How to Convert a Full Size Bed to Queen

One of the more common bedroom updates is to convert a full size bed to a queen. This allows for more space and comfort, especially for couples or individuals who prefer more room while they sleep.

How to Convert a Full Size Bed to Queen

Converting a full-size bed to a queen can also be a cost-effective solution if you already have a full-size mattress but want to upgrade to a larger size without having to purchase a completely new bed frame and mattress.

Fortunately, converting a full size bed to queen can be done fairly easily with the right tools and knowledge. In this guide on how to convert a full size bed to queen, we will walk you through the steps of converting your full size bed to queen so you can enjoy a larger and more comfortable sleeping space.

Necessary Items

Before you begin the conversion process, make sure you have the necessary items to complete the task. Here are some things you will need:

  • Queen-size bed frame
  • Queen-size box spring and mattress
  • Measuring tape
  • Saw (if needed)
  • Drill or screwdriver
  • Screws and bolts (if not included with bed frame)

8 Things to Know Before You Start

1) Measure the Space

Take measurements of your bedroom to make sure a queen-sized bed will fit in the space. A queen-size mattress is typically 60 inches wide by 80 inches long, so make sure you have enough room for the additional width and length.

2) Consider the Bed Frame Design

Purchasing a Queen-size Bed Frame

When purchasing a queen-size bed frame, consider the design and how it will fit in your bedroom. Some bed frames may have headboards and footboards that may need to align with your current decorations or wall space.

3) Check the Height

Make sure to check the height of the bed frame, as some queen-size frames can be taller than full-size frames. This could cause issues if you have low ceilings or a small bedroom space.

4) Be Mindful of Your Budget

Converting a full-size bed to a queen-size bed can be a cost-effective solution, but make sure to consider your budget when purchasing a new bed frame and mattress. You may also need to factor in the cost of any additional tools or supplies needed for the conversion process.

5) Consider Storage Options

If you are upgrading to a queen-size bed, consider storage options such as under-bed storage drawers or a bed frame with built-in storage. This can help maximize space in your bedroom and make the most out of your new bed.

6) Look for Sales and Deals

Keep an eye out for sales and deals when purchasing a new bed frame and mattress. You can find a great deal on a queen-size bed that fits within your budget. And remember to also check for any additional discounts or coupons that may be available.

7) Use Quality Materials

Use Quality Materials During the Conversion

To ensure the longevity and durability of your new bed, make sure to use quality materials during the conversion process. This includes screws, bolts, and other hardware needed to secure the frame and mattress.

8) Consider Professional Installation

If you are not comfortable with DIY projects or need the necessary tools, consider hiring a professional to assist with the conversion process. This will ensure that your new queen-size bed is installed correctly and safely.

Once you have all the necessary items and information, you can begin converting your full size bed to queen!

12 Steps on How to Convert a Full Size Bed to Queen

Step 1: Measure Your Full-Size Bed

The first step is to measure the dimensions of your full-size bed, including the length, width, and height. This will help you determine if a queen size bed will fit in the space. While full-size mattresses are typically 54 inches wide by 75 inches long, it is always best to double-check your specific measurements.

Step 2: Purchase a Queen Size Bed Frame

Purchase a queen-size bed frame that fits within your budget and meets your style preferences. Make sure to also consider the height of the frame and how it will fit in your bedroom space. But don’t worry if the frame is too tall, as you can always adjust the height during installation.

Step 3: Remove the Mattress and Box Spring

Remove the mattress and box spring from your full-size bed frame. Make sure to clear out any other items that may be stored under the bed. However, if you are planning on using the same box spring for your queen-size bed, make sure to measure it and ensure it is compatible with the new frame.

Step 4: Disassemble the Full Size Bed Frame

Disassemble the Full-size Bed Frame

Using a drill or screwdriver, disassemble the full-size bed frame. Make sure to keep all screws and bolts in a safe place so they can be reused for the queen-size bed frame.

Step 5: Measure and Cut the Side Rails

Measure and cut the side rails of the full-size bed frame to fit a queen-size mattress. Depending on the design of your current frame, you may need to adjust these measurements accordingly. Use a saw if needed to trim down the rails.

Step 6: Attach the Side Rails to the Headboard and Footboard

Using the previously removed screws and bolts, attach the side rails to the headboard and footboard of your new queen-size bed frame. Then, secure the rails to the frame using additional screws if needed.

Step 7: Add Extra Support

For added support and stability, consider adding extra slats or a center support beam to your new queen-size bed frame. This will help evenly distribute weight and prevent sagging over time. So, make sure to add these supports before placing the box spring and mattress on top.

Step 8: Place the Box Spring on the Top

Once all supports are in place, carefully place your queen-size box spring on top of the bed frame. Make sure it is centered and secure. If you are using the same box spring from your full-size bed, it should fit comfortably on the new frame.

Step 9: Put the Mattress in Place

Gently place your queen-size mattress on top of the box spring. Make sure to center and adjust as needed. For added comfort, you may also want to consider using a mattress pad or topper. As an extra precaution, you can secure the mattress to the frame using straps or clips.

Step 10: Adjust the Height

If your new queen-size bed frame is too tall for your liking, consider adjusting the height by removing or adding slats. This will allow you to customize the height of your bed according to your preferences and needs.

Step 11: Reassemble Any Additional Pieces

Reattach Them to the New Queen-size

If your full-size bed had any additional pieces, such as a headboard or footboard, you can now reattach them to the new queen-size frame. Make sure to use the appropriate screws and bolts for a secure fit.

Step 12: Enjoy Your New Queen Size Bed!

Congratulations, you have successfully converted your full size bed into a queen-size bed! Now, you can enjoy the extra space and comfort of your new bed. Make sure to add any finishing touches, such as linens and pillows, to complete the look and feel of your upgraded sleeping space. 

Keep in mind that converting a full size bed to queen is a simple process, but if at any point you feel unsure or uncomfortable with completing the conversion on your own, it is always best to seek professional assistance. Sweet dreams! 

So, be sure to follow these steps on how to convert a full size bed to queen and enjoy a comfortable and spacious queen-size bed in your home. 

8 Things to Avoid While Converting a Full Size Bed to Queen

1) Using Incorrect Measurements

Before purchasing any materials or starting the conversion process, make sure to accurately measure your full-size bed and queen-size mattress to ensure compatibility. If the measurements are off, it can lead to an unstable and unsafe bed frame.

2) Not Considering the Height

When purchasing a queen-size bed frame, make sure to consider the height of your mattress and box spring. If the frame is too tall, it may be easier to get in and out of bed comfortably. Consider adjusting the height if needed during installation.

3) Forgetting Additional Supports

Adding extra slats or a center support beam is essential for stability and preventing sagging over time. Skipping this step can lead to discomfort and potential damage to your mattress and frame. And adding these supports after the fact can be difficult.

4) Not Keeping Track of Screws and Bolts

Keep Track of All Screws and Bolts

During disassembly, make sure to keep track of all screws and bolts. Losing or misplacing them can delay the conversion process or even lead to a less secure bed frame. But don’t worry; you can always purchase replacements if needed.

5) Using the Wrong Tools

Make sure to use appropriate tools, such as a drill or screwdriver, during the conversion process. Using incorrect tools can lead to damage and difficulty in completing the conversion. So, double-check before starting.

6) Not Adjusting Measurements as Needed

Depending on the design of your current bed frame, you may need to adjust measurements accordingly. For example, if your full-size bed has a headboard or footboard, make sure to consider their dimensions when cutting and attaching side rails for the queