4 Inch King Size Box Spring

We are a proud manufacturer of the finest quality box Springs, with the highest standards in durability, quality, comfort, & beauty. All of our products are made in the USA to ensure that you get only the best! This item is part of our Hollywood collection, it has the following features: this box spring is uniquely designed to give you the kind of undisturbed sleep nature intended. Wood foundation, Continental box meets federal standards 1632 and 1633 fire code.

These fit perfectly! We just needed a little extra support and our bed raised because it was too low. We purchased the 8 inch box springs. They came in two separate boxes and we’re fully put together. We simply had to place them on our bed and put the mattress back on top. Love these.. Connie. Mc Bain, MI. Thu Oct 15 2026

This box spring offers a reliable foundation for your mattress. It's crafted with a metal frame that provides a supportive base for a variety of mattress types. Beneath its fabric cover lies a reinforced steel framework that resists sagging and wear, helping to extend the life of your mattress over the long haul. The neutral, minimalist silhouette blends effortlessly with any bedding style, while the low-profile build fits neatly inside most standard bed frames—evenly distributing weight across the base and reducing motion transfer for more undisturbed rest. Designed to fit within most standard bed frames, it helps elevate your sleep surface while maintaining a low profile. The interior construction is built to support weight evenly.

I wanted just to raise the mattress hight. These were perfect. The included cover was perfect. Very sturdy metal. Takes a little time to put together, but all in all, was great.. Linda. Modesto, CA. Sun Jun 28 2026

This 4-inch low-profile box spring is meticulously crafted to offer exceptional support for any mattress. Comes with a high-quality cloth cover for easy washing. Constructed from durable metal with a classic steel box spring design. Warm reminder：The product only includes the base box spring and does not include the bottom of the bed frame and there are no legs.

Bought for son’s room. Nice and comfortable.. Anonymous. Sun Oct 25 2026

Are you troubled by mattress sagging affecting your sleep? Are you bothered by a bed frame that's too low? You need a metal mattress base. This heavy-duty mattress base features spacing between slats to effectively prevent mattress sagging. Standing tall, it's constructed from sturdy steel for enhanced stability and durability, ensuring long-lasting performance. All models come with a neutral-toned cover and feature non-slip elastic straps for easy assembly and disassembly.

Very happy with this box spring! Good quality, and it fits nicely in my bed frame. A great purchase!. Anonymous. Sat Oct 24 2026

We are here to help you select what’s best for your sleep. Our easy wood box spring/foundation with simple assembly is just what supports your favorite mattress. Don’t have a mattress? Do not worry. Our box spring bed frame is specifically designed to handle all kinds of mattresses even heavier ones like memory foam and latex. The sturdy design is crafted using lightweight but dense lumber so that any kind of stress on the mattress does not create squeaks. The traditional box spring design has equally distant wooden slats so the product supports imbalance easily. Get this beautiful piece to adorn your home and give your mattress the love it deserves. Our manufacturing abides the strict quality standards so you get to stop worrying over durability. The product is shipped to you in an easily assembled structure so setting it up is fun. Moreover, our configuration allows you to create your heaven for your beauty sleep.

Definitely good quality, everything is perfect, definitely would recommend for a home buyer or tenant! Thanks wayfair!. Samuel Biru. San Diego Ca. Tue Aug 11 2026

Cherish the sweetest of your dreams and a peaceful sleep with the Wooden Box Spring. This charming deluxe product has been handcrafted by our team in such a way that it provides underlying support for the mattresses. The cheapest, long-lasting plush and the best thing you can buy. Hand-finished and traditional for a clean look, our low-profile platform twin bed frame is made of sustainably sourced and responsibly firm wood. We're an online furniture store that stocks a variety of furniture on Wayfair, like Wooden Box Springs, sets, bunkie boards, trifolds, bunk beds, toppers, metal beds, etc. We know finding furniture stores locally is hard, so we have boxed everything you need on Wayfair. Our product is manufactured to be the same size as the bed and provides extra support for your mattress. The soft cushion support, by a wooden frame filled with slats wrapped in the garment. It provides underlying support for the mattress which will result in improving air-flow between the mattresses resulting in keeping their temperature cooler. Moreover, it raises the mattress to a more comfortable height and gives a smart base increasing the durability of the mattress by absorbing the shocks impacting on it and stops from moving. The even number of spaced slats with slatted support ensures that your mattresses are covered from any damage or wear and tear. It supports the slat and innerspring mobility and the flat riser prevents from folding and will allow you to rest better like a king. It's time for the rest you deserve! Gift yourself or a loved one a treasured beauty rest experience!!

