shipping
- Sustainable delivery in a compact WonderBox, designed for easy maneuvering through tight spaces
- Assembly requires no tools and takes only minutes
- Adjustable height options of 5 inches or 9 inches for personalized comfort
- Sturdy steel frame ensures durability and enhances mattress longevity
- Includes a 5-year warranty; requires a compatible bed frame or platform bed for support
Read More
- Sustainable delivery in a compact WonderBox, designed for easy maneuvering through tight spaces
- Assembly requires no tools and takes only minutes
- Adjustable height options of 5 inches or 9 inches for personalized comfort
- Sturdy steel frame ensures durability and enhances mattress longevity
- Includes a 5-year warranty; requires a compatible bed frame or platform bed for support
#10
Free Shipping
- 8-inch height compatible with various mattress types, enhancing bedroom aesthetics.
- Includes a high-quality removable cover for protection and easy cleaning.
- Precision design ensures noiseless operation during use.
- Reinforced heavy-duty metal slats provide enhanced stability and load-bearing capacity.
- User-friendly assembly process with clear instructions for quick setup.
Read More
- 8-inch height compatible with various mattress types, enhancing bedroom aesthetics.
- Includes a high-quality removable cover for protection and easy cleaning.
- Precision design ensures noiseless operation during use.
- Reinforced heavy-duty metal slats provide enhanced stability and load-bearing capacity.
- User-friendly assembly process with clear instructions for quick setup.
4 Inch Box Spring Queen Fully Assembled
See All
Cheap Queen Size Mattresses And Box Spring Set
See All
Box Spring Full Size Bed Frame
See All
