1. Introduction
This manual provides comprehensive instructions for the assembly, usage, and maintenance of your ZINUS 9 Inch King Metal Smart Box Spring. Designed for durability and stability, this box spring serves as a robust foundation for your mattress. Its quick assembly design features fewer bolts and tool-free brackets, allowing for efficient setup.

Figure 1: ZINUS 9 Inch King Metal Smart Box Spring, Assembled and Frame
2. Product Features
- Durable Steel Construction: The internal framework is built with strong steel for long-lasting support.
- Quick Assembly: Features tool-free locking brackets and a push-pin system for fast and easy setup.
- Poly Jacquard Cover: Includes a versatile, removable poly jacquard cover for protection and aesthetics.
- Compact Packaging: Shipped in a compact box for convenient transport and maneuvering.
- Versatile Fit: Compatible with all Zinus mattresses and bed frames.

Figure 2: Durable Steel Frame Components
3. Assembly Instructions
Follow these steps for quick and easy assembly. No additional tools are required beyond what is provided.
3.1. Unpacking and Preparation
- Carefully open the shipping box and remove all components.
- Lay out all frame pieces and hardware on a clean, flat surface. Verify that all parts are present according to the included parts list.
3.2. Frame Assembly
- Connect the frame sections using the tool-free locking brackets. Ensure the push-pin system engages securely.
- Slide the corner attachment pieces into the frame corners until they click into place.
- Attach any central support pieces using the provided screws and the included ratchet tool. Ensure all connections are tight and secure.

Figure 3: Tool-Free Locking Brackets Diagram

Figure 4: Push-Pin System for Tool-Free Assembly
3.3. Cover Installation
- Once the metal frame is fully assembled, carefully place the poly jacquard cover over the frame.
- Zip the cover around the frame, ensuring a snug fit. The elastic band design allows for easy application.

Figure 5: Elastic Band Cover Installation
4. Usage Guidelines
After assembly, place your ZINUS Smart Box Spring onto a compatible bed frame. Then, position your mattress directly on top of the box spring. The box spring provides a stable and supportive base for your mattress, enhancing its longevity and comfort.

Figure 6: ZINUS Smart Box Spring on a Bed Frame (Mattress not included)

Figure 7: ZINUS Smart Box Spring with Mattress and Bedding
5. Care and Maintenance
- Cleaning the Frame: Wipe the metal frame with a damp cloth as needed.
- Cleaning the Cover: The poly jacquard cover is removable and can be washed according to its care label instructions.
- Regular Inspection: Periodically check all connections and bolts to ensure they remain tight. Tighten if necessary to prevent squeaking or instability.
6. Safety Information
- Weight Capacity: Twin/Twin XL sizes support a maximum weight capacity of 350 lbs. All other sizes, including King, can support up to 700 lbs. Do not exceed this weight limit.
- Locking Brackets: Exercise caution around locking brackets during assembly and disassembly to avoid injury.
- Bed Frame Requirement: A separate bed frame is required to support this foundation. This box spring is not designed to be used directly on the floor without a supporting bed frame.
7. Specifications
| Feature | Detail |
|---|---|
| Size | King |
| Color | Grey |
| Included Components | Steel Frame, Cover |
| Compatible With Mattress Size | King |
| Brand | Zinus |
| Product Care Instructions | Wipe with Damp Cloth |
| Assembly Required | Yes |
| Item Weight | 45.8 pounds |
| Product Dimensions | 78.7 x 75.5 x 9 inches |
| Item Model Number | ZU-ABS-9KS |
| UPC | 841550325423 |

Figure 8: Dimensions and Weight Capacity
8. Warranty Information
The ZINUS 9 Inch King Metal Smart Box Spring includes a 5-year limited warranty. This warranty covers manufacturing defects and ensures the product's quality under normal use. Please retain your proof of purchase for warranty claims.
9. Troubleshooting
9.1. Squeaking Noises
If your box spring develops squeaking noises, first ensure all bolts and connections are securely tightened. Over time, some connections may loosen slightly. Re-tightening them can often resolve the issue. Applying a small amount of lubricant (such as WD-40) to the connection points may also help.
10. Contact Support
For further assistance, parts replacement, or warranty claims, please visit the official Zinus website or contact their customer support. Refer to your product packaging for specific contact details.
Online Support: www.zinus.com







