Introduction
The ZINUS 9 Inch Metal Smart Box Spring provides a sturdy and dependable steel structure designed to support your mattress and enhance your sleep experience. This manual provides detailed instructions for assembly, care, and troubleshooting to ensure optimal performance and longevity of your box spring.
Key Features:
- Durable steel construction for lasting strength.
- Compact packaging for easy transport and maneuverability.
- Easy assembly process with all necessary tools included.
- Included poly jacquard cover for a finished look.
- Supports various mattress types and bed frames.
Package Contents
Before beginning assembly, ensure all parts are present and accounted for. Refer to the diagram below for a visual representation of the components.

Image: All components of the ZINUS Smart Box Spring laid out on the floor, including various metal frame pieces, horizontal support bars, and the grey fabric cover, ready for assembly.
- Metal Frame Sections (various pieces for sides, head, foot, and middle support)
- Horizontal Support Slats
- Poly Jacquard Fabric Cover
- Hardware Kit (includes Allen key, wrench, and fasteners)
- Instruction Sheet
Setup and Assembly
The ZINUS Smart Box Spring is designed for easy and quick assembly. Follow these steps carefully to ensure proper setup.
Assembly Steps:
1. Unpack and Lay Out Components:
Carefully remove all components from the packaging. Lay out the metal frame sections, support slats, and fabric cover on a clean, flat surface, preferably carpeted to prevent scratches. Identify each part according to the instruction sheet.

Image: A diagram illustrating the five easy steps for setting up the Smart Box Spring, starting from unpacking the compact box to the final placement of the mattress.
2. Assemble the Outer Frame:
Connect the main outer frame pieces. Ensure that the U-shaped brackets on the frame sections are facing upwards, as these will hold the horizontal support slats. The quick assembly design allows for tool-free connection of many parts, often clicking into place.
3. Insert Horizontal Support Slats:
Once the outer frame is assembled, insert the horizontal support slats into the U-shaped brackets. These slats provide the primary support for your mattress. Ensure they are securely seated in their respective slots.

Image: A close-up view of the metal frame, highlighting the robust connections and the design that allows for easy insertion of the support slats.
4. Attach the Fabric Cover:
Drape the poly jacquard fabric cover over the assembled metal frame. The cover features elastic corners and a zipper closure to ensure a snug and secure fit, concealing the metal frame for a finished appearance.
5. Place Mattress:
Position the assembled box spring on your bed frame. Then, carefully place your mattress directly on top of the box spring. Ensure the mattress is centered and aligned for optimal support and comfort.

Image: The fully assembled ZINUS Smart Box Spring with a mattress on top, demonstrating the final product setup within a bedroom environment.
Operating Instructions
The ZINUS Smart Box Spring is designed to provide a stable and supportive foundation for your mattress. No specific "operation" is required beyond proper assembly and placement.
Usage Guidelines:
- Ensure the box spring is placed on a sturdy and level bed frame.
- Distribute weight evenly across the mattress to maintain the integrity of the box spring.
- Avoid jumping or placing excessive concentrated weight on the box spring to prevent damage.
Maintenance
Proper maintenance will help extend the lifespan of your ZINUS Smart Box Spring.
Care Instructions:
- Cleaning: Wipe the metal frame with a damp cloth as needed. The poly jacquard cover can be spot cleaned with a mild detergent and water. Allow to air dry completely.
- Inspection: Periodically check all connections and fasteners to ensure they remain tight. Re-tighten any loose screws using the provided Allen key.
- Ventilation: Ensure adequate air circulation around and under the box spring to prevent moisture buildup.
Troubleshooting
If you encounter any issues with your ZINUS Smart Box Spring, refer to the following common solutions:
Common Issues and Solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Squeaking noises | Loose connections or uneven placement. | Check all bolts and connections and tighten them securely. Ensure the box spring is level on the bed frame. |
| Mattress sliding | Uneven surface or lack of friction. | Ensure the box spring is level. The poly jacquard cover is designed to provide some friction, but a non-slip mat between the mattress and box spring can be used if needed. |
| Frame appears unstable | Incorrect assembly or missing support slats. | Review the assembly instructions to ensure all parts are correctly installed and tightened. Verify all horizontal support slats are in place. |
Specifications
- Size: Queen (79 x 59.5 x 9 inches)
- Material: Steel Interior Frame with Knitted Polyester Cover
- Color: Grey
- Item Weight: 40.7 Pounds
- Assembly Required: Yes (Quick Assembly)
- Maximum Weight Capacity: Up to 700 lbs (for Queen size)
- Manufacturer: Zinus - DROPSHIP
- Model Number: 139533P
- UPC: 841550068634

Image: Visual representation of the Queen size ZINUS Smart Box Spring with its dimensions (79" L x 59.5" W x 9" H) and weight capacity (700 lbs) clearly marked.
Warranty and Support
Your ZINUS 9 Inch Metal Smart Box Spring comes with a worry-free 5-year limited warranty. This warranty covers manufacturing defects and ensures peace of mind regarding the quality and durability of your product.
- Warranty Period: 5-year limited warranty (box spring only).
- Support: For detailed warranty information, claims, or additional support, please refer to the official ZINUS website or contact their customer service.
- User Guide: A comprehensive user guide is available in PDF format for download: Installation Manual (PDF) and Instructions for Use (IFU) (PDF).







