---
product_id: 651790484
title: "Zinus 5 Inch Twin WonderBox(TM) Smart Box Spring, Quick Assembly Mattress Foundation, Durable Metal Frame, Grey"
brand: "zinus"
price: "S$220"
currency: SGD
in_stock: true
reviews_count: 8
url: https://www.desertcart.sg/products/651790484-zinus-5-inch-twin-wonderbox-tm-smart-box-spring-quick
store_origin: SG
region: Singapore
---

# Compact eco-friendly packaging Tool-free quick assembly Durable steel frame Zinus 5 Inch Twin WonderBox(TM) Smart Box Spring, Quick Assembly Mattress Foundation, Durable Metal Frame, Grey

**Brand:** zinus
**Price:** S$220
**Availability:** ✅ In Stock

## Summary

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

## Quick Answers

- **What is this?** Zinus 5 Inch Twin WonderBox(TM) Smart Box Spring, Quick Assembly Mattress Foundation, Durable Metal Frame, Grey by zinus
- **How much does it cost?** S$220 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/651790484-zinus-5-inch-twin-wonderbox-tm-smart-box-spring-quick)

## 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

- • **Built to Last:** Heavy-duty steel frame ensures long-term mattress support
- • **Eco-Smart Packaging:** Compact WonderBox reduces waste and fits through tight spaces
- • **Customizable Comfort:** Choose between 5 or 9-inch height for your ideal sleep profile
- • **Sleep with Confidence:** Backed by a 5-year warranty for peace of mind
- • **Snap Together in Minutes:** Effortless, tool-free setup saves time and frustration

## Overview

The Zinus 5 Inch Twin WonderBox Smart Box Spring offers a durable steel frame foundation with a sleek grey finish, designed for quick, tool-free assembly. Delivered in an eco-friendly compact box, it supports twin mattresses with customizable height options and includes a 5-year warranty, making it the smart choice for modern, hassle-free bedroom upgrades.

## 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. Box spring only, a bed frame or platform bed is required to support this foundation and is sold separately

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Size | Twin |
| Product Dimensions | 73.8"L x 37.9"W x 5"H |
| Special Feature | Easy assembly, Squeak Resistant |
| Color | Grey |
| Finish Type | Unfinished |
| Included Components | Box Spring, Instruction Sheet |
| Compatible With Mattress Size | Twin |
| Brand | Zinus |
| Furniture Finish | Gray |
| Assembly Required | Yes |
| Manufacturer | Zinus |
| UPC | 841550372656 |
| Form Factor | bed frame |
| Global Trade Identification Number | 00841550372656 |
| Assembly Instructions Description | Simple, step-by-step instructions for easy assembly, included in the product packaging. |
| Item Weight | 20.1 pounds |
| Item model number | ZU-FBSSG1OC-05T |

## Product Details

- **Size:** Twin
- **Material:** Alloy Steel
- **Product Dimensions:** 73.8"L x 37.9"W x 5"H
- **Style:** 5 inch
- **Special Feature:** Easy assembly, Squeak Resistant

## Images

![Zinus 5 Inch Twin WonderBox(TM) Smart Box Spring, Quick Assembly Mattress Foundation, Durable Metal Frame, Grey - Image 1](https://m.media-amazon.com/images/I/51eglYg7XsL.jpg)
![Zinus 5 Inch Twin WonderBox(TM) Smart Box Spring, Quick Assembly Mattress Foundation, Durable Metal Frame, Grey - Image 2](https://m.media-amazon.com/images/I/81kLlIFCQfL.jpg)
![Zinus 5 Inch Twin WonderBox(TM) Smart Box Spring, Quick Assembly Mattress Foundation, Durable Metal Frame, Grey - Image 3](https://m.media-amazon.com/images/I/4142MaisUTL.jpg)
![Zinus 5 Inch Twin WonderBox(TM) Smart Box Spring, Quick Assembly Mattress Foundation, Durable Metal Frame, Grey - Image 4](https://m.media-amazon.com/images/I/81KDSBqFGtL.jpg)
![Zinus 5 Inch Twin WonderBox(TM) Smart Box Spring, Quick Assembly Mattress Foundation, Durable Metal Frame, Grey - Image 5](https://m.media-amazon.com/images/I/91+kvxzEjvL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ close to perfect
*by A***R on April 18, 2025*

I spent a ridiculous amount of time comparing prices and features before ending up with this purchase and I am so glad I did! Everything is perfect, all the parts, the fit, the engineering, even the finished look. Easy to put together with snap lock connectors. I have a relatively thin mattress and still can't feel the crossbars through it. This is day one. All the negative comments about bed foundations from other sellers don't seem to apply here. As for durability, my expectations are high but we'll have to wait and see.

### ⭐⭐⭐⭐⭐ Best Purchase Ever
*by C***2 on February 11, 2025*

I never write product reviews, but this was such an awesome purchase. This is the BEST box spring I have ever owned. If you’re on the fence about buying this product, or you’re trying to decide between options, here’s a number of reasons to go with this one.1. Noise Level: NONE. Completely silent. This was my #1 reason for wanting a new box spring in the first place, and it does not disappoint. Our previous box spring (the traditional wood/spring kind) had become squeaky over the years, and kept waking up our 5 month old baby. This new box spring hasn’t made one tiny noise since day one - our baby has been sleeping through the night. Relief is an understatement.2. Sturdiness: I have never felt so supported by my bed. It feels even better than when our previous box spring was brand new, so I know it’s not just because it’s new. I have chronic shoulder pain, and while a new box spring obviously isn’t a cure, I have been waking up significantly less sore for the first time in years. My husband doesn’t have the same pain issues, but he agrees that our bed feels much more sturdy and comfortable, because our bodies are better supported.3. Assembly: So easy. I am not in my greatest shape (I did just have a baby), but I was able to put it together without my husband’s help. The box comes with some screws and an Alan key, and that’s honestly all that’s needed. The directions are pretty easy to follow. I will say that the “Up” stickers were placed on the parts in a way that was a little confusing at times, but if you pay close attention to the pictures in the instructions, you’ll be fine. It took me less than an hour.I cannot recommend this box spring enough. Do yourselves a favor and purchase this. You can thank me later. :)

### ⭐⭐⭐⭐⭐ Light and Easy to Assemble 9” Box Spring
*by M***N on March 7, 2025*

The product was packaged well and all pieces/hardware were present. Items were clearly labeled with “UP” stickers to minimize confusion but could benefit from identification stickers (A, B, C, etc) to make it fool proof.The instruction illustrations were clear, making part identification simple (again, letter identification stickers would take it over the top) and were easy to follow.Assembly from start to finish took 22 minutes. It’s a simple unfold and snap in assembly with 6 bolts bringing it all together in the middle, 2 plastic caps to cover the tops of the outside center joints, and the fabric covering once it’s put together.Frame seemed pretty solid once assembled and is extremely light - purchased Full size 9” box spring. Will update if anything changes but overall, I am satisfied with the product.

## Frequently Bought Together

- ZINUS 5 Inch WonderBox(TM) Smart Box Spring, Quick Assembly Mattress Foundation, Durable Metal Frame, Twin, Grey
- Utopia Bedding Waterproof Mattress Protector Twin Size, Premium Terry Mattress Cover 200 GSM, Breathable, Fitted Style with Stretchable Pockets (White)
- ZINUS 6 Inch Green Tea Memory Foam Mattress [New Version], Twin, Fiberglass free, Medium Firm Feel, Zoned Pressure Relief, Certified Safe Foams & Fabric, Mattress in A Box

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.sg/products/651790484-zinus-5-inch-twin-wonderbox-tm-smart-box-spring-quick](https://www.desertcart.sg/products/651790484-zinus-5-inch-twin-wonderbox-tm-smart-box-spring-quick)

---

*Product available on Desertcart Singapore*
*Store origin: SG*
*Last updated: 2026-01-23*