Mattresses & Boxsprings › Boxsprings & Foundations › California King

Take your nighttime comfort to the next dreamy level with our luxurious and su... Take your nighttime comfort to the next dreamy level with our luxurious and supportive Mattress Foundations. Box edge frames are hand built by Amish craftsmen from solid spruce wood in three profiles, Slim, Low and High, to custom fit your bed and... more

Take your nighttime comfort to the next dreamy level with our luxurious and su... Take your nighttime comfort to the next dreamy level with our luxurious and supportive Mattress Foundations. Box edge frames are hand built by Amish craftsmen from solid spruce wood in three profiles, Slim, Low and High, to custom fit your bed and... more

Take your nighttime comfort to the next dreamy level with our luxurious and su... Take your nighttime comfort to the next dreamy level with our luxurious and supportive Mattress Foundations. Box edge frames are hand built by Amish craftsmen from solid spruce wood in three profiles, Slim, Low and High, to custom fit your bed and... more

The CoCoBase Mattress Base is made with a 5 inch durable coconut fiber coconut... The CoCoBase Mattress Base is made with a 5 inch durable coconut fiber coconut coir. This new material created by untwisting coconut husks is infused with natural latex. The Spring like qualities of Coconut Coir can be built to utilize the natural... more

|| Fremont & Park - Gaia Collection || Providing support to your California Ki... || Fremont & Park - Gaia Collection || Providing support to your California King mattress is the Gaia mattress foundation. The black metal framing of the support system features a white and gray two-tone cover. more

Designed to cater to your busy lifestyle and built to last, this innovative fo... Designed to cater to your busy lifestyle and built to last, this innovative foundation is ready to assemble in the comfort of your home. The unique shippable design is the perfect alternative to the standard box spring. Constructed of sturdy metal... more

Your comfort and pure, restful nightly sleep are more consistent than ever whe... Your comfort and pure, restful nightly sleep are more consistent than ever when you add our two inch Amo California king size box spring mattress foundation to your bed. more

The organic cotton deluxe foundation is designed to perfectly complement your ... The organic cotton deluxe foundation is designed to perfectly complement your Naturepedic mattress. Our certified organic foundations are strong and sturdy for long-lasting support. They're made with FSC-certified North American wood and feature... more

Keep your bed sleek and simple with this two-inch Cali king size bunkie board ... Keep your bed sleek and simple with this two-inch Cali king size bunkie board from Furniture of America. more

Supportive, sturdy, and easy on the eyes too, this foundation is your one-and-... Supportive, sturdy, and easy on the eyes too, this foundation is your one-and-done solution for convenient mattress support. Featuring a durable steel frame and solid wood legs, this standing box spring features simple, bolt-free assembly and comes... more

High-grade durable steel is configured and welded into a unique design for dyn... High-grade durable steel is configured and welded into a unique design for dynamic support of Kingsdown mattresses to further optimize mattress performance and support the body for optimal sleep through the night. Size: California King, Profile:... more

High-grade durable steel is configured and welded into a unique design for dyn... High-grade durable steel is configured and welded into a unique design for dynamic support of Kingsdown mattresses to further optimize mattress performance and support the body for optimal sleep through the night. Size: California King, Profile: Low... more

We are a proud manufacturer of the finest quality mattresses and box springs, ... We are a proud manufacturer of the finest quality mattresses and box springs, with the highest standards in durability, quality, comfort, and beauty. All of our products are to ensure that you get only the best. Size: California King, Profile: Low... more

We are a proud manufacturer of the finest quality mattresses and box springs, ... We are a proud manufacturer of the finest quality mattresses and box springs, with the highest standards in durability, quality, comfort, and beauty. All of our products are to ensure that you get only the best. Size: California King, Profile: Standard... more

Sleep like a baby on the Myrtlewood California King-size mattress foundation a... Sleep like a baby on the Myrtlewood California King-size mattress foundation and wake up to a new day feeling relaxed and rejuvenated. Specifications: Case: 1Set/2Ctn/31.5'/70LbsSize: 84" x 72" x 7"HFinish: GrayMaterials: Mattress | Alwyn Home... more

Designed to cater to your busy lifestyle and built to last, this innovative fo... Designed to cater to your busy lifestyle and built to last, this innovative foundation is ready to assemble in the comfort of your home. The unique shippable design is the perfect alternative to the standard box spring. Constructed of sturdy metal... more

This 5-inch low-profile box spring is meticulously crafted to offer exceptiona... This 5-inch low-profile box spring is meticulously crafted to offer exceptional support for any mattress. While selecting the perfect mattress is a crucial aspect of creating an ideal sleeping environment, it's equally important to consider the... more

This box spring offers support, durability, and reduced motion. When used with... This box spring offers support, durability, and reduced motion. When used with a proper supportive bed frame, it helps prevent sagging and bowing for the life of the mattress. Profile: Standard, Size: California King | Beautyrest Triton Foundation Wood... more

This box spring offers support, durability, and reduced motion. When used with... This box spring offers support, durability, and reduced motion. When used with a proper supportive bed frame, it helps prevent sagging and bowing for the life of the mattress. Size: California King, Profile: Low | Beautyrest Triton Foundation Wood in... more

9inch All wood foundation Size: California King Split | Corsicana Mattress Hos... 9inch All wood foundation Size: California King Split | Corsicana Mattress Hospitality 9Inch Wood Foundation Cal King Wood in White | 9 H x 36 W x 84 D in | Wayfair more