Everyone needs a great night’s sleep for optimum health and wellness. However, with so many different products on the market today, it can be overwhelming when try to choose the best products, especially when working with a tight budget. Because of limited spending budgets, you may want to skip the king-size box spring altogether, hoping to cash in on some extra savings. However, with our list of amazing and cheap king-size box springs, you don’t have to sacrifice important support for your mattress.

We will tell you everything you need to know about king-size box springs, from why you may need one, to what to look for when shopping, our exclusive hand-picked list of top products on market, and informative buying guide, and more! We help you every step of the way to help you not only with purchasing the essential items you need to complete your bedroom sets, but information that will help you anytime you are looking for quality furniture.

When shopping for a new mattress or bedroom set, you may be left wondering what a king-size box spring does and if you really need one? The answer is no, you don’t necessarily need one, but they are the best way to support your mattress to avoid back pain and other injuries or strain from not getting the proper support you need. A lack of a king-size box spring can also cause your mattress to wear out faster and cause unwanted lumps and uneven wear. You have to put your mattress on some kind of platform for the most comfortable and convenient use.

There are platform beds that have wooden slats to replace box springs, but the downside is that they can be very expensive. You could put your mattress directly on the floor but then you have the risk of toxic mold growing beneath it since the mattress will not get proper airflow. So, although not mandatory, a king-size box spring is essential to a great bedroom setup. The mattress to its box spring is like peanut butter to jelly, they just belong together.

When beginning to research the best cheap king-size box spring to purchase, there are a few key elements you want to examine: product quality, customer satisfaction, price, and manufacturer warranty.

Another important factor for consumers is the ease of assembly and mobility. All of the box springs we choose to arrive in small, compact packaging that requires no special delivery to receive and can be handled by one person alone. They are simple to set up, taking as little as 15 minutes to complete (according to the glowing Amazon reviews).

One of these is even completely assembled and ready to use out of the box! All have minimum 3-year warranties on their products and offer a variety of sizes and materials to suit the needs of anyone who needs a box spring right now! Check out our fabulous list!

Top 5 Cheap King Size Box Spring Reviews

This section is the most important part of this article. In this section, I am going to analyze the top 5 cheap king-size box springs on the market together with their benefits and features. You will get the required information concerning the best box springs on the market. Let’s see the list:

Top 5 Cheap King Size Box Spring In Summary

#King Size Box SpringSizeThicknessWarrantyOur Rating
1Zinus 9 Inch High Profile Smart Box SpringTwin, Twin-XL, Full, Queen, King, California King9 in5 Years5.0/5.0
2Classic Brands Instant Foundation High Profile Twin, Twin-XL, Full, Queen, King, California King8 inNo5.0/5.0
3Classic Brands Instant 4 Inch Low Profile Box SpringTwin, Twin-XL, Full, Full-XL, Queen, King, California King4 inNo4.8/5.0
45 Inch Low Profile Smart Box SpringTwin, Twin-XL, Queen, King, California King5 in5 Years4.9/5.0
57.5 Inch High Profile BiFold Box SpringTwin, Full, Split King7.5 in5 Years5.0/5.0

1. 9 Inch High Profile Smart Box Spring

Cheap King size Box Spring 9 Inch High Profile Smart Box Spring

The Smart Box box-spring from Zinus features strong steel construction for long lasting and worry free support. This box spring also has the highest profile of all the products on our list with an impressive 9-inch high support structure.

This box spring is the perfect choice for those who like a slightly higher bed without having to add extra pillow toppers to the mattress in an attempt to a few extra inches of height.

Despite its large size, the box spring arrives in extra compact packaging to make it easier to transport through smaller spaces and upstairs. Also, includes all the necessary tools for assembly.


  • Size: King
  • Product Dimensions: 76 x 79 x 9 inches
  • Item Weight: 50 pounds
  • Shipping Weight: 52 pounds
  • Available in Twin, Twin XL, Full, Queen, King, Cal King


  • Includes all tools for easy assembly
  • Convenient and compact packaging
  • It is easy to follow assembly video on Amazon
  • 5-year limited warranty
  • Low price point


  • None

 Buy on Amazon

2. Instant Foundation High Profile 8-Inch Box-Spring review

Cheap king Size Box Spring Instant Foundation High Profile 8-Inch Box-Spring

The Instant Foundation box spring from Classic Brands is simple to assemble and supportive. Suitable for all types of mattresses, this box spring is also very durable and noise-free.

The compact packaging design allows you to easily set up in even small areas without having to pay for an expensive furniture store that includes delivery and assembly. Basic tools and instructions are included for this solid wood frame (spruce) with easy lock and fit slats.

Manufactured by the Amish, who really understand quality woodworking and craftsmanship! Also, includes a three-year warranty.


  • Size: King
  • Technical Details
  • Item Weight 54 pounds
  • Product Dimensions 79 x 75.5 x 8 inches
  • Available in Twin, Twin XL, Full, Full XL, Queen, King, and California King sizes.


  • – Easy to assemble
  • – Handcrafted with solid spruce
  • – Made in the USA by the Pennsylvania Amish


  • – Higher price point
  • – Wood is unfinished

Buy on Amazon

3. Low Profile 4-Inch Box-Spring review

Cheap King Size Box Spring Low Profile 4-Inch Box-Spring

This box spring also from Classic Brands is another lower-cost box spring that offers high quality and support to meet any budget. This unit is easy to put together even by one person working alone with limited tools.

