--- product_id: 691511584 title: "Zinus 7 Inch California King Metal Smart Box Spring with Quick Assembly, Mattress Foundation, Strong Metal Frame, Easy Assembly" brand: "zinus" price: "18318.51 DT" currency: TND in_stock: true reviews_count: 5 category: "Zinus" url: https://www.desertcart.tn/products/691511584-zinus-7-inch-california-king-metal-smart-box-spring-quick store_origin: TN region: Tunisia --- # Compact, all-in-one packaging for easy delivery Supports up to 700 lbs mattress weight Quick tool-free assembly in minutes Zinus 7 Inch California King Metal Smart Box Spring with Quick Assembly, Mattress Foundation, Strong Metal Frame, Easy Assembly **Brand:** zinus **Price:** 18318.51 DT **Availability:** ✅ In Stock ## Summary > 🛏️ Sleep smarter, not harder — the foundation your mattress deserves. ## Quick Answers - **What is this?** Zinus 7 Inch California King Metal Smart Box Spring with Quick Assembly, Mattress Foundation, Strong Metal Frame, Easy Assembly by zinus - **How much does it cost?** 18318.51 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/691511584-zinus-7-inch-california-king-metal-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:** 5-year limited warranty ensures your foundation stays strong night after night. - • **Effortless Setup:** Tool-free locking brackets mean no sweat, no tools, just snap and rest. - • **Rock-Solid Support:** Durable steel frame engineered to hold up to 700 lbs, keeping your mattress perfectly stable. - • **Sleek & Minimalist:** Modern grey steel finish complements any bedroom aesthetic with understated style. - • **Space-Smart Shipping:** Ships in a compact box that fits your lifestyle — easy to move, easy to store. ## Overview The Zinus 7 Inch California King Metal Smart Box Spring combines ultra-durable steel construction with a quick, tool-free assembly design. Supporting up to 700 lbs, it offers rock-solid mattress stability while arriving in a compact, easy-to-handle package. Backed by a 5-year limited warranty, this sleek grey foundation is the perfect blend of strength, convenience, and modern style for the discerning sleeper. ## 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: Easy to assemble but it is so creaky! I tried tightening it every time it would creak again but the logistics behind that are just a pain in the butt. Investing in the foundation from the place I purchased my mattress instead. My friend recommended this to me and she has no issues with noise so maybe I got a defect? Review: Whoever made this is a genius. We both drive small cars and box springs were SO expensive before even finding a way to get it home. This showed up in a nice little box, it was easy to assemble and our king size mattress is sitting comfortably! Plus, for the future it will be super easy to move. Freaking love this thing and will never buy a wooden box spring again ## Features - STRONG, DEPENDABLE, AND READY IN NO TIME - As if its ultra-durable steel structure and convenient packaging weren’t impressive enough, our original Smart BoxSpring has been given a quick-assembly upgrade - 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 all other sizes can support up to 700 lbs - EASIER THAN EVER ASSEMBLY - With fewer bolts and tool-free locking brackets for intuitive setup, assembly takes only minutes to complete - 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 | B09XM7R263 | | Assembly Instructions Description | Included | | Brand Name | Zinus | | Color | Grey | | Compatible With Mattress Size | California King | | Customer Reviews | 4.1 4.1 out of 5 stars (609) | | Finish Types | Steel | | Form Factor | Box Spring | | Furniture Finish | Grey | | Global Trade Identification Number | 00841550325379 | | Included Components | Steel Frame, Cover | | Item Depth | 7 inches | | Item Dimensions | 2.11 x 1.82 x 0.18 Meters | | Item Dimensions L x W x H | 181.6L x 211W x 22.9H centimeters | | Item Type Name | Box Spring | | Item Weight | 43.76 Pounds | | Manufacturer | Zinus | | Manufacturer Part Number | ZU-ABS-7CS | | Material Type | Alloy Steel Fabric | | Maximum Weight Recommendation | 700 Pounds | | Model Number | ZU-ABS-7CS | | Other Special Features of the Product | Durable | | Required Assembly | Yes | | Set Name | Size and Style Set | | Shape | Rectangular | | Size | California King | | Style Name | New/upgraded with quick assembly | | UPC | 841550325379 | | Unit Count | 1.0 Count | ## Product Details - **Material:** Alloy Steel Fabric - **Product dimensions:** 181.6L x 211W x 22.9H centimeters - **Size:** California King - **Special features:** Durable - **Style:** New/upgraded with quick assembly ## Images ![Zinus 7 Inch California King Metal Smart Box Spring with Quick Assembly, Mattress Foundation, Strong Metal Frame, Easy Assembly - Image 1](https://m.media-amazon.com/images/I/61e4dd+fl8L.jpg) ![Zinus 7 Inch California King Metal Smart Box Spring with Quick Assembly, Mattress Foundation, Strong Metal Frame, Easy Assembly - Image 2](https://m.media-amazon.com/images/I/81BbnifKE+L.jpg) ![Zinus 7 Inch California King Metal Smart Box Spring with Quick Assembly, Mattress Foundation, Strong Metal Frame, Easy Assembly - Image 3](https://m.media-amazon.com/images/I/61rgA7n5Z-L.jpg) ![Zinus 7 Inch California King Metal Smart Box Spring with Quick Assembly, Mattress Foundation, Strong Metal Frame, Easy Assembly - Image 4](https://m.media-amazon.com/images/I/817Eo9cK32L.jpg) ![Zinus 7 Inch California King Metal Smart Box Spring with Quick Assembly, Mattress Foundation, Strong Metal Frame, Easy Assembly - Image 5](https://m.media-amazon.com/images/I/71LXSplDg1L.jpg) ## Available Options This product comes in different **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 ### ⭐ Review *by L***N on 20 March 2026* Easy to assemble but it is so creaky! I tried tightening it every time it would creak again but the logistics behind that are just a pain in the butt. Investing in the foundation from the place I purchased my mattress instead. My friend recommended this to me and she has no issues with noise so maybe I got a defect? ### ⭐⭐⭐⭐⭐ Review *by H***C on 22 December 2025* Whoever made this is a genius. We both drive small cars and box springs were SO expensive before even finding a way to get it home. This showed up in a nice little box, it was easy to assemble and our king size mattress is sitting comfortably! Plus, for the future it will be super easy to move. Freaking love this thing and will never buy a wooden box spring again ### ⭐⭐⭐⭐ Review *by A***R on 30 December 2025* Product wasn't bad. Missing some end caps which helps with stability/durability. There was no customer service number to contact them for possible replace parts. --- ## 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.tn/products/691511584-zinus-7-inch-california-king-metal-smart-box-spring-quick](https://www.desertcart.tn/products/691511584-zinus-7-inch-california-king-metal-smart-box-spring-quick) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-08-05*