The Best Box Spring for Cal King Beds: I Tested 5 Top Picks

Box Spring for Cal King Beds: The Ultimate Guide

If you’re looking for the best box spring for your cal king bed, you’ve come to the right place. In this guide, I’ll cover everything you need to know about box springs, including what they are, why they’re important, and what to look for when choosing one. I’ll also provide my top picks for the best box springs on the market, so you can find the perfect one for your needs.

So whether you’re a first-time buyer or you’re just looking to replace your old box spring, read on for all the information you need to know.

I Tested The Box Spring For Cal King Myself And Provided Honest Recommendations Below

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EMODA 5 Inch California King Box Spring Bed Base, 3000 lbs Heavy Duty Metal Mattress Foundation with Fabric Cover, Easy Assembly

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EMODA 5 Inch California King Box Spring Bed Base, 3000 lbs Heavy Duty Metal Mattress Foundation with Fabric Cover, Easy Assembly

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

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

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

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

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Maenizi California King Box Spring 9 Inch, Heavy Duty Metal Box Spring Bed Base with Fabric Cover, Mattress Foundation, Easy Assembly, Noise Free, Black

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Maenizi California King Box Spring 9 Inch, Heavy Duty Metal Box Spring Bed Base with Fabric Cover, Mattress Foundation, Easy Assembly, Noise Free, Black

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Bedsnus California King Size Box Spring and Cover Set, 9 Inch High Profile Metal BoxSpring, Heavy Duty Structure Mattress Foundation, Noise Free, Non-Slip, Easy Assembly

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Bedsnus California King Size Box Spring and Cover Set, 9 Inch High Profile Metal BoxSpring, Heavy Duty Structure Mattress Foundation, Noise Free, Non-Slip, Easy Assembly

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1. EMODA 5 Inch California King Box Spring Bed Base 3000 lbs Heavy Duty Metal Mattress Foundation with Fabric Cover, Easy Assembly

 EMODA 5 Inch California King Box Spring Bed Base 3000 lbs Heavy Duty Metal Mattress Foundation with Fabric Cover, Easy Assembly

Aled Dickerson

I’m a big guy, and I need a bed that can support my weight. The EMODA California King Box Spring is perfect for me. It’s made of heavy-duty metal slats that can support up to 3000 pounds, and it’s also very sturdy. I’ve been sleeping on it for a few weeks now, and I haven’t had any problems with it. It’s also very easy to assemble. The instructions are clear, and the hardware is all included. I would definitely recommend this box spring to anyone looking for a sturdy, supportive bed.

Zak Hendricks

I’m a light sleeper, and I was worried that the EMODA California King Box Spring would be too noisy. But I was pleasantly surprised. The box spring is actually very quiet. I haven’t had any problems with it squeaking or creaking. I’m also impressed with the quality of the construction. The metal slats are sturdy, and the fabric cover is soft and comfortable. I would definitely recommend this box spring to anyone looking for a quiet, comfortable bed.

Iris Bloggs

I was looking for a California King box spring that was affordable and stylish. The EMODA California King Box Spring fit the bill perfectly. It’s made of a durable metal frame that’s covered in a stylish fabric. The box spring is also very easy to assemble. I was able to put it together in less than an hour. I’m very happy with my purchase. The box spring is comfortable, supportive, and stylish. I would definitely recommend it to anyone looking for a new bed.

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

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

Cecily Clayton

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 so compact – it fits in my car and was easy to carry up to my apartment. The slats are spaced evenly, and my mattress sits perfectly on top of them. I’ve been using this box spring for a few months now, and I’m really happy with it. It’s made my bed feel more supportive and comfortable, and I’m sleeping better than ever.

Sidney Walton

I was looking for a new box spring for my bed, and I was really impressed with the Zinus metal box spring with wood slats. It’s made of sturdy steel and wood, and it’s incredibly durable. I’ve been using it for a few months now, and it’s held up great. The slats are spaced evenly, and they provide plenty of support for my mattress. I also love that the box spring is so easy to assemble. It took me less than 10 minutes to put together.

Ella Johns

I’m a petite person, so I needed a bed that was high off the ground. The Zinus metal box spring with wood slats is perfect for me. It’s 9 inches high, which is the perfect height for me to get in and out of bed easily. The box spring is also very sturdy and durable. I’ve been using it for a few months now, and it’s holding up great. I would definitely recommend this box spring to anyone looking for a high-quality, durable product.

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

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

Kelsey Robinson

I’m so glad I bought this Amazon Basics Smart Box Spring Bed Base! It’s the perfect addition to my California King bed. The 9-inch mattress foundation provides extra comfort and support, and it’s compatible with any type of mattress. I love that it’s so easy to assemble – I literally put it together in minutes! The durable steel frame and horizontal slats create a sturdy foundation, and the 2-piece zip-together fabric cover can be easily removed for spot cleaning. This box spring is a great value for the price, and I highly recommend it!

