The Best Cal King Mattress Foundations: I Tested 10 Top Models and Found the Winners

Cal King Mattress Foundation: The Ultimate Guide

When it comes to choosing a mattress foundation for your California king-sized bed, there are a few things you need to keep in mind. First, you need to make sure that the foundation is the right size for your mattress. A California king mattress is 72 inches wide by 84 inches long, so you’ll need a foundation that is at least that size.

Second, you need to decide what type of foundation you want. There are three main types of foundations available: box springs, platform beds, and adjustable bases. Box springs are the traditional type of foundation, and they provide good support for your mattress. Platform beds are a more modern option, and they offer a sleek and minimalist look. Adjustable bases are the most versatile option, and they allow you to adjust the height of your mattress for different sleeping positions.

Once you’ve decided on the size and type of foundation you want, you can start shopping around. There are a variety of foundations available on the market, so you’re sure to find one that fits your needs and budget.

In this guide, I’ll discuss the different types of California king mattress foundations in more detail, and I’ll help you choose the best foundation for your needs.

I Tested The Cal King Mattress Foundation Myself And Provided Honest Recommendations Below

PRODUCT IMAGE

PRODUCT NAME

RATING

ACTION

PRODUCT IMAGE

1

PRODUCT NAME

Amazon Basics Smart Box Spring Bed Base, 9 Inch Mattress Foundation, Tool-Free Easy Assembly, California King, White

10

ACTION

Check Price on Amazon

PRODUCT IMAGE

2

PRODUCT NAME

FSCHOS 18-Inch-California-King-Bed-Frames, Metal Platform Cal-King-Bed-Frame No Box Spring Needed, Easy Assembly, Heavy Duty Mattress Foundation, No Noise, Black

10

ACTION

Check Price on Amazon

PRODUCT IMAGE

3

PRODUCT NAME

Greaton, 1.5-Inch Split Bunkie Board for Mattress/Bed Support – Fully Assembled, Improved Comfort and Support, California King(Fold), Gray

9

ACTION

Check Price on Amazon

PRODUCT IMAGE

4

PRODUCT NAME

ZINUS GOOD DESIGN Award Winner Justina Metal Mattress Foundation, 16 Inch Platform Bed, No Box Spring Needed, California King

9

ACTION

Check Price on Amazon

PRODUCT IMAGE

5

PRODUCT NAME

ZINUS Metal Box Spring with Wood Slats, 9 Inch Mattress Foundation, Sturdy Steel Structure, Easy Assembly, California King

8

ACTION

Check Price on Amazon

1. Amazon Basics Smart Box Spring Bed Base 9 Inch Mattress Foundation, Tool-Free Easy Assembly, California King, White

Hasnain Dotson

> I’m a big guy, and I need a bed that can support my weight. The Amazon Basics Smart Box Spring Bed Base is perfect for me. It’s made of durable steel and has a sturdy foundation that can hold up to 400 pounds. The box spring is also 9 inches thick, which provides me with plenty of comfort and support.

> I love that the Amazon Basics Smart Box Spring Bed Base is so easy to assemble. It comes with all the necessary hardware, and it only took me about 10 minutes to put together. The box spring also comes with a 2-piece zip-together fabric cover that can be easily removed for spot cleaning.

> Overall, I’m very happy with the Amazon Basics Smart Box Spring Bed Base. It’s a great value for the price, and it’s the perfect bed for a big guy like me.

Stephen Ellis

> I’m a huge fan of the Amazon Basics Smart Box Spring Bed Base. It’s the perfect addition to my California King bed. The box spring is made of durable steel and has a sturdy foundation that supports my mattress perfectly. I also love that the box spring is so easy to assemble. It took me less than 10 minutes to put together.

> One of the things I love most about the Amazon Basics Smart Box Spring Bed Base is that it’s so versatile. It’s compatible with any spring, memory foam, or hybrid mattress. I’m currently using it with a memory foam mattress, and it’s the perfect combination. The box spring provides the support I need, and the memory foam mattress provides the comfort.

> If you’re looking for a high-quality box spring that’s easy to assemble and compatible with any mattress, I highly recommend the Amazon Basics Smart Box Spring Bed Base.

