Can a King Bed Frame Fit a Queen Mattress?

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Have a queen-size mattress and a king-size bed frame? And now you are all confused with the question – Can a king bed frame fit a queen Mattress?

Otherwise, you will have to change or purchase a whole new bed frame.

Seems like quite a struggle! Well, there is some good news for you. You can turn your queen-sized mattress into a king-sized bed by following some easy steps.

All you have to know is the trick behind it. In the following discussion, we will talk about the steps in detail. So, you can follow them accordingly and enjoy the bed without any more hassles.

But, before that, let’s know does the bed frame size matter:

Does the Mattress and Bed Frame Size Matter?

Of course, it matters with bed frames and mattresses. You cannot use a bed frame to hold a mattress bigger than its capacity.

Didn’t get the point? Well, let’s elaborate it a bit for your better understanding:

A full-sized bed frame is typically designed to hold up a mattress that is 54” by 75” in size. While, a queen-sized bed frame can ideally accommodate a mattress measuring 60” by 80”. 

Although the differences in size may seem only a few inches apart, it really matters. 


This is because a queen headboard and frame can extend 6 inches past the edge of a full-size mattress. Therefore, your mattress will have 3 inches of extra space to spare on each side.

However, the good news is you can still use the queen mattress on the full-size frame using some creativity and tips.

Such as if you make bedding by pairing it up with pillows, comforters, bed skirts, sheets, and possibly a few blankets. As it will look completely normal now for comfort, you may require to make some adjustments, based on your comfort level.

But then again, it all depends on a person’s comfortability, which varies from individual to individual.

Therefore, the moral of the story is size does matter in terms of mattresses and bed frames. After all, nothing can beat the exact support and coziness that a perfect size bed frame and mattress can offer.

How to Use a Queen Mattress on a King Bed Frame? [3 Easy Steps to take]

A king-size bed frame can comfortably accommodate a mattress ranging from 76’’ wide and 80’’ long. On the other hand, a queen mattress is only about 60’’ wider with being 80 inches long in length.

Therefore, as the frame is larger, it can easily hold the queen mattress. But the problem is some of the frames will stick out.

So, how to make things work out and use a queen mattress on king bed frames? Here’s to how:

Step 1: Take the measurement

Your first job is to take the measurement of the king-size bed frame. Although they are available in a certain range, you must still do it. As a result, there will be no risk of any imperfection. 

Most of the bed frame comprises of a metal frame for supporting the mattresses. There should be about 1-2 inches of aluminum from that edging area to cover the box spring. Calculate and note down them precisely for the later steps.

Step 2: Buy planks of wood

Next up, you will have to buy wood planks to fill the bed frame. Otherwise, the space will be visible, and people will be able to look at the pieces through the sides.

Make sure to go for the sturdy and thick ones so you can piece the mattress-covered portions together in the center. The ideal range of wood to pick is 80 inches long (can vary depending on the demands). If required, you can add numerous pieces together to fill up the bed frame.

Step 3: Keep the mattress in the center

As the bed frame is bigger in size than the mattress, always position the queen mattress in the middle. The right positioning is very important, as whether the setup will be perfect or not will directly depend on this placement.

Afterward, cut the wood slats (recommended: 8 inches) equal to the approximate length, and attach them on both sides of the mattresses with the help of screws and nails. No need for the box spring.

To Wrap Up

Hopefully, you have no more queries regarding “can a king bed frame fit a queen mattress?

They come in different sizes, especially the 16 inches wider variation on both sides. Thus, if you want to fit a queen mattress in a king bed frame, just follow the above-mentioned steps as instructed, and you will be all good to use it.


Still, have any confusion regarding your king bed frame and queen mattress? Take a look at the below-mentioned queries to clarify them right away:

Can a queen bed fit in a king frame?

Of course, you can turn a queen bed into a king bed frame. However, as the queen bed is not as wider as the king bed, you will have to make some adjustments to fix the issue. Such as, if it is modular or wooden, you can solve this by attaching some wood to the bed frame using nails and screws.

Can a mattress be bigger than the frame?

They can be the same, or the bed frame can be larger than the mattress. Otherwise, the bed will be imbalanced and weird. It works best if the bed frame is a few centimeters or inches larger than the mattress. Therefore, make sure to get a mattress that is the same size or smaller.

How much bigger is a king frame than a queen?

The dimensions of a queen are 60 inches wide by 80 inches long. On the other hand, a king bed frame is 76 inches wide. Meaning, the surface area of a king bed is 1280 square inches which are about 16 inches wider than the queen bed frame.