Extra Heavy Duty Full to Queen Convertible Bed Frame



Upgrade your bedroom without the hassle of buying new furniture. With our Full to Queen Extra Heavy Duty Bed Frame Converter, you can significantly increase your sleeping surface. Say goodbye to the limitations of a full-size bed and enjoy the spaciousness of a queen-size mattress.



Price Includes:


Extra Heavy Duty Full to Queen Convertible Bed Frame


Upgrade your bedroom without the hassle of buying new furniture. With our Full to Queen Extra Heavy Duty Bed Frame Converter, you can significantly increase your sleeping surface. Say goodbye to the limitations of a full-size bed and enjoy the spaciousness of a queen-size mattress.


The Birth of the Extra Heavy Duty Convertible Bed Frame

Our journey began by collaborating with various bed frame partners, each known for their unique strengths. We saw an opportunity to combine the best elements from different bed frame builders, much like putting together a puzzle. The result? The Extra Heavy Duty Bed Frame Converter, an industry game-changer.


Why The STL Beds Convertible Frame Stands Out


  • More Space: Upgrade your mattress size from a 54-inch wide full to a roomier 60-inch wide queen without replacing your entire bed or bedroom set. Additionally, the mattress length will increase from 75″ to 80″.
  • Seamless Transition: Keep your existing bed & bedroom furniture set that matches your style. Effortlessly converts your full-size bed frame to accommodate a queen-size mattress without replacing your beloved full-size headboard and footboard.
  • Unmatched Strength: Distinguishes itself from competitors with three cross support bars (head, foot, and middle) compared to the standard single support bar, offering unparalleled stability and durability.
  • Enhanced Bed Integrity: Each support bar is strategically placed to ensure even distribution of weight and prevent sagging, enhancing the longevity of both the frame and the mattress.
  • Extended Mattress Life: Meets or exceeds all manufacturer warranty requirements, providing optimal support for any boxspring and mattress.


How It Works:

  • Advanced Retention Mechanism: Features Retainer L-Brackets that adjust to accommodate the queen mattress size, firmly holding the foundation/boxspring into place.
  • Customizable Support: The Adjustable Center Support System provides extra strength required by queen bedding, with cross arms and height-adjustable glides that fit your full-size headboard and footboard.


Durability and Specifications:

  • Exceptional Build Quality: Comprises durable high carbon USA railroad steel side rails (1 1/2″ x 1 1/2″ x 12 GA) and cross arms (1 1/4″ x 1 1/4″ x .100″).
  • Designed for Full to Queen Conversion: Expertly tailored for headboards and footboards from full-size beds, adapting them for queen-size mattresses with superior support.


Product Details:

  • Queen Mattress Compatible: Use a queen-size mattress and box spring with your full-size headboard and footboard.
  • Triple Support Advantage: Three center supports (head, middle, foot) for unmatched stability and strength. Includes 3 adjustable threaded feed for stability and support for each bar.
  • Accommodating Dimensions: Fits the width and length of a queen mattress (60” x 80″). Includes 3 adjustable center support legs which allow (adjusting from 6.5” up to 15.5″). Side rails measure (83″ long)



More Information:


At STL Beds, we’ve leveraged our decades of experience and industry knowledge to create a convertible frame like no other. Our Extra Heavy Duty Bed Frame Converter is designed to exceed expectations and provide the sturdy foundation your mattress set deserves. Say goodbye to compromises and hello to uncompromising strength and support. It’s not just a frame; it’s a testament to our commitment to delivering the best for our customers.


Exceptional Strength and Support
Its unmatched strength, sturdiness, and support set our Extra Heavy Duty Bed Frame Converter apart. We’ve integrated more bars and feet into the design to ensure it can withstand the daily demands of even the heaviest couples, all while safeguarding your bed from any potential damage.

Diverse Origins, Ultimate Performance
Because our Extra Heavy Duty Bed Frame Converter is crafted from different sources, you may notice slight variations in color. However, it’s important to remember that bed frames are typically hidden from view in most applications, making color consistency a non-issue. What truly matters is the exceptional performance it delivers.

The Pinnacle of Conversion Frames
While our Extra Heavy Duty Bed Frame Converter may not be the flashiest or sexiest frame on the market, it does precisely what we promise it will do – and more. It offers unparalleled strength, reliability, and durability, making it the ultimate choice for those seeking a reliable solution to expand their sleeping space without compromising on quality.

For Thicker Mattresses:
If you have a thicker mattress and need to lower the height of your mattress set, check out our DRCV1L option. This is not available with the 3 crossbars and 3 feet.

Additional Information:

Global Standards: Meeting American market specifications and sizes.
Lifetime Warranty: Full warranty on all steel parts, reflecting our commitment to quality and customer satisfaction.


Upgrade Your Bed Today with the STL Beds Converter for a More Comfortable Sleep!


Seeking a Budget-Friendly Option?

If the STL Beds Extra Heavy Duty Full-Queen Bed Frame Converter exceeds your needs or budget, consider our cost-effective CV1L Bed Frame Converter. It’s an efficient, affordable solution for upgrading from full to queen size, providing dependable quality without the extra cost.


Review our shipping and return policy before you buy it.

Made in America

Additional information

Weight 45 lbs
Dimensions 87 × 10 × 4 in
Your Bed Connection Type




Frame Height



Product Features


Key Features:


  • Triple Cross Support System: Includes three robust cross support bars, providing exceptional strength and stability across the entire length of the bed.
  • Superior Construction: Built with heavy-duty 2 claw hook-in or bolt-on head and footboard mounting plates, fastened to solid angle iron side rails. Ensures a secure and lasting connection to the head and footboard.
  • Made for Full-Size Bed Conversions: Designed to work with your existing hook-in or bolt-on, full-size headboard and footboard. It seamlessly integrates into your bedroom’s aesthetics.


Easy To Assemble:


  • Simple Setup: Requires only a screwdriver and pliers. Straightforward, easy-to-read instructions included.
  • Professional Support Available: Our experts are just a call away for any questions or assistance you might need during assembly.


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