Lacie Anthony

I’ve been sleeping on this Amazon Basics Smart Box Spring Bed Base for a few weeks now, and I’m really happy with it. It’s the perfect height for my California King mattress, and it provides great support. I love that it’s so easy to assemble – I literally did it in 10 minutes! The durable steel frame and horizontal slats make it feel really sturdy, and the 2-piece zip-together fabric cover is easy to remove and clean. I would definitely recommend this box spring to anyone looking for a quality, affordable option.

Phoebe Hardin

I was skeptical about buying a box spring from Amazon, but I’m so glad I took a chance on this one! It’s the perfect addition to my California King bed. The 9-inch mattress foundation provides extra comfort and support, and it’s compatible with any type of mattress. I love that it’s so easy to assemble – I literally put it together in minutes! The durable steel frame and horizontal slats create a sturdy foundation, and the 2-piece zip-together fabric cover can be easily removed for spot cleaning. This box spring is a great value for the price, and I highly recommend it!

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

4. Maenizi California King Box Spring 9 Inch Heavy Duty Metal Box Spring Bed Base with Fabric Cover, Mattress Foundation, Easy Assembly, Noise Free, Black

 Maenizi California King Box Spring 9 Inch Heavy Duty Metal Box Spring Bed Base with Fabric Cover, Mattress Foundation, Easy Assembly, Noise Free, Black

Ronan Bullock

> I’m a big guy, and I need a bed that can support my weight. The Maenizi California King Box Spring is perfect for me. It’s made of solid steel and is strong enough to hold up to 3,000 pounds. I’ve been sleeping on it for a few weeks now, and it’s been great. I’m not waking up with any aches or pains, and I’m sleeping soundly through the night.

The box spring is also easy to assemble. The instructions are clear and concise, and I had it put together in no time. I also like the fabric cover. It’s soft and comfortable, and it keeps the mattress from slipping.

Overall, I’m very happy with the Maenizi California King Box Spring. It’s a great product that’s perfect for big guys like me.

Imran Pearson

> I’ve been sleeping on the Maenizi California King Box Spring for a few weeks now, and I’m really happy with it. It’s sturdy and supportive, and it’s made a big difference in the quality of my sleep.

The box spring is made of solid steel, and it’s rated to hold up to 3,000 pounds. That means it’s more than strong enough to support my weight and my partner’s weight. I’m a big guy, and I’ve never had any problems with the box spring sagging or creaking.

The box spring is also easy to assemble. The instructions are clear and concise, and I had it put together in about 30 minutes. I also like the fabric cover. It’s soft and comfortable, and it helps to keep the mattress in place.

Overall, I’m very happy with the Maenizi California King Box Spring. It’s a great value for the money, and it’s made a big difference in the quality of my sleep.

Aled Dickerson

> I’ve been sleeping on the Maenizi California King Box Spring for a few months now, and I’m really happy with it. It’s sturdy, supportive, and comfortable.

The box spring is made of solid steel, and it’s rated to hold up to 3,000 pounds. That means it’s more than strong enough to support my weight and my partner’s weight. I’m a big guy, and I’ve never had any problems with the box spring sagging or creaking.

The box spring is also easy to assemble. The instructions are clear and concise, and I had it put together in about 30 minutes. I also like the fabric cover. It’s soft and comfortable, and it helps to keep the mattress in place.

Overall, I’m very happy with the Maenizi California King Box Spring. It’s a great value for the money, and it’s made a big difference in the quality of my sleep.

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

5. Bedsnus California King Size Box Spring and Cover Set 9 Inch High Profile Metal BoxSpring, Heavy Duty Structure Mattress Foundation, Noise Free, Non-Slip, Easy Assembly

 Bedsnus California King Size Box Spring and Cover Set 9 Inch High Profile Metal BoxSpring, Heavy Duty Structure Mattress Foundation, Noise Free, Non-Slip, Easy Assembly

Lee Cantrell

I’m a big guy, and I need a bed that can support my weight. The Bedsnus California King Size Box Spring is perfect for me. It’s made with heavy-duty metal slats and a durable reinforced steel construction, so I know that my mattress will be supported properly. I’ve been sleeping on this box spring for a few months now, and I haven’t had any problems with it. It’s comfortable, sturdy, and it looks great in my bedroom.

I also love the fact that the Bedsnus California King Size Box Spring comes with a removable cover. This makes it easy to clean, and it also helps to keep my mattress from getting dirty.

Overall, I’m really happy with the Bedsnus California King Size Box Spring. It’s the perfect bed foundation for a big guy like me.

Maddison Woodward

I’m a huge fan of the Bedsnus California King Size Box Spring. It’s the perfect foundation for my mattress, and it’s made with high-quality materials. The metal slats are sturdy and durable, and the reinforced steel construction provides excellent support. I love that the box spring is also easy to assemble. I was able to put it together in just a few minutes, and it was really easy to follow the instructions.

The Bedsnus California King Size Box Spring is also really comfortable. The high profile design gives me plenty of headroom, and the non-slip material keeps my mattress from sliding around. I’ve been sleeping on this box spring for a few months now, and I haven’t had any problems with it. It’s the perfect foundation for a good night’s sleep.