Easy to assemble and fit perfectly. Good value. Rapid shipping and well packaged. Well pleased customer. Will do repeat business as need. Easy to recommend.. Gary. Covington, LA. Sat Oct 24 2026

This bamboo box spring offers a streamlined, budget-friendly foundation for your mattress. Available in multiple heights—5'', 7.5'', or 9''—it lets you choose the right profile for your setup. The steel frame is designed to reduce squeaking and sagging, while the removable cover with elastic edges makes it easy to keep clean. Ideal for bedrooms or guest rooms, it supports your mattress without the need for a box spring. Plus, the slatted design promotes airflow to help keep your mattress fresh.

This mattress foundation was boxed nicely, easy to install, and appears to be very sturdy. Would order it again! Waiting for our mattress to arrive and then we will have our guest room ready to use.. Shelley. Lewisberry, PA. Fri Oct 09 2026

Enjoy the strong support and convenience of the new Low Profile Metal Smart Box Spring by Zinus, offering the look and functionality of a traditional box spring, but made from steel for longer-lasting durability. Wood slats provide strong, comfortable support. Compact packaging allows for tight interior spaces such as stairs and hallways. Easy assembly with all the needed tools included.

Super easy smart box spring and its seen very durable, I like it, no more squeekee wood box spring. Enid. Killeen, TX. Tue Jun 09 2026

Box spring with it’s strong metal frame of this mattress foundation guarantees robust support for your mattress. Experience a stable and secure sleeping surface that stands up to regular use, providing lasting comfort. Engineered for a quiet and noise-free experience, creating a serene environment for a restful night's sleep. Designed with user convenience in mind, assembly is a breeze. Follow simple instructions for easy setup, allowing you to enjoy the benefits of your new box spring without the hassle of complex installations

Very durable! My teenager has put this frame through it! Would definitely buy again. Helps the mattress sit higher in the set so there less of a gap.. Smith. Sat Oct 24 2026

We are here to help you select what’s best for your sleep. Our easy wood box spring/foundation with simple assembly is just what supports your favorite mattress. Don’t have a mattress? Do not worry. Our box spring bed frames are specifically designed to handle all kinds of mattresses even heavier ones like memory foam and latex. The sturdy design is crafted using lightweight but dense lumber so that any kind of stress on the mattress does not create squeaks. The traditional box spring design has equally distant wooden slats so the product supports imbalance easily. Get this beautiful piece to adorn your home and give your mattress the love it deserves. Our manufacturing abides the strict quality standards so you get to stop worrying over durability. The product is shipped to you in an easily assembled structure so setting it up is fun. The product has an assortment of sizes to cater to your needs namely: twin, twin XL, full, full XL, queen, king, and California king. Moreover, our configuration allows you to create your heaven at the height of 5” and 8” for your beauty sleep.

Very easy to put together and good quality.. Kathy. West Melbourne, FL. Fri Sep 25 2026

We are a proud manufacturer of the finest quality mattresses and box springs, with the highest standards in durability, quality, comfort, and beauty. All of our products are to ensure that you get only the best.