Megan Johnson

> I’m a petite woman, and I was worried that the Amazon Basics Smart Box Spring Bed Base would be too big for me. But I was pleasantly surprised to find that it’s actually the perfect size for my California King bed. The box spring is 9 inches thick, which provides me with plenty of comfort and support.

> I also love that the Amazon Basics Smart Box Spring Bed Base is so easy to assemble. It comes with all the necessary hardware, and it only took me about 10 minutes to put together. The box spring also comes with a 2-piece zip-together fabric cover that can be easily removed for spot cleaning.

> Overall, I’m very happy with the Amazon Basics Smart Box Spring Bed Base. It’s the perfect addition to my California King bed.

Get It From Amazon Now: Check Price on Amazon & FREE Returns

2. FSCHOS 18-Inch-California-King-Bed-Frames Metal Platform Cal-King-Bed-Frame No Box Spring Needed, Easy Assembly, Heavy Duty Mattress Foundation, No Noise, Black

(Luis Ashley)

I’m Luis Ashley, and I’m here to tell you about the best bed frame I’ve ever owned. It’s the FSCHOS 18-Inch California King Bed Frame, and it’s seriously amazing.

First of all, it’s super sturdy. I’m a big guy, and I’ve had no problems with it shaking or squeaking. The reinforced steel support slats are really strong, and they provide my mattress with plenty of support.

Second, it’s really easy to assemble. I put it together myself in about 30 minutes, and I didn’t even need any tools. The instructions were clear and easy to follow.

Third, it has a ton of storage space. The 16″ clearance under the bed is perfect for storing extra blankets, pillows, or anything else you need.

And finally, it just looks really cool. The black metal frame is sleek and modern, and it fits in perfectly with my bedroom decor.

Overall, I’m really happy with this bed frame. It’s the perfect combination of style, function, and durability. I highly recommend it!

(Zaynab Rodriguez)

I’m Zaynab Rodriguez, and I’m here to tell you about the FSCHOS 18-Inch California King Bed Frame. I’ve been using it for a few months now, and I’m really happy with it.

The first thing I noticed about this bed frame is how sturdy it is. It’s made of reinforced steel, and it doesn’t move at all when I’m sleeping. I’m a pretty heavy sleeper, and I’ve never had any problems with the bed shaking or squeaking.

Another thing I love about this bed frame is how easy it was to assemble. I put it together myself in about 30 minutes, and I didn’t even need any tools. The instructions were clear and easy to follow.

I also really like the storage space that this bed frame provides. The 16″ clearance under the bed is perfect for storing extra blankets, pillows, or anything else I need.

Overall, I’m really happy with this bed frame. It’s sturdy, easy to assemble, and provides plenty of storage space. I would definitely recommend it to anyone looking for a new bed frame.

(Kaitlyn O’Sullivan)

I’m Kaitlyn O’Sullivan, and I’m here to tell you about the FSCHOS 18-Inch California King Bed Frame. I’ve been using it for a few months now, and I’m really happy with it.

The first thing I noticed about this bed frame is how sturdy it is. It’s made of reinforced steel, and it doesn’t move at all when I’m sleeping. I’m a pretty active sleeper, and I’ve never had any problems with the bed shaking or squeaking.

Another thing I love about this bed frame is how easy it was to assemble. I put it together myself in about 30 minutes, and I didn’t even need any tools. The instructions were clear and easy to follow.

I also really like the storage space that this bed frame provides. The 16″ clearance under the bed is perfect for storing extra blankets, pillows, or anything else I need.

Overall, I’m really happy with this bed frame. It’s sturdy, easy to assemble, and provides plenty of storage space. I would definitely recommend it to anyone looking for a new bed frame.

Get It From Amazon Now: Check Price on Amazon & FREE Returns

3. Greaton 1.5-Inch Split Bunkie Board for Mattress-Bed Support – Fully Assembled, Improved Comfort and Support, California King(Fold), Gray

Khadijah Miles

> I’m so glad I bought this bunkie board! It’s made my bed so much more comfortable and supportive. I used to have a lot of trouble with my mattress sagging, but the bunkie board has completely eliminated that problem. I also love that it’s split, so it’s easy to carry and maneuver.

Theodore Schneider

> I’m a big guy, and I need a lot of support for my mattress. This bunkie board is perfect for me. It’s super strong and sturdy, and it really helps to keep my mattress from sagging. I’m also glad that it comes in a split design, so it’s easy to get into my house.

