Product Overview
The Signature Design by Ashley Better than a Boxspring RTA Foundation is an all-in-one metal support system designed to replace a traditional bed frame and box spring. It provides sturdy support for your mattress and offers significant under-bed storage space.

Image: The Signature Design by Ashley Better than a Boxspring RTA Foundation, a metal mattress riser designed for sturdy support and under-bed storage.
Key Features:
- Integrated Support System: Replaces both a bed frame and box spring, providing a single, robust foundation for your mattress.
- Durable Construction: Features an all-metal frame for enhanced stability and longevity.
- Ample Under-Bed Storage: Designed with a tall clearance to maximize space for storage bins and boxes beneath the bed.
- Headboard Compatibility: Includes brackets for easy attachment to a headboard (headboard not included).
- Tool-Free Assembly: Engineered for quick and straightforward setup without the need for additional tools.
Safety Information
Important Safety Instructions:
- Always follow the assembly instructions precisely to ensure the stability and safety of the foundation.
- Do not exceed the maximum recommended weight capacity of 250 pounds. Overloading can compromise the structural integrity and lead to injury.
- Ensure all connections are securely fastened before placing a mattress on the foundation.
- Keep small parts away from children during assembly to prevent choking hazards.
Setup and Assembly
This mattress riser is designed for quick and easy assembly without the need for tools. Please follow these steps carefully.
Before You Begin:
- Unpack all components and verify that all parts are present according to the packing list.
- Clear an adequate space for assembly.
- It is recommended to have two people for assembly.
Assembly Steps:
- Carefully unfold the main frame sections. Ensure the legs are fully extended and locked into place.
- Connect the two main frame sections using the integrated locking mechanisms. Listen for a click to confirm secure connection.
- Attach the headboard brackets to the designated points on the frame, if desired. These typically slide into slots and are secured with hand-tightened knobs or levers.
- Once fully assembled, gently lift and position the foundation in your desired location.
- Place your mattress directly onto the assembled foundation. No box spring is required.

Image: The fully assembled metal mattress foundation, ready for a mattress.
Operating Instructions
The Signature Design by Ashley RTA Foundation is designed for straightforward use as a mattress support system.
Daily Use:
- Ensure the mattress is centered on the foundation to distribute weight evenly.
- Utilize the generous under-bed clearance for storage of items in bins or containers.

Image: The mattress foundation with a mattress placed on top, demonstrating its primary function.
Maintenance and Care
Proper care will ensure the longevity and continued performance of your mattress foundation.
- Cleaning: Wipe down the metal frame with a damp cloth and mild detergent as needed. Avoid abrasive cleaners.
- Inspection: Periodically check all connections and fasteners to ensure they remain tight. Re-tighten if necessary.
- Weight Distribution: Avoid concentrating heavy loads on small areas of the foundation. Distribute weight evenly.
- Relocation: If moving the foundation, lift it rather than dragging it to prevent damage to the frame or flooring.
Troubleshooting
If you encounter any issues with your mattress foundation, refer to the following common solutions:
Problem | Possible Cause | Solution |
---|---|---|
Foundation feels unstable or wobbly. | Loose connections or improper assembly. | Review assembly instructions and ensure all locking mechanisms are fully engaged and secure. Check all leg connections. |
Squeaking noises. | Friction between metal parts or mattress. | Ensure all connections are tight. If squeaking persists, a thin piece of felt or fabric can be placed between contact points of the mattress and frame. |
Difficulty attaching headboard. | Incorrect bracket orientation or incompatible headboard. | Verify the headboard brackets are oriented correctly. Ensure your headboard's mounting points align with the foundation's brackets. |
Specifications
Model Number: | M91X22 |
Brand: | Signature Design by Ashley |
Size: | Full |
Product Dimensions: | 74"L x 38"W x 14"H |
Color: | Grey |
Finish Type: | Painted |
Included Components: | Full Foundation (with headboard brackets) |
Assembly Required: | Yes (Tool-free) |
Item Weight: | 35.3 pounds |
Maximum Weight Capacity: | 250 pounds |

Image: Diagram showing the dimensions of the mattress foundation: 74 inches long, 38 inches wide, and 14 inches high.
Warranty and Support
For specific warranty information regarding your Signature Design by Ashley product, please refer to the documentation included with your purchase or visit the official Signature Design by Ashley website.
For customer support, assembly assistance, or to report missing/damaged parts, please contact Signature Design by Ashley customer service. Contact details can typically be found on the manufacturer's website or on the product packaging.
Additional resources: