---
product_id: 440131647
title: "7 Inch Twin Metal Smart Box Spring with Quick Assembly, Mattress Foundation, Strong Metal Frame, Easy Assembly"
brand: "zinus"
price: "€ 2150.83"
currency: EUR
in_stock: true
reviews_count: 10
category: "Zinus"
url: https://www.desertcart.hr/products/440131647-7-inch-twin-metal-smart-box-spring-with-quick-assembly
store_origin: HR
region: Croatia
---

# 73.8 x 38 x 9 in Twin size Tool-free quick assembly Supports up to 350 lbs 7 Inch Twin Metal Smart Box Spring with Quick Assembly, Mattress Foundation, Strong Metal Frame, Easy Assembly

**Brand:** zinus
**Price:** € 2150.83
**Availability:** ✅ In Stock

## Summary

> 🛏️ Sleep Smart, Assemble Smarter: The Foundation Your Mattress Deserves

## Quick Answers

- **What is this?** 7 Inch Twin Metal Smart Box Spring with Quick Assembly, Mattress Foundation, Strong Metal Frame, Easy Assembly by zinus
- **How much does it cost?** € 2150.83 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/440131647-7-inch-twin-metal-smart-box-spring-with-quick-assembly)

## 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

- • **Rock-Solid Steel Frame:** Durable alloy steel construction ensures long-lasting mattress support and stability.
- • **Perfect Twin Dimensions:** Precisely sized at 73.8 x 38 x 9 inches to fit standard twin mattresses flawlessly.
- • **Whisper-Quiet Foundation:** Engineered to eliminate squeaks and shifts, so your sleep stays uninterrupted.
- • **Effortless Setup in Minutes:** Tool-free locking brackets make assembly a breeze—no tools, no hassle, just snap and go.
- • **Compact & Convenient Packaging:** Ships in one box with all parts included—ready to build right out of the package.

## Overview

The Zinus 7 Inch Twin Metal Smart Box Spring combines a sturdy steel frame with innovative tool-free locking brackets for ultra-fast assembly. Designed to support up to 350 lbs, it offers a quiet, stable foundation perfectly sized for twin mattresses. Compactly packaged with a 5-year warranty, it’s the smart choice for millennials seeking durable, hassle-free mattress support that fits their fast-paced lifestyle.

## 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.

Review: Very sturdy and surprisingly quiet - I’m honestly impressed with this foundation. I bought the king size and was expecting it to be heavy and complicated, but it was actually very easy to put together. The frame feels solid once it’s assembled, and it doesn’t wobble or shift when you get in and out of bed. What I like the most is that it makes absolutely no noise. No squeaks, no movement sounds at all. The support is firm in a good way, and the surface feels steady under the mattress. It also doesn’t weigh as much as I expected, so moving it around wasn’t a problem. Overall, it looks clean, feels durable, and holds the mattress perfectly without sliding. The height is perfect to match the regular bed headboard. (4 " works )Great buy.
Review: Perfect for my needs. - The perfect height for what I needed, very easy to assemble, lightweight and compact if ever you need to move it. The only issue I experienced is the tendency for your mattress to slide around a bit due to the cover. Not a big deal, and you can place a blanket in between to mitigate that.

## Features

- TWIN DIMENSIONS - The dimensions of this standard twin size box spring are 73.8 x 38 x 9 inches. The length is 5 inches shorter than our Twin XL size. Please measure your bedframe to ensure compatibility.
- EASIER THAN EVER ASSEMBLY - As if its ultra-durable steel structure and convenient packaging weren’t impressive enough, this new box spring features tool-free locking brackets for intuitive setup, assembly takes only minutes to complete
- DURABLY ENGINEERED - Durable steel is used to construct the inside framework of this foundation; twin/twin xl sizes support a maximum weight capacity of 350 lbs, while Full, Queen & King sizes can support up to 700 lbs
- THOUGHTFULLY PACKAGED - All parts and instructions are packed into one compact box that ships straight to your door
- Worry-free 5 year limited warranty included; box spring only, a bed frame or platform bed is required to support this foundation and is sold separately

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09XM77845 |
| Assembly Instructions Description | 1. Unpack the box and lay out all parts. 2. Attach the tool-free locking brackets to the sides of the box spring. 3. Secure the brackets by aligning and locking them together. 4. Ensure all parts are tightly connected and stable. 5. Your box spring is now ready for use. |
| Assembly Required | Yes |
| Best Sellers Rank | #28,992 in Home & Kitchen ( See Top 100 in Home & Kitchen ) #26 in Box Springs |
| Brand | Zinus |
| Color | Grey |
| Compatible With Mattress Size | twin |
| Customer Reviews | 4.0 4.0 out of 5 stars (1,449) |
| Date First Available | April 11, 2022 |
| Finish Type | Steel |
| Form Factor | box-shaped |
| Furniture Finish | Alloy Steel |
| Global Trade Identification Number | 00841550325324 |
| Ground To Item Distance | 9 Inches |
| Headboard Material | Fabric |
| Included Components | Steel Frame, Cover |
| Item Weight | 25.3 pounds |
| Item model number | ZU-ABS-7TS |
| Manufacturer | Zinus |
| Product Care Instructions | Wipe with Dry Cloth |
| Product Dimensions | 37.9"L x 73.8"W x 9"H |
| Size | Twin |
| Special Feature | Durable |
| UPC | 841550325324 |

## Product Details

- **Material:** Alloy Steel, Fabric
- **Product Dimensions:** 37.9"L x 73.8"W x 9"H
- **Size:** Twin
- **Special Feature:** Durable
- **Style:** 7 inch

## Images

![7 Inch Twin Metal Smart Box Spring with Quick Assembly, Mattress Foundation, Strong Metal Frame, Easy Assembly - Image 1](https://m.media-amazon.com/images/I/71tapI76cwL.jpg)

## Available Options

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

## Questions & Answers

**Q: Are any tools required to assemble my box spring?**
A: Yes, just a few! But this box spring is shipped with everything you need to assemble it - all parts, tools and instructions can be found efficiently packed in the shipping box.

**Q: Does this box spring require a bed frame?**
A: A basic metal bed frame or platform bed (sold separately) is required to support this box spring. Add your mattress, and you’ve got the dynamic trio for rock solid support.

**Q: What kind of mattress can this box spring support?**
A: Our box springs are designed to do it all. Rest your memory foam, latex or spring mattress on top for smooth snoozing.

**Q: What is the distance between slats?**
A: For Twin and Full sizes, spacing is 6.3 inches. For Twin XL, Queen and King sizes, spacing is 6.7 inches. For California King size, spacing is 7.2 inches.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Very sturdy and surprisingly quiet
*by A***3 on November 19, 2025*

I’m honestly impressed with this foundation. I bought the king size and was expecting it to be heavy and complicated, but it was actually very easy to put together. The frame feels solid once it’s assembled, and it doesn’t wobble or shift when you get in and out of bed. What I like the most is that it makes absolutely no noise. No squeaks, no movement sounds at all. The support is firm in a good way, and the surface feels steady under the mattress. It also doesn’t weigh as much as I expected, so moving it around wasn’t a problem. Overall, it looks clean, feels durable, and holds the mattress perfectly without sliding. The height is perfect to match the regular bed headboard. (4 " works )Great buy.

### ⭐⭐⭐⭐⭐ Perfect for my needs.
*by J***D on February 19, 2026*

The perfect height for what I needed, very easy to assemble, lightweight and compact if ever you need to move it. The only issue I experienced is the tendency for your mattress to slide around a bit due to the cover. Not a big deal, and you can place a blanket in between to mitigate that.

### ⭐ Dangerous - Does not work
*by J***T on February 6, 2026*

At first it seemed like a good foundation. Assembly was easy enough. Unfortunately assembly was too easy. The cross slats kept popping out of the plastic holders, causing the mattress to collapse into the frame. This was especially problematic at the top end. The product is completely useless and should be avoided.

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**Shop now:** [https://www.desertcart.hr/products/440131647-7-inch-twin-metal-smart-box-spring-with-quick-assembly](https://www.desertcart.hr/products/440131647-7-inch-twin-metal-smart-box-spring-with-quick-assembly)

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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-03-09*