Quick Assemble Heavy Duty High Profile Springless Boxspring – 8.25″




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  • Made With Pride in the USA!
  • All Wood High Profile Construction 
  • Heavy Duty 8.25″ Tall Foundation
  • Better Support: Designed to support Latex Mattresses, Memory Foam, Gel, Coil Springs, Airbeds, and Hybrid Mattresses.
  • 14  Extra Wide Bed Slats: Closely spaced for total mattress support and better breathability.
  • Easy Quick Assembly: Approximate assembly time is about 15 Minutes. No tools are needed.
  • Fits Tight Spaces: Replaces Expensive Split Box Spring. Ideal for tight stairways, hallways, or any spaces where a 1-piece box spring does not fit.
  • Fast & Free Shipping

Learn More Below:

Price Includes:
SKU: KDHPfound-Parent Categories: , Tags: , , ,


1-Piece Quick Assemble Heavy Duty High Profile Boxspring – Can Replace Split Box Springs


Walk it easily through your home and assemble it in your bedroom. This is a quick assemble heavy duty high profile foundation which makes it easy to get into your home.


Durable Construction

The Quick Assemble Heavy Duty High Profile Springless Boxspring is built to last. Constructed with high-quality materials, this boxspring is able to support heavy loads and resist wear and tear. The heavy-duty design ensures that this boxspring will provide a sturdy foundation for your mattress, ensuring a comfortable and restful night’s sleep.


Easy Assembly

This boxspring is designed with ease of assembly in mind. With its quick assembly design, you can have it set up in no time. No need to struggle with complicated instructions or complicated tools, this boxspring can be assembled quickly and easily.


High Profile Design

The high-profile design of this boxspring provides a sleek and modern look. The 8.25″ height is perfect for those who prefer a higher bed or those who want to give their room a more modern feel. This boxspring also provides ample storage space underneath the bed so that you can maximize your living space.


Compare Ours To Theirs


Ours: We do not sacrifice building materials, strength, and durability for profitability. The Heavy Duty knocked down, solid wood foundation is built exclusively for STL Beds and our rigid standards. It is the best support system for your hard-earned money. We stand behind our quality and encourage you to compare this to any big brand name boxspring or foundation. Why?


Because our heavy-duty wood foundation starts by doubling the total number of wooden slats to 14 you will receive with your new system. Each slat is 2 1/2 inches wide and made from Canadian spruce and fir. No matter what size you choose, each corner will bolt securely together with a large carriage bolt to secure the mainframe together. Then it is reinforced with two wooden dowel rods. All foundation sizes include a solid wood I-Beam running head to toe that includes extra support blocks for added strength.


Compare this to our competition who typically uses nothing more than a 1 3/8  wide, flimsy piece of wood for center support and with no reinforced support. STL Beds adds additional wood blocks for extra side strength down each side of the foundation for seating.  We only use solid wood to provide optimal support for your new or old mattress.


Theirs: The majority of the box springs and foundations built today are stapled together using only 7 to 8 wood support slats. The wooden slats are typically only 1 1/2 inches wide instead of 2.5 inches wide. They include no middle or side strength reinforcement for strong seat edge support. The majority of brand-name foundations are supported by a flimsy wire support grid. In fact, the only advantage of a system like this is that they are lightweight which usually seems like a plus until you realize it is because they give you little substance, and shoddy construction all while charging crazy exorbitant costs.



What Kind Of Mattress Can I Use This Box Spring With?

The STL Beds Quick Assemble High Profile 8.25″ tall heavy-duty foundation can be used underneath virtually any type of mattress including memory foam beds, all bed-in-a-box types of mattresses, latex mattresses, coil spring, pocketed coil beds, and hybrid beds. The slats are spaced 2 3/4 apart to provide the necessary support for all of the listed mattresses.


The foundation comes with a luxurious encased cover that completes the look of your mattress set. The neutral white-colored cover allows for it to coordinate with virtually any mattress color and design. The zippered encasement fully encases the foundation for a beautifully tailored look.


