---
product_id: 648832299
title: "Zinus 9 Inch WonderBox(TM) Smart Box Spring, Grey, Twin | Quick Assembly Mattress Foundation, Durable Metal Frame, Slip-On Cover"
brand: "zinus"
price: "€ 2233.14"
currency: EUR
in_stock: true
category: "Zinus"
url: https://www.desertcart.hr/products/648832299-zinus-9-inch-wonderbox-tm-smart-box-spring-grey-twin
store_origin: HR
region: Croatia
---

# Tool-free quick assembly 9-inch customizable height Durable steel frame support Zinus 9 Inch WonderBox(TM) Smart Box Spring, Grey, Twin | Quick Assembly Mattress Foundation, Durable Metal Frame, Slip-On Cover

**Brand:** zinus
**Price:** € 2233.14
**Availability:** ✅ In Stock

## Summary

> 🛏️ Elevate your sleep game with effortless style and rock-solid support!

## Quick Answers

- **What is this?** Zinus 9 Inch WonderBox(TM) Smart Box Spring, Grey, Twin | Quick Assembly Mattress Foundation, Durable Metal Frame, Slip-On Cover by zinus
- **How much does it cost?** € 2233.14 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/648832299-zinus-9-inch-wonderbox-tm-smart-box-spring-grey-twin)

## Best For

- zinus enthusiasts

## Why This Product

- Trusted zinus brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Eco-Smart Packaging:** Compact WonderBox delivery reduces waste and fits through any doorway effortlessly.
- • **Sleep with Confidence:** Backed by a 5-year warranty for peace of mind every night.
- • **Tailored Comfort Boost:** Choose between 5 or 9 inches to elevate your sleep sanctuary.
- • **Snap & Sleep in Minutes:** Tool-free design means zero frustration and instant setup.
- • **Built to Last, Built for You:** Heavy-duty steel frame supports up to 350 lbs with squeak-resistant stability.

## Overview

The Zinus 9 Inch Twin WonderBox Smart Box Spring offers a durable, tool-free assembly mattress foundation with a sturdy steel frame and customizable height options. Delivered in eco-friendly compact packaging, it supports up to 350 pounds and comes with a 5-year warranty, making it a reliable and stylish base for your twin mattress.

## Description

As the backbone for solid mattress support, a box spring that falls short can make or break your night’s sleep. We developed the Smart BoxSpring® with unbeatable durability and rock-solid stability to keep your mattress in shape for years to come. And our latest quick assembly version gives you total confidence when it comes to setup, requiring fewer bolts and ingeniously designed with easy to use, tool-free brackets. With our simple, step-by-step instructions on hand, you’ll have this foundation built and ready to use within minutes. Built with a strong and durable steel frame and a versatile poly jacquard cover that slips right on, the Smart BoxSpring® is the picture of dependability for any mattress. All packed in a compact shipping box with everything included, even our 5-year worry free warranty! Now that’s peace of mind you can sleep on.

## Features

- EASY DELIVERY & A CLEANER PLANET – Delivered in our earth-friendly WonderBox that is surprisingly small and easy to maneuver through doorways and tight corners.
- EFFORTLESS ASSEMBLY - Tool-free design snaps together in minutes for a frustration-free setup.
- CUSTOMIZABLE COMFORT - Choose from two heights to create your perfect sleep oasis – 5 inches for a lower profile, or 9 inches for an extra boost.
- DURABLE STEEL CONSTRUCTION - Provides long-lasting support for your mattress, maximizing comfort and lifespan.
- WORRY-FREE WARRANTY – Sleep soundly with an included 5-year warranty.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0D2VMS5TM |
| Assembly Instructions Description | Included |
| Best Sellers Rank | #53,054 in Home & Kitchen ( See Top 100 in Home & Kitchen ) #32 in Box Springs |
| Brand Name | Zinus |
| Color | Grey |
| Compatible With Mattress Size | Twin |
| Customer Reviews | 3.9 3.9 out of 5 stars (1,550) |
| Finish Types | Unfinished |
| Form Factor | Standard Box Spring |
| Furniture Finish | Gray |
| Global Trade Identification Number | 00841550372694 |
| Included Components | Box Spring, Installation Manual |
| Item Depth | 73.8 inches |
| Item Dimensions | 73.8 x 37.9 x 9 inches |
| Item Dimensions L x W x H | 73.8"L x 37.9"W x 9"H |
| Item Type Name | Quick Assembly Mattress Foundation, Durable Metal Frame |
| Item Weight | 9.22 Kilograms |
| Manufacturer | Zinus |
| Manufacturer Part Number | ZU-FBSSG1OC-09T |
| Material Type | Alloy Steel |
| Maximum Weight Recommendation | 350 Pounds |
| Model Number | ZU-FBSSG1OC-09T |
| Other Special Features of the Product | Easy assembly, Squeak Resistant |
| Required Assembly | Yes |
| Shape | Rectangular |
| Size | Twin |
| Style Name | 9 inch |
| UPC | 841550372694 |

## Product Details

- **Material:** Alloy Steel
- **Product Dimensions:** 73.8"L x 37.9"W x 9"H
- **Size:** Twin
- **Special Feature:** Easy assembly, Squeak Resistant
- **Style:** 9 inch

## Images

![Zinus 9 Inch WonderBox(TM) Smart Box Spring, Grey, Twin | Quick Assembly Mattress Foundation, Durable Metal Frame, Slip-On Cover - Image 1](https://m.media-amazon.com/images/I/61vyLl9KXCL.jpg)

## Available Options

This product comes in different **Pattern, Size, Style** options.

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**Shop now:** [https://www.desertcart.hr/products/648832299-zinus-9-inch-wonderbox-tm-smart-box-spring-grey-twin](https://www.desertcart.hr/products/648832299-zinus-9-inch-wonderbox-tm-smart-box-spring-grey-twin)

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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-07-25*