This box frame was easy to assemble with only a Phillips head screw driver and the wrench that was provided. I ordered the queen size and the cover that came with it was made for a full size mattress. The company is sending me the queen size cover and I am returning the full size one. Otherwise, I believe it is very well made and the cover seems like good quality material.. Anonymous. Sat Oct 24 2026

The right kind of smart box spring bed base can change everything & provide mattress comfort and stability. It’s the difference between deep sleep and restless nights. Between a mattress setup that fits easily through stairwells, and one that gets jammed halfway up the landing. Between moving in stress-free… and not at all.That’s why this fully assembled wood box spring was built for real life. Solid wood pieces, durable joints, and Amish craftsmanship come together to give your mattress the support it needs – without the headaches you don’t.Instead of stiff metal or squeaky materials, you get natural wood with just the right amount of give. It stays quiet through the night and comfortable under pressure, helping your mattress feel more supported.PRODUCT SPECIFICATIONS:Sizes: Twin, Twin XL, Full, Full XL, Queen, King, Queen(Fold), King(Fold), California King(Fold)Heights: 4" or 8"Colours: or Material: Solid WoodAssembly: Fully AssembledOrigin: AmishIncludes: Box Spring OnlySPLIT DESIGN FOR EASY TRANSPORTForget the frustration of cramming bulky box springs through doorframes. This comes in split pieces – able to fit through tight stairwells and be easily set up once in the room. Great for any setup, especially if space is limited.SOLID SILENT SUPPORTThe wood frame flexes just enough to be comfortable without creaking or shifting over time. It works with all mattress types like memory foam, latex, spring and hybrid—and gives you a stable, quiet base that stays supportive through the night. Strong support for your mattressBY THE AMISHThis box spring foundation is by experienced Amish craftsmen who take pride in doing things right. From the quality of the wood to the precision of the joints – it’s built with care and built to last.One of the key benefits of this box spring is its ability to absorb pressure, which helps distribute weight evenly across the bed, reducing the amount of pressure on your back, neck, and other joints. Additionally, this box spring is available in a range of sizes and thickness options, including twin, twin XL, full, full XL, queen, king, queen(Fold), King(Fold)and California king(Fold), so you can choose the level of support that best suits your needs and also available in low profile bed base and high profile bed base.Plus, with its sleek and simple design, this box spring will complement any bedroom decor. It is available in two stylish colours, and , so you can choose the one that best fits your style. Durable frame with horizontal slats for strong mattress supportIn summary, our natural wood box spring is the perfect accessory for anyone who wants a durable, supportive, and fully assembled box spring for their mattress. With its ability to distribute weight evenly, it reduces pressure on your body and ensures a comfortable sleep. Choose from a range of sizes and thickness options and upgrade your bedroom with this must-have accessory today!

Luv it, lowered bed by 5 inches! Can now put the restraints and hand-cuffs on the lower bar of the headboard.. Knust. Hermosa Beach, CA. Wed Oct 21 2026

Welcome to the Alwyn Home! Here we offer you the best prices for the best quality. Come have a look at our latest Split Fully Assembled Box Spring for Mattress from our Alwyn Home collection. This design is handcrafted so that you forget back pains and discomfort forever. Lay down your favorite mattress on our box spring to enjoy the beautiful sleep you always wanted. The equally distant slats and wood frame do not let the frame loosen up and are strong enough to handle various kinds of duress. You don’t need to worry about a squeaky bed frame ever again. The excellent packaging and design of the box spring are pre-assembled, just the perfect fit for your bedroom. The product is lightweight even as a traditional box spring and lets you have these benefits in assorted sizes namely: Twin, Twin-XL, Full, Full XL, Queen, King, and California King. We have twin profiles of the product in 4” and 8” thicknesses crafted just for your needs.

Love that you just open up the box and the foundation is already assembled. Just have to put the two sides together on the bed.. Anonymous. Fri Oct 23 2026

Designed for a lower overall bed profile, this 5-inch metal box spring provides sturdy mattress support without adding unnecessary height. The heavy-duty steel frame offers reliable everyday support, while the low-profile design works especially well with taller mattresses. An anti-slip surface helps keep your mattress securely in place, and the quiet construction helps minimize unwanted noise. A fabric cover gives the foundation a clean, finished look, while included hardware, tools, and instructions make assembly simple. A practical choice for creating a stable, comfortable, and streamlined mattress foundation.

