Zinus 5 Inch Metal Smart Box Spring, California King
ZINUS Smart Box Spring Instruction Manual
Model: 5 Inch Metal Smart Box Spring, California King
Brand: Zinus
1. Introduction
The ZINUS 5 Inch Metal Smart Box Spring is engineered to provide robust and stable support for your mattress. This foundation features a durable steel frame and a poly jacquard cover, designed for quick assembly and long-lasting performance. It serves as an essential component for proper mattress support, contributing to a comfortable and restorative sleep environment.

Figure 1.1: The ZINUS 5 Inch Metal Smart Box Spring, fully assembled.
2. Safety Information
Please read and understand all safety instructions before assembly and use. Failure to follow these guidelines may result in injury or damage to the product.
- Pinch Points: Be cautious of pinch points during assembly, especially when connecting metal frame components. Keep hands and fingers clear of moving parts.
- Weight Capacity: Do not exceed the maximum recommended load of 700 lbs (317.52 kg) for California King size. Exceeding this limit can compromise the structural integrity of the box spring.
- Proper Support: This box spring requires a compatible bed frame or platform bed for proper support. It is not designed for standalone use without an external frame. Ensure the bed frame is sturdy and level.
- Assembly: Assemble the unit on a soft, clean surface to prevent scratching. Ensure all connections are securely fastened before placing a mattress on the box spring.
- Children and Pets: Keep children and pets away from the assembly area to prevent accidents.
3. Components List
Before beginning assembly, verify that all components are present and undamaged. All parts are conveniently packed in one compact box.

Figure 3.1: Overview of all steel frame components and brackets.
- Steel Frame Sections (various lengths)
- Tool-Free Locking Brackets (x6)
- Poly Jacquard Cover
- Assembly Hardware (pre-installed push-pins)

Figure 3.2: Detail of the tool-free locking brackets for intuitive setup.

Figure 3.3: The push-pin system allows for tool-free connection of frame sections.
4. Setup and Assembly Instructions
The ZINUS Smart Box Spring is designed for quick and easy assembly, typically taking only minutes to complete with fewer bolts and tool-free locking brackets.
- Unpack Components: Carefully remove all parts from the packaging. Lay them out on a clean, soft surface to prevent scratches.
- Assemble Frame Sections: Connect the steel frame sections by aligning the pre-installed push-pins with the corresponding holes. Push the sections together until the pins click into place, securing the connection. Repeat for all frame sections to form the rectangular base.
- Attach Locking Brackets: Insert the tool-free locking brackets into the designated slots on the frame. These brackets provide additional stability and support. Ensure they are firmly seated.
- Install Poly Jacquard Cover: Once the metal frame is fully assembled and stable, carefully stretch the poly jacquard cover over the frame. The elastic band ensures a snug fit, making it easy to put on and take off.

Figure 4.1: Installing the elastic band poly jacquard cover over the assembled frame.
5. Operating and Usage
The ZINUS Smart Box Spring is designed to be placed directly onto a compatible bed frame or platform bed. It provides a flat, supportive surface for your mattress.
- Placement: Carefully lift the assembled box spring and place it onto your existing bed frame or platform bed. Ensure it is centered and sits securely within the frame.
- Mattress Placement: Gently place your mattress on top of the box spring. Ensure the mattress is evenly distributed across the surface of the box spring.
- Weight Distribution: For optimal longevity and support, distribute weight evenly across the mattress and box spring. Avoid concentrating heavy loads in small areas.

Figure 5.1: The ZINUS Smart Box Spring in use with a mattress on a bed frame.

Figure 5.2: Dimensions and maximum weight capacity of the box spring.
6. Maintenance
Regular maintenance helps ensure the longevity and performance of your ZINUS Smart Box Spring.
- Cleaning: Wipe the steel frame and poly jacquard cover with a dry cloth as needed to remove dust and debris. Avoid using harsh chemicals or abrasive cleaners.
- Check Connections: Periodically inspect all frame connections and locking brackets to ensure they remain secure. Tighten any loose connections if necessary, though the push-pin system is designed for lasting stability.
- Cover Care: The poly jacquard cover can be removed for cleaning if required. Follow care instructions on the cover's label, typically spot cleaning or gentle machine wash.
7. Troubleshooting
If you encounter any issues with your ZINUS Smart Box Spring, refer to the following common troubleshooting steps:
- Box Spring Does Not Fit Bed Frame:
- Verify the dimensions of your bed frame against the box spring specifications (2.11L x 1.82W x 0.13H Meters for California King).
- Ensure the bed frame is not warped or misaligned.
- Sagging or Uneven Support:
- Confirm that the total weight on the box spring (mattress + occupants) does not exceed the 700 lbs (317.52 kg) capacity.
- Check that all frame connections are fully engaged and secure.
- Ensure the underlying bed frame provides adequate and even support for the box spring.
- Noises (Squeaking/Creaking):
- Inspect all connections for tightness. While the push-pin system is tool-free, ensure each pin is fully seated.
- Verify that the box spring is sitting level and securely on your bed frame without any rocking.

Figure 7.1: Internal view of the durable steel structure providing mattress support.
8. Specifications
| Brand | Zinus |
| Model Name | 5 Inch Metal Smart Box Spring |
| Size | California King |
| Product Dimensions | 2.11L x 1.82W x 0.13H Meters |
| Item Weight | 42.11 Pounds |
| Material | Steel Fabric (Steel Interior Frame With Poly Jacquard Cover) |
| Colour | Grey |
| Maximum Recommended Load | 317.52 kg (700 lbs) |
| Assembly Required | Yes |
| Included Components | Slat, Steel Frame, Cover |
9. Warranty and Support
Your ZINUS 5 Inch Metal Smart Box Spring comes with a worry-free 5-year limited warranty.
For warranty claims, technical assistance, or any questions regarding your product, please contact Zinus customer support. Refer to the contact information provided with your purchase or visit the official Zinus website for the most up-to-date support details.
Please retain your proof of purchase for warranty validation.
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