Your new knockdown mattress support system comes with all the necessary parts for trouble-free assembly. The estimated time to remove the packaging and assemble is 15 – 30 minutes. The foundation comes in pieces making it a one-person job. Carry the foundation into the desired room piece by piece or in the box. This is a smart alternative to the traditional two-person carry of a traditional bulky box spring. No tools are needed to turn this dream into a reality. Everything you need comes standard.


This Knock Down (KD) Wood Mattress foundation is shipped directly to your house. This springless box spring can be knocked down and moved at your convenience, making it easier to move than your ridged one-piece box spring or costly split box foundations. It is ideal for tight spaces such as upstairs where your traditional foundation or box spring may have fitment issues.


Assembly Instructions

Additional information

Weight 94 lbs

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Product Features

Features & Benefits:


  • Made with pride in the USA!
  • Solid Wood- all wood construction with zero composite kinds of wood like particle board or flimsy metal tabs that bend easily.
  • Standard Foundation Height– 8.25” the most popular height. Looks good. The most popular height for entry and exit.
  • Personal Mobility– elevates mattress to a more normal bed height. When determining the finished bed height be sure to add your frame, mattress, and foundation heights together. This is the point where you need to determine if this finished height is good for kids so they can easily climb into bed with you. Aging pets that won’t have to climb so high. Elderly will get in and out be a problem or could they fall out of bed?
  • Ease Of Moving– move it assembled or take it apart for a lightweight moving that can be done by one person with ease. When unassembled this foundation can fit through very tight spaces and even through low overhangs where 1-piece boxsprings normally will not fit. The foundation can be assembled in the bedroom.
  • Even Mattress Support– consistent and even weight distribution for better support and longer mattress life.  Helps prevent that annoying middle mattress ridge associated with two-piece foundations.
  • Wider Slats & More Of Them– 14 solid wood 2 1/2-inch-wide slats include head and foot end wood end frames with block reinforcement.
  • Closely Spaced Slats– the distance between each wood slat is 2 3/4
  • Bolted Together– bolted together in each corner with a carriage bolt. Also includes wooden dowel rods for additional strength.
  • Less Movement– no bouncy coil springs for unmatched motion isolation so your sleeping partner is not disturbed during the night.
  • Solid I-Beam Construction– heavy-duty head-to-toe center support included with each and every foundation size. Includes extra support blocks.
  • Stronger Seat Edge Support– extra wood block supports down each side for reinforcement for sitting when entering, and exiting the bed. Includes All Necessary Hardware– (no tools required for assembly)
  • Fits All Types Of Bed Frames– Hollywood, steel, platform, beds with headboards, and footboards.
  • Weight capacity– can support up to 1500 pounds
  • Nightstand access– helps put your nightstand within reach for better access and ease of use.
  • Zippered fabric cover: this cover installs easily. Pull over the foundation and zip it closed.

Heavy Duty Quick Assemble Dimensions, And Weight


Finished Sizes:

  • Twin- Length: 74” Width:38” Height: 8.25” Weight 39 lbs.
  • Twin Extra Long- Length: 80” Width:38” Height: 8.25” Weight 42 lbs.
  • Full- Length: 74” Width:54” Height: 8.25” Weight 52 lbs.
  • Queen- Length: 80” Width:60” Height: 8.25” Weight 64 lbs. Queen Ships in one box. When assembled Queen is a one-piece foundation.
  • King- Length 80” Width:76” Height: 8.25” Weight 83 lbs. King Ships in one box. When assembled King is a one-piece foundation.
  • California King- Length: 84” Width:72” Height: 8.25” Weight 83 lbs. King Ships in one box. When assembled King is a one-piece foundation.

This is an excellent substitute for a Split Queen Box Spring and Split Full Box Spring. Simply Carry the unassembled box into your bedroom and put it together


Cardboard Shipping Box Measures Approximately 12 x 13 x 77 (This is NOT the completed size when assembled. Measurement is for the pieces packaged / shipping dimensions)


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