Serta High Profile 9-Inch Box Foundation

A Supportive Foundation. A Higher Bed Profile. A Better-Finished Bedroom.

The Serta High Profile 9-Inch Box Foundation provides a sturdy, fabric-covered support base for a compatible mattress. Offered in Twin, Twin Long (Twin XL), Full, Queen, and King size options, this American-made foundation brings a traditional bed height to sleep setups at Mack's Mattress Megastore inside Gallery Furniture.

Whether completing a guest bedroom or refreshing a primary suite, a properly matched foundation gives the mattress an even support surface without changing the mattress's selected comfort level.

Why Choose the Serta High Profile 9-Inch Box Foundation:

• 9-inch high profile: Adds 9 inches beneath the mattress for a taller bed setup. Overall bed height also depends on the mattress and frame.
• Wood construction: A wood support structure and fabric cover create a stable base for a compatible mattress.
• Reinforced support: Reinforced edges and center support help distribute the mattress load across the foundation.
• Five size options: Choose Twin, Twin Long (Twin XL), Full, Queen, or King. Check the selected option for current availability.
• Twin dimensions: 38 inches W × 75 inches L × 9 inches H.
• Twin Long / Twin XL dimensions: 38 inches W × 80 inches L × 9 inches H.
• Full dimensions: 54 inches W × 75 inches L × 9 inches H.
• Queen dimensions: 60 inches W × 80 inches L × 9 inches H.
• King setup: Two matching Twin XL foundations support a standard King mattress. Confirm the King option's set contents before ordering; a single Twin XL foundation is not a complete King set.
• Fully assembled foundation: The foundation arrives assembled, ready for placement on an appropriate supporting bed frame.
• Made in USA: American-made construction, as identified in the Serta foundation product specifications.
• Fit matters: Match the foundation to the mattress size, bed frame, and mattress manufacturer's support requirements rather than assuming universal compatibility.

Engineered for Stable Mattress Support

Support structure: The wood foundation provides an even base beneath a compatible mattress.

Reinforcement: Edge and center reinforcement support a stable sleep setup when used with the correct bed frame.

Fabric exterior: The fabric-covered finish creates a neat appearance beneath the mattress. This is a stationary foundation, not a powered adjustable base.

Gallery Furniture Guarantee

• ✅ FREE Same Day Delivery in Houston: Available in the Greater Houston Area on qualifying in-stock purchases of $1,000 or more, subject to scheduling.
• ✅ FREE Greater Houston delivery: On purchases of $1,000 or more. Greater Houston deliveries receive a 3–4 hour delivery window.
• ✅ White Glove delivery: Gallery Furniture delivers and places the foundation in the home.
• ✅ FREE setup and installation: Included with qualifying delivery.
• ✅ FREE old furniture haul-off: Gallery Furniture hauls off the item being replaced with qualifying delivery.
• ✅ Made in USA: This Serta high-profile foundation is American-made.
• ✅ Personal follow-up: Mack calls the day after delivery or pickup to make sure everything went smoothly and the customer is happy with the experience.

For out-of-Texas delivery pricing, call Mack at 281-844-1963.

Complete a supportive sleep setup with the right foundation size from Mack's Mattress Megastore inside Gallery Furniture. Select a size to review availability, or ask the sleep team to confirm the mattress, foundation, and frame fit together.

Perfect for shoppers seeking a traditional 9-inch-high box foundation for a Twin, Twin XL, Full, Queen, or King mattress setup.