--- product_id: 440837498 title: "ZINUS 9 Inch Metal Smart Box Spring with Quick Assembly, Mattress Foundation, Strong Metal Frame, Easy Assembly, Twin" brand: "zinus" price: "€ 248.62" currency: EUR in_stock: true reviews_count: 4 url: https://www.desertcart.pt/products/440837498-zinus-9-inch-metal-smart-box-spring-with-quick-assembly store_origin: PT region: Portugal --- # Standard Twin size 73.8x38x9 in Tool-free quick assembly Supports up to 350 lbs ZINUS 9 Inch Metal Smart Box Spring with Quick Assembly, Mattress Foundation, Strong Metal Frame, Easy Assembly, Twin **Brand:** zinus **Price:** € 248.62 **Availability:** ✅ In Stock ## Summary > 🛏️ Build your dream sleep setup in minutes—sturdy, smart, and stress-free! ## Quick Answers - **What is this?** ZINUS 9 Inch Metal Smart Box Spring with Quick Assembly, Mattress Foundation, Strong Metal Frame, Easy Assembly, Twin by zinus - **How much does it cost?** € 248.62 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/440837498-zinus-9-inch-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 - • **Perfect Twin Fit:** Precisely sized at 73.8 x 38 x 9 inches to complement your twin mattress flawlessly. - • **Sleep with Confidence:** Backed by a 5-year limited warranty for peace of mind and lasting reliability. - • **Versatile Compatibility:** Seamlessly pairs with all Zinus mattresses and bed frames for a cohesive sleep system. - • **Engineered for Endurance:** Durable steel frame supports up to 350 lbs, ensuring long-lasting mattress stability. - • **Effortless Setup in Minutes:** Tool-free locking brackets make assembly a breeze—no extra tools needed. ## Overview The ZINUS 9 Inch Metal Smart Box Spring offers a robust steel frame foundation designed for twin mattresses, measuring 73.8 x 38 x 9 inches. Featuring tool-free locking brackets, it enables quick and easy assembly without tools. Engineered to support up to 350 lbs, it ensures durable mattress support and comes with a 5-year limited warranty, making it a reliable choice for millennial professionals seeking hassle-free, long-lasting sleep solutions. ## 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 - Steel Interior Frame With Poly Jacquard - 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 bed frame to ensure compatibility - EASIER THAN EVER ASSEMBLY - As if its ultra-durable steel structure and convenient packaging weren’t impressive enough, this 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 - VERSATILE FIT - Compatible with all Zinus mattresses and bed frames; please confirm dimensions before using with non-Zinus products - WARRANTY INCLUDED - Included a 5-year limited warranty for the box spring only; a bed frame is required to support this foundation and is sold separately ## Technical Specifications | Specification | Value | |---------------|-------| | Item Weight | 26.7 pounds | | Product Dimensions | 73.8 x 38 x 9 inches | | Country of Origin | China | | Item model number | ZU-ABS-9TS | ## Product Details - **Size:** Twin - **Color:** Grey - **Included Components:** Steel Frame, Cover - **Brand:** ZINUS - **Product Care Instructions:** Wipe with Damp Cloth ## Images ![ZINUS 9 Inch Metal Smart Box Spring with Quick Assembly, Mattress Foundation, Strong Metal Frame, Easy Assembly, Twin - Image 1](https://m.media-amazon.com/images/I/71XviA8ic-L.jpg) ![ZINUS 9 Inch Metal Smart Box Spring with Quick Assembly, Mattress Foundation, Strong Metal Frame, Easy Assembly, Twin - Image 2](https://m.media-amazon.com/images/I/81lmnXX6ZNL.jpg) ![ZINUS 9 Inch Metal Smart Box Spring with Quick Assembly, Mattress Foundation, Strong Metal Frame, Easy Assembly, Twin - Image 3](https://m.media-amazon.com/images/I/61mmmqjYYbL.jpg) ![ZINUS 9 Inch Metal Smart Box Spring with Quick Assembly, Mattress Foundation, Strong Metal Frame, Easy Assembly, Twin - Image 4](https://m.media-amazon.com/images/I/71jRZD5+zgL.jpg) ![ZINUS 9 Inch Metal Smart Box Spring with Quick Assembly, Mattress Foundation, Strong Metal Frame, Easy Assembly, Twin - Image 5](https://m.media-amazon.com/images/I/81qdHB++O-L.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 ### ⭐⭐⭐⭐⭐ Great price and sturdy *by D***I on June 15, 2025* We checked out some box springs to replace our busted wooden ones. The price has definitely gone up substantially on them. We decided to try out the metal box springs hoping for longer lasting and more sturdiness. The product says is can hold up to 750 pounds.My husband and teen son assembled the boxspring together. It came with all the necessary tools. Would say the only thing we really had a problem with is that the middle shafts are hollow and we had some bugs in ours so we beat them down into the bathtub and made sure that they weren’t in any more of the metal. I can’t really see how a warehouse could have this 100% under control to not have this happen so we do not blame the company for anything. Just FYI for you to check before you assemble it. My husband and son were having a bit of trouble getting the cover on until I came up and helped them out. Luckily there’s a little flap that says top so you know exactly which way to put it on. It was easy putting it on after that. We’ve had it for about two months now and it works great. Great product for the price in a time of outrageous bedding prices. ### ⭐⭐⭐⭐⭐ Sturdy, Easy to Assemble, and No Noise! *by E***. on August 5, 2025* I’m really impressed with this metal box spring. It was super easy to assemble — took me less than 30 minutes on my own. It feels very sturdy and supports my mattress perfectly without any squeaking or movement. The height is just right and it fits perfectly in my bed frame. Highly recommend if you’re looking for something durable and affordable! ### ⭐⭐⭐⭐⭐ Great quality, packaging and everything included for assembly *by D***. on June 8, 2025* Loved the fact that it arrived in a compact box making it very manageable to carry through the house and into the bedroom as I have a very small and constricted floor plan.Upon opening the box it seemed a bit overwhelming but once I looked at the instructions and the diagram of the labeling of the pieces I was very impressed with how easy it was to lay out and put together.All the hardware fit smoothly and was easy to put together using only the tools that were supplied. That in itself was a touch of class, to be provided those items and not have to find and size up my own tools.The quality of the hardware as well as the packaging was well thought out and I appreciated the extra nuts and bolts. I actually used the extra nuts to double nut the two long bolts that secured the middle cross members together in the center of the box to ensure they don't work their way loose over time.The nuts and bolts looked to be well made and the shouldered and serated locking surfaces of the nuts weren't lost on me. That was a great selection of fasteners. The bolts were made very well and the heads did not ring out or become deformed from being tightened and kept their integrity and shape so as to be removed for disassembley in the future if needed.All the frame work pieces had a very nice finish to them appearing to be powder coated. The final addition of the frame cover was an added item that enhanced the overall quality and appearance of the total package once it was fully assembled.Total assembly time was no more than an hour by myself and being put together on and inside an existing raised oak bedframe with large headboards and side rails.Very pleased with this excellent product and would most definitely buy again and recommend to others looking for a similar item to fit their needs and lifestyle. --- ## 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.pt/products/440837498-zinus-9-inch-metal-smart-box-spring-with-quick-assembly](https://www.desertcart.pt/products/440837498-zinus-9-inch-metal-smart-box-spring-with-quick-assembly) --- *Product available on Desertcart Portugal* *Store origin: PT* *Last updated: 2026-04-22*