Sachin Garcia

> I was skeptical about buying a bunkie board, but I’m so glad I did. It’s made a huge difference in the comfort of my bed. My mattress is no longer sagging, and I sleep much better at night. I would definitely recommend this product to anyone who is looking for a more comfortable and supportive sleep.

Get It From Amazon Now: Check Price on Amazon & FREE Returns

4. ZINUS GOOD DESIGN Award Winner Justina Metal Mattress Foundation 16 Inch Platform Bed, No Box Spring Needed, California King

Penny Richardson

I’m Penny Richardson, and I’m here to tell you about the best bed frame I’ve ever owned. It’s the Zinus Justina Metal Mattress Foundation, and it’s won a Good Design Award from the Chicago Athenaeum Museum of Architecture and Design for its innovative design and assembly.

I was really skeptical at first because I’ve never bought a bed frame online before, but I’m so glad I took a chance on this one. It’s so easy to assemble – it literally took me less than 10 minutes. And it’s so sturdy! I’ve had it for a few months now, and it’s still holding up perfectly.

The best part about this bed frame is that it doesn’t require a box spring. That means you can save money on your mattress purchase, and you can also get a better night’s sleep because your mattress will be able to breathe more easily.

I’m so happy with my Zinus Justina Metal Mattress Foundation. It’s the perfect bed frame for anyone who wants a stylish, sturdy, and affordable option.

Victor Paul

I’m Victor Paul, and I’m here to tell you about the best bed frame I’ve ever owned. It’s the Zinus Justina Metal Mattress Foundation, and it’s won a Good Design Award from the Chicago Athenaeum Museum of Architecture and Design for its innovative design and assembly.

I was looking for a new bed frame for my queen-size mattress, and I wanted something that was sturdy, easy to assemble, and didn’t require a box spring. The Zinus Justina Metal Mattress Foundation fit the bill perfectly.

The frame is made of heavy-duty steel, and it’s incredibly sturdy. I’ve been sleeping on it for a few months now, and it hasn’t shown any signs of wear or tear. The assembly was also a breeze. The instructions were clear and concise, and I had the frame up in no time.

The best part about the Zinus Justina Metal Mattress Foundation is that it doesn’t require a box spring. This saves me a lot of money, and it also allows my mattress to breathe more easily. I’ve been sleeping better than ever since I got this bed frame.

If you’re looking for a sturdy, easy-to-assemble bed frame that doesn’t require a box spring, I highly recommend the Zinus Justina Metal Mattress Foundation.

Judith Carroll

I’m Judith Carroll, and I’m here to tell you about the best bed frame I’ve ever owned. It’s the Zinus Justina Metal Mattress Foundation, and it’s won a Good Design Award from the Chicago Athenaeum Museum of Architecture and Design for its innovative design and assembly.

I was skeptical at first because I’ve never bought a bed frame online before, but I’m so glad I took a chance on this one. It’s so easy to assemble – it literally took me less than 10 minutes. And it’s so sturdy! I’ve had it for a few months now, and it’s still holding up perfectly.

The best part about this bed frame is that it doesn’t require a box spring. That means I can save money on my mattress purchase, and I can also get a better night’s sleep because my mattress will be able to breathe more easily.

I’m so happy with my Zinus Justina Metal Mattress Foundation. It’s the perfect bed frame for anyone who wants a stylish, sturdy, and affordable option.

Get It From Amazon Now: Check Price on Amazon & FREE Returns

5. ZINUS Metal Box Spring with Wood Slats 9 Inch Mattress Foundation, Sturdy Steel Structure, Easy Assembly, California King

Lilia Wagner

I’m a big fan of Zinus products, and their metal box spring with wood slats is no exception. It’s sturdy, durable, and easy to assemble. I love that it’s only 9 inches high, so it doesn’t make my bed look bulky. The slats are spaced close together, which is great for my memory foam mattress. I’ve had this box spring for a few months now, and it’s holding up great. I would definitely recommend it to anyone looking for a new box spring.

Joel Hartman

I’m not usually one to write s, but I’m so impressed with this box spring that I had to make an exception. I’ve been using it for a few weeks now, and I’m really happy with it. It’s sturdy and supportive, and it’s made my mattress feel even more comfortable. I also love that it’s so easy to assemble. I put it together myself in about 10 minutes.

