--- product_id: 438905096 title: "Zinus 7 Inch King Metal Smart Box Spring with Quick Assembly, Mattress Foundation, Strong Metal Frame, Easy Assembly" brand: "zinus" price: "₱59972" currency: PHP in_stock: true reviews_count: 10 category: "Zinus" url: https://www.desertcart.ph/products/438905096-zinus-7-inch-king-metal-smart-box-spring-with-quick store_origin: PH region: Philippines --- # Compact, all-in-one packaging Supports up to 700 lbs Quick tool-free assembly Zinus 7 Inch King Metal Smart Box Spring with Quick Assembly, Mattress Foundation, Strong Metal Frame, Easy Assembly **Brand:** zinus **Price:** ₱59972 **Availability:** ✅ In Stock ## Summary > 🛏️ Build your dream bed foundation in minutes—strong, silent, and sleek. ## Quick Answers - **What is this?** Zinus 7 Inch King Metal Smart Box Spring with Quick Assembly, Mattress Foundation, Strong Metal Frame, Easy Assembly by zinus - **How much does it cost?** ₱59972 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.ph](https://www.desertcart.ph/products/438905096-zinus-7-inch-king-metal-smart-box-spring-with-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 - • **Space-Smart Packaging:** All parts and instructions arrive in one compact box, making delivery and setup a breeze—no extra trips or clutter. - • **Peace of Mind Warranty:** Backed by a 5-year limited warranty, this foundation is a long-term investment in your sleep quality and comfort. - • **Whisper-Quiet Stability:** Say goodbye to squeaks and creaks—enjoy a silent, sturdy foundation that keeps your sleep uninterrupted. - • **Effortless Setup in Minutes:** Tool-free locking brackets mean no fumbling with bolts—get your foundation ready faster than your morning coffee. - • **Rock-Solid Mattress Support:** Durable alloy steel frame engineered to hold up to 700 lbs, ensuring your mattress stays perfectly supported night after night. ## Overview The Zinus 7 Inch King Metal Smart Box Spring combines a durable alloy steel frame with innovative tool-free assembly for quick setup. Supporting up to 700 lbs, it offers silent, stable mattress support packed in a compact box with a 5-year limited warranty, making it the perfect foundation for a restful, hassle-free sleep experience. ## 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: Best Purchase Ever - 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. :) ## 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 | B09XM6BPL1 | | Assembly Instructions Description | 1. Unpack the box and lay out all parts. 2. Attach the tool-free locking brackets to the frame. 3. Connect the parts as per the step-by-step instructions. 4. Ensure all connections are secure. 5. Your box spring is now ready for use. | | Best Sellers Rank | #13,514 in Home & Kitchen ( See Top 100 in Home & Kitchen ) #11 in Box Springs | | Brand Name | Zinus | | Color | Grey | | Compatible With Mattress Size | King | | Customer Reviews | 4.0 4.0 out of 5 stars (1,476) | | Finish Types | Steel | | Form Factor | 7 inch box spring | | Furniture Finish | Alloy Steel | | Global Trade Identification Number | 00841550325362 | | Ground To Item Distance | 7 Inches | | Headboard Material | Fabric | | Included Components | Steel Frame, Cover | | Item Depth | 7 inches | | Item Dimensions | 78.7 x 75.5 x 7 inches | | Item Dimensions L x W x H | 78.7"L x 75.5"W x 7"H | | Item Type Name | Box Spring | | Item Weight | 44.09 Pounds | | Manufacturer | Zinus | | Manufacturer Part Number | ZU-ABS-7KS | | Manufacturer Warranty Description | Worry-free 5 year limited warranty included. | | Material Type | Alloy Steel, Fabric | | Maximum Weight Recommendation | 700 Pounds | | Model Number | ZU-ABS-7KS | | Other Special Features of the Product | Durable | | Product Care Instructions | Wipe with Dry Cloth | | Required Assembly | Yes | | Set Name | King 7 inch New Quick Assembly | | Shape | Rectangular | | Size | King | | Style Name | 7 inch | | UPC | 841550325362 | ## Product Details - **Material:** Alloy Steel, Fabric - **Product Dimensions:** 78.7"L x 75.5"W x 7"H - **Size:** King - **Special Feature:** Durable - **Style:** 7 inch ## Images ![Zinus 7 Inch 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) ## 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. ### ⭐⭐⭐⭐⭐ 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. :) ### ⭐ Don’t buy - too creaky *by L***N on March 20, 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? --- ## 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.ph/products/438905096-zinus-7-inch-king-metal-smart-box-spring-with-quick](https://www.desertcart.ph/products/438905096-zinus-7-inch-king-metal-smart-box-spring-with-quick) --- *Product available on Desertcart Philippines* *Store origin: PH* *Last updated: 2026-04-24*