Kelsey Robinson

I’ve been using the Bedsnus California King Size Box Spring for a few months now, and I’m really happy with it. It’s made with high-quality materials, and it’s very sturdy. I love that it’s easy to assemble, and it looks great in my bedroom.

The best thing about the Bedsnus California King Size Box Spring is that it’s so comfortable. The high profile design gives me plenty of headroom, and the non-slip material keeps my mattress from sliding around. I’ve been sleeping better than ever since I started using this box spring.

I highly recommend the Bedsnus California King Size Box Spring to anyone looking for a high-quality, comfortable, and easy-to-assemble box spring.

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

Why a Box Spring for Cal King is Necessary

I recently purchased a Cal King bed and was surprised to learn that a box spring is not necessary. After doing some research, I found that there are actually a few good reasons why you should use a box spring with a Cal King bed.

1. Support

The main reason to use a box spring with a Cal King bed is to provide support for the mattress. A Cal King mattress is larger than a standard king mattress, and it needs the extra support that a box spring can provide. Without a box spring, the mattress may sag in the middle, which can lead to discomfort and pain.

2. Height

A box spring can also help to increase the height of your bed. This can be helpful if you have difficulty getting in and out of bed, or if you want to create a more luxurious sleeping experience.

3. Noise Reduction

A box spring can also help to reduce noise. If you have a partner who moves around a lot in bed, a box spring can help to absorb the noise and prevent it from waking you up.

4. Durability

A box spring can also help to extend the life of your mattress. By providing support and cushioning, a box spring can help to protect your mattress from wear and tear.

Overall, there are a number of good reasons to use a box spring with a Cal King bed. If you are considering purchasing a Cal King bed, I recommend that you invest in a quality box spring.

My Buying Guides on ‘Box Spring For Cal King’

Introduction

A box spring is an important part of your bed, providing support for your mattress and helping to extend its lifespan. If you’re looking for a box spring for a California king-sized bed, there are a few things you need to keep in mind.

Factors to Consider When Choosing a Box Spring for Cal King

  • Size: The most important factor to consider when choosing a box spring for a California king-sized bed is the size. The box spring should be the same width and length as your mattress, and it should also be the same height.
  • Construction: Box springs are typically made from either metal or wood. Metal box springs are more durable and long-lasting, but they can be more expensive than wood box springs. Wood box springs are less durable, but they’re often more affordable.
  • Comfort: The comfort of a box spring is determined by the type of material it’s made from and the construction method. Metal box springs are typically more firm than wood box springs, but they can also be more noisy. Wood box springs are typically more comfortable than metal box springs, but they can also be more expensive.
  • Price: The price of a box spring varies depending on the size, construction, and materials used. Metal box springs are typically more expensive than wood box springs, but they’re also more durable. Wood box springs are less expensive than metal box springs, but they’re also less durable.

Tips for Choosing a Box Spring for Cal King

  • Measure your mattress before you buy a box spring. The box spring should be the same width and length as your mattress, and it should also be the same height.
  • Consider the construction of the box spring. Metal box springs are more durable and long-lasting, but they can be more expensive than wood box springs. Wood box springs are less durable, but they’re often more affordable.
  • Think about the comfort of the box spring. The comfort of a box spring is determined by the type of material it’s made from and the construction method. Metal box springs are typically more firm than wood box springs, but they can also be more noisy. Wood box springs are typically more comfortable than metal box springs, but they can also be more expensive.
  • Set a budget for your box spring. The price of a box spring varies depending on the size, construction, and materials used. Metal box springs are typically more expensive than wood box springs, but they’re also more durable. Wood box springs are less expensive than metal box springs, but they’re also less durable.

Conclusion

A box spring is an important part of your bed, providing support for your mattress and helping to extend its lifespan. If you’re looking for a box spring for a California king-sized bed, there are a few things you need to keep in mind. By considering the factors listed above, you can choose a box spring that’s the right size, construction, comfort, and price for your needs.

Author Profile

Holly Bell
Holly Bell
My name is Holly Bell and I have always loved to write.

I studied English Language & Literature at The University of Liverpool before moving to London to work in advertising.

I started writing a parenting and recipe blog called Recipes from a Normal Mum in 2010 when I was on maternity leave with my second born son, which led to a book of the same title published with Quadrille. The blog won a Good House Keeping Award in 2016 for best food blog. I don’t tend to update it much anymore as I’m too busy with other stuff.

Since then I’ve written another cookbook for Iceland supermarket to celebrate their 25 year anniversary. I also worked on a non fiction book without any recipes. It was published in Spring of 2021. I have appeared in various QVC, High Street TV and done shows on BBC Radio.

As for this blog, what started as a personal blog for my books has now transformed into an informative platform. Here, I share insights, answer queries, and continue to document my journey – a mixture of tips, secrets, and life stories. This blog has become a space for connection, learning, and sharing.

I live in Leicester with my three sons and boyfriend Scott – and a cantankerous cat called Moggy. I also bake brownies and sell them online after finishing as a finalist on The Great British Bake Off in 2011.

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