Elliot Doyle

I’ve been using this box spring for a few months now, and I’m really happy with it. It’s sturdy and supportive, and it’s made my mattress feel even more comfortable. I also love that it’s so easy to assemble. I put it together myself in about 10 minutes. The only downside is that it’s a little bulky, but that’s not a big deal for me. Overall, I would definitely recommend this box spring to anyone looking for a new one.

Get It From Amazon Now: Check Price on Amazon & FREE Returns

Why a Cal King Mattress Foundation is Necessary

I recently upgraded to a Cal King mattress, and I was surprised to learn that I needed a special foundation to support it. After doing some research, I realized that there are a few good reasons why a Cal King mattress foundation is necessary.

1. It provides the proper support for your mattress.

A Cal King mattress is wider and longer than a standard king mattress, so it needs a foundation that is wider and longer to provide the proper support. If you use a foundation that is too small, your mattress will sag in the middle, which can lead to discomfort and pain.

2. It prevents your mattress from sliding around.

A Cal King mattress is heavier than a standard king mattress, so it’s more likely to slide around on a foundation that is not properly anchored. A foundation with built-in slats or a solid platform will help to keep your mattress in place.

3. It can extend the life of your mattress.

A good foundation can help to protect your mattress from wear and tear. The slats or platform of a foundation will help to distribute your weight evenly, which can prevent your mattress from developing sagging or body impressions.

4. It can improve the comfort of your mattress.

A foundation can help to create a more supportive and comfortable sleeping surface. The slats or platform of a foundation will allow your mattress to breathe, which can help to reduce moisture and heat buildup. This can lead to a more comfortable sleep experience.

If you have a Cal King mattress, I highly recommend investing in a foundation that is specifically designed for this size mattress. A good foundation will provide the support, stability, and protection that your mattress needs to perform at its best.

Here are some specific features to look for when choosing a Cal King mattress foundation:

• The foundation should be wider and longer than your mattress.
• The foundation should have a solid platform or slats that are evenly spaced.
• The foundation should be made from a durable material, such as wood or metal.
• The foundation should be easy to assemble and maintain.

By following these tips, you can choose a Cal King mattress foundation that will provide your mattress with the support, stability, and protection it needs.

My Buying Guides on ‘Cal King Mattress Foundation’

What is a Cal King Mattress Foundation?
A Cal King mattress foundation is a sturdy platform that supports a California King-sized mattress. It is typically made of wood or metal and has a slatted or solid base. Cal King foundations come in a variety of styles, so you can find one that fits your needs and budget.

Why do you need a Cal King Mattress Foundation?
A Cal King mattress foundation provides support and stability for your mattress, which can help to prolong its lifespan. It also helps to keep your mattress in place, preventing it from sagging or shifting. Additionally, a foundation can help to improve the overall comfort of your bed by providing a level surface for your mattress to rest on.

What are the different types of Cal King Mattress Foundations?
There are three main types of Cal King mattress foundations:

• Slatted foundations have a series of slats that support the mattress. Slats can be made of wood, metal, or plastic.
• Solid foundations have a solid base that supports the mattress. Solid foundations are typically made of wood or metal.
• Hybrid foundations combine slats and a solid base. Hybrid foundations offer the support of a solid foundation with the breathability of a slatted foundation.

How do you choose the right Cal King Mattress Foundation?
When choosing a Cal King mattress foundation, there are a few factors you should consider:

• Your mattress size: Make sure the foundation is the same size as your mattress.
• Your budget: Foundations can range in price from a few hundred dollars to a few thousand dollars. Choose a foundation that fits your budget.
• Your personal preferences: Consider the style, material, and features of the foundation that you want.

Tips for buying a Cal King Mattress Foundation

• Shop around: Compare prices from different retailers before you buy.
• Read reviews: Read reviews of different foundations to see what other people have to say about them.
• Ask for help: If you’re not sure what to look for in a foundation, ask a salesperson for help.

A Cal King mattress foundation is an important part of your bed, so it’s important to choose one that’s right for you. By considering your needs and budget, you can find a foundation that will provide you with years of comfortable sleep.