Simple step by step instructions included. Solid wood construction made by our homegrown woodworking geniuses; the Amish.

Lower profile height for those who are older, have mobility problems or don’t like to “climb” into bed. Noise-free, ultra-durable and comes in small packaging that is easy to transport into tight areas or up flights of stairs. Three-year warranty included.


  • Size: King
  • Item Weight 52.8 pounds
  • Product Dimensions 79 x 75.5 x 4 inches
  • Origin Made in the USA
  • Available in Twin, Full, Queen, King, Twin XL, Full XL and California King sizes.


  • – Lower cost than instant foundation
  • – Solid spruce construction
  • – Made in the USA by the Pennsylvania Amish


  • – Many customers added extra slats (not included)

Buy on Amazon

 4. 5 Inch Low Profile Smart Box Spring review

5 Inch Low Profile Smart Box Spring

This new 5 inch low-profile box spring from Zinus offers affordable and sturdy mattress support that includes everything for a quick in easy set-up (in as little as 15 minutes!)

The solid metal framing is great for use with children (who can break wooden slats by jumping on beds), is lower for those who cannot use high beds due to mobility issues, age or personal preference. Compact packaging is great to move anywhere in your house with ease. Comes with a worry-free 5-year limited warranty


  • Size: King
  • Item Weight 43.8 pounds
  • Product Dimensions 79 x 76 x 5 inches
  • Made in China


  • – Sturdy metal frame
  • – Easy to assemble
  • – The good medium price point
  • – 5 year limited warranty


  • – Some customers have received bent frames

Buy on Amazon

5. 7.5 Inch High Profile BiFold Box Spring

Cheap King Size Box Spring 7.5 Inch High Profile BiFold Box Spring

This folding box spring from Zinus is the best of the bunch and for very good reason. There is no assembly required and can be used right out of the box! It doesn’t get any easier than that. The lightweight steel framing weighs in under 40 lbs, and it folding completely flat for easy storage or to move into tight spaces.

The box spring’s 7.5-inch height is more than most of the competitors at the same price or even higher price points, giving you great support and more bang for your buck. As with all Zinus products, this one comes with their 5-year limited warranty.


  • Style Name:7.5 Inch
  • Size: Split King
  • Product Dimensions: 79 x 75 x 7.5 inches
  • Item Weight: 54 pounds


  • – No assembly!
  • – Low price point


  • – None

Buy on Amazon

Buying Guide Of King Size Box Spring

Cheap King Size Box spring

This information will help you see how we determined which box springs to choose from our list and why? 


Low Prices!

One of the biggest pluses of ordering your box spring online as opposed to from the traditional furniture is the incredible savings you will find. Yes, most furniture stores offer free delivery and assembly, but they also cost 3 or more times the prices, which factors in the cost of delivery and paying a labor force to assemble.

Easy to Assemble

Customers across the board were pleased with how simple and fast these box springs are to assemble, and most were done by a single person in under an hour. The boxes they are packaged in are designed to be slim and easy to move so you can take everything in the box to the room where you will be putting it together without having to take it apart in a larger area and then move it piece by piece. (eliminating the risk of losing precious screws and parts!) 

Quality Materials 

We have both wood and metal construction on our list, to accommodate different consumer preferences. Both were listed as being high quality and durable, and both were just as simple to set up as the other. 

Great Warranties

All of the box springs we chose have between 3 and 5-year warranties that are fully backed by their manufacturers. 


Some consumers found issues with the manufacturing of their frames, including bent pieces or needed to modify the product to add support. Other than occasional complaints, there were very little as far as downsides to these products. Customers were really impressed with their great prices and high quality.

Frequently Asked Questions (FAQ)

Q: Do you need a box spring?

A: Not if you have a platform bed or another form of support to keep your mattress elevated off the floor.

Q: Do you need to use a bed frame with a box spring?

A: Usually yes, because box springs are designed for support, but not to take all of the weight of the mattress, especially is constructed from wood. However, some consumers have chosen to modify their box springs by adding additional support and legs to the bottom to use them as combination box springs and bed frames.

Q: Do these products have warranties?

A: Yes, the are fully backed by either 3 or 5-year warranties depending on the manufacturer.

Q: Do I have to assemble it?

A: Yes, most box springs require some assembly, but the parts are precut for easy fit and the tools and directions are also included.

Final words

When shopping for a box spring for your new or current mattress, you want to focus on quality and craftsmanship for many years of worry-free use and comfort. There really are options for everyone on our list, from different height profiles, a variety of materials, easy assembly, and more. Our top pick is the simplest box spring you will ever buy with its ready out of the box assembly free folding design.

We worked hard to take the guesswork out of purchasing your next box spring for you. We researched the companies with the best reputations and warranties, the products with the highest customer ratings and satisfaction, and focused on products with the best prices. Pleased with what we came up with and we know that you will love our selection as well. Check out our curated list of products, and you will sleep easy tonight knowing that you made an informed choice that will give you sweet dreams for years to come- with your new box spring.

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