I must say I was a little skeptical buying a box spring that had to be put together as I had never heard of this before. In all honesty it’s a very smart idea! It went together very quickly and you would never know it came in a box and had to be built!. Anonymous. US. Sun Jul 12 2026

Focused on creating a simple, stylish, safe, and comfortable box spring, delivering a non-slip and noise-free sleep environment so your family can enjoy better sleep—backed by 20+ years of innovation.

I got the metal box spring it was very easy to put together. I actually put that together on my own then it came with the covering and I was just able to put the covering over. The metal frame took me about probably an hour if I had another person to help me it would’ve been less but very easy. I love it.. Royneisha. Tue Sep 29 2026

Our 4 Inch heavy-duty box spring is designed to provide comfortable support under any mattress. It takes lots of time for us to pick out the right mattress. But they're not the only important part of your bed - you also need the right mattress foundations! Crafted from durable metal with a heavy-duty box spring design, its sleek, clean lines blend seamlessly with classic decor styles. (The product only includes a box spring, the mattress and bottom frame are not included.).

The right kind of smart box spring bed base can change everything & provide mattress comfort and stability. It’s the difference between deep sleep and restless nights. Between a mattress setup that fits easily through stairwells, and one that gets jammed halfway up the landing. Between moving in stress-free… and not at all.That’s why this fully assembled wood box spring was built for real life. Solid wood pieces, durable joints, and Amish craftsmanship come together to give your mattress the support it needs – without the headaches you don’t.Instead of stiff metal or squeaky materials, you get natural wood with just the right amount of give. It stays quiet through the night and comfortable under pressure, helping your mattress feel more supported. Colours: White or GrayMaterial: Solid WoodAssembly: Fully AssembledIncludes: Box Spring OnlySPLIT DESIGN FOR EASY TRANSPORTForget the frustration of cramming bulky box springs through doorframes. This comes in split pieces – able to fit through tight stairwells and be easily set up once in the room. Great for any setup, especially if space is limited.SOLID SILENT SUPPORTThe wood frame flexes just enough to be comfortable without creaking or shifting over time. It works with all mattress types like memory foam, latex, spring and hybrid—and gives you a stable, quiet base that stays supportive through the night. Strong support for your mattressMADE IN AMERICA BY THE AMISHThis box spring foundation is made in the USA by experienced Amish craftsmen who take pride in doing things right. From the quality of the wood to the precision of the joints – it’s built with care and built to last.One of the key benefits of this box spring is its ability to absorb pressure, which helps distribute weight evenly across the bed, reducing the amount of pressure on your back, neck, and other joints. Additionally, this box spring is available in a range of sizes and thickness options, so you can choose the level of support that best suits your needs and also available in low profile bed base and high profile bed base.Plus, with its sleek and simple design, this box spring will complement any bedroom decor. It is available in two stylish colours, white and Gray, so you can choose the one that best fits your style. Durable frame with horizontal slats for strong mattress supportIn summary, our natural wood box spring is the perfect accessory for anyone who wants a durable, supportive, and fully assembled box spring for their mattress. With its ability to distribute weight evenly, it reduces pressure on your body and ensures a comfortable sleep. Choose from a range of sizes and thickness options and upgrade your bedroom with this must-have accessory today!

I bought this because my mattress needed to be a little higher to be even with my nightstands. I live alone, and it looked like I might be able to deal with these folding foundations on my own. The box they were delivered in was a bit heavy and awkward to get into the house (I wish all large boxes had handles punched into them), but once I did, it was easy enough to maneuver the foundations into place under my existing mattress. Another plus is that they lift the mattress above a one inch lip around the bed's platform, making it quite a bit easier to put clean sheets on. So far, they don't make any noise and solved all the problems I was hoping to solve.. Elaine. Cincinnati, OH. Thu Sep 03 2026

Looking for a reliable foundation that offers firm, even support for your mattress? The Slumber Solutions 5.5-inch Wood Box Spring is a low-profile solution built for strength and stability. Crafted with a solid wood frame and supportive wood slats, this foundation is designed to extend the life of your mattress and provide consistent comfort night after night. Its compact 5.5-inch height makes it perfect for those who prefer a lower bed profile while still enjoying superior mattress support.

Very nice and sturdy ! A very good wood mattress foundation and the price is great. Sunshine. Bossier City, LA. Thu Oct 15 2026

The Serta Low Profile Box spring offers support, durability, and reduced motion. When used with a proper supportive bed frame, it helps prevent sagging and blowing for the life of the mattress

Good support in a low profile. We also have a narrow stairway as our home is built on pilings so we wouldnt have gotten a one piece king box spring up the stairs regardless, so we were excited to see this option.. Dan. MI. Sat Sep 12 2026

Built with a robust metal frame, this heavy duty metal box spring guarantees superior support for your mattress. Experience a stable and secure sleeping surface that stands up to daily use, providing lasting comfort for years to come. Engineered specifically for a noise-free experience, this mattress foundation creates a serene environment, ensuring you enjoy undisturbed, restful sleep. Additionally, designed with user convenience in mind, assembly is an absolute breeze. Simply follow the straightforward instructions for a quick setup, allowing you to enjoy the benefits of your new heavy duty box spring without the hassle of complex installations.

Very easy to assemble, sturdy and fits perfectly. Just make sure you have corner brackets on your frame to prevent it from sliding.. Ginny. Venice, FL. Sat Oct 10 2026

Sturdy Construction: This size box spring features a heavy duty metal frame and reinforced steel construction. Whether you're using it on your own or sharing it with a partner, it can support up to 3000 lbs, ensuring that your mattress stays in great condition.

Easy to build. Durable. Instructions are easy to read. The cover is like a bed sheet cover but it’s thick material.. Jesenia. Fri Oct 16 2026

Solid support, easy setup – for a restful sleep!:This box spring is made of high-hardness, thickened all-metal material and features a reinforced frame structure, providing solid support with a strong weight capacity of 3500 lbs / 1587.57 kg. It is stable and resistant to wobbling. Additionally, it comes with all the necessary accessories and instructions, making installation easy even without prior experience.

It was exactly what we ordered. It was a great price too.. Anonymous. NY. Sat Oct 24 2026

Transform your sleep experience with our 5-inch Wooden Box Spring. This box spring is the foundation of sturdy and dependable mattress support, compatible with a wide range of mattress types, including memory foam and latex, ensuring a firm and restful night's sleep. Constructed with durable wooden slats and a linen fabric cover, it's built to last and designed to preserve your mattress in perfect condition for years to come. Crafted for unbeatable durability, this box spring provides a robust and noise-free foundation for all mattress types. Its innovative design, featuring slats or a grid, enhances air circulation, reducing moisture buildup and allergens in your mattress, and creating a healthier sleep environment. The linen fabric cover adds an elegant touch to your bedroom decor, seamlessly complementing your mattress and bed frame. Available in Twin, Full, Queen, and King sizes, this box spring is a versatile choice for any bedroom. With all the necessary hardware included for easy assembly and the convenience of shipping in a single box, upgrading your sleep setup has never been simpler.

Good quality. Easy to put together!. Sue. Needham, MA. Tue Oct 20 2026

A sturdy RTA mattress foundation for a restful night's sleep at a value-added price! This box spring foundation technology is designed to extend the life of your mattress while evenly distributing weight, and providing support and stability that reduces mattress movement. The complete frame is wrapped in a woven polyester fabric cover. While easy to transport, this frame fits and stores in tight spaces and is ready to assemble in any bedroom space to suit your needs.

I've never assembled a box spring before, and it seems sturdy for this price point. I ordered the twin size, and was able to put it together by myself except for one step - I wanted to stretch the slats all the way to the edge of the recessed area so the straps would be taut. Consider wearing gloves for assembly, lots of splintery wood. My only suggestion for the seller is they should put an extra of each of the smaller hardware bits just in case they got lost. I almost lost a spring washer twice!. Kimberly. Broomfield, CO. Wed Sep 16 2026

This spring mattress has both supporting force and softness, and has good resilience. You can use it yourself or commercially. The bottom is non-slip and has four-corner elastic bands, which can be well fixed. The cover can be detached and washed, which is convenient for cleaning.

For Queen guest bed. Seems very comfortable but no one has yet spent a night on it. Only spring and foam topper I could find anywhere. Im happy with my purchase.. Virginia. Allen, TX. Fri Sep 11 2026

The Serta Flat Mattress Foundation is a box spring alternative and provides the perfect support for your Serta mattress, adds 9” in height to your bed, and is designed to provide durability and long-lasting comfort. Pairing this bed base with your mattress will support it and extend its life while helping isolate the effect of your partner’s movements in bed.

Great quality and meeting all needs. Anonymous. Monterey, TN. Sat Aug 22 2026

We like to think of box springs as the backbone for your mattress. The best kind should be flat, level, and built to keep your mattress in tip-top shape. And that describes this box spring to a T. With its easily assembled, dependable structure, you can rest assured that your mattress has the best foundation it can have. Made from metal, it comes with a polyester cover in white and blue for a classic look we love. Packed in a box with everything you need, it also includes a 5-year warranty from the manufacturer.

Loved this box spring! So easy to put together! Liked the fact of the metal bars and not actual springs. Very supportive Would recommend - put together on top of frame made it easier to. Kim. Wellington, OH. Sun May 10 2026

Upgrade your sleep setup with the Bunkie Board, designed to deliver strong, reliable support without the need for a bulky box spring. Whether you're dealing with a sagging mattress or simply want a more stable foundation, this heavy-duty bunkie board provides the perfect solution. Crafted to offer firm and even mattress support, this bunkie board helps prevent sagging, improves overall comfort, and extends the life of your mattress. It works seamlessly with memory foam, hybrid, and traditional spring mattresses, giving you a better night’s sleep every time. The low-profile design allows you to maintain a modern, streamlined bed setup while eliminating the need for a box spring. Ideal for platform beds, bunk beds, and other bed frames, it keeps your mattress supported without adding unnecessary height. Built from durable Fiber Board, this heavy-duty support system distributes weight evenly across your bed frame, ensuring long-lasting strength and stability. Unlike weaker alternatives, it is designed to hold up over time without bending or shifting. Enjoy a peaceful night with a noise-free and non-slip design that keeps your mattress securely in place. No more creaking, sliding, or constant adjustments—just consistent support and quiet comfort. Installation is quick and effortless—no tools required. Simply unfold and place the bunkie board on your bed frame, and it's ready to use in under a minute. For larger sizes like King, Queen, Full, and Cal King, the board comes in two sections for easy handling and setup, while Twin and Twin XL sizes come as a single piece. For best results, we recommend measuring the inside width of your bed frame before ordering to ensure a proper fit, as bed frame dimensions may vary.

I should have bought this when I bought my Purple mattress 5 years ago! Using a regular box spring under a Purple mattress will cause the grid to lose its shape and creates valleys in the mattress. Placing the Bunkie Board on top of the box spring restored the grid to its natural shape, and NOW I sleep on the mattress just like I did when I got it home! I'll be buying these for EVERY SINGLE Purple mattress I own!!!. Yokasta. NM. Mon Oct 19 2026

The foundation of your bed is important, and this easy-to-assemble metal box spring provides the ideal environment for peaceful sleep and beautiful dreams on your mattress. Made of metal for sturdiness, it comes with a standard steel box spring design and a gray and white cover palette, with clean lines that work well with modern and classic décor for a sleek and stylish look. No hassle is required, just take this box spring out of the shipping box and simply assemble it, top it with your mattress of choice and you're ready for a good night's sleep.

It’s a nice bed I will say it is more firm than I was expecting it’s advertised as a hybrid. I’ve only had memory foam in the past so maybe I’m soft biased. Anonymous. Fri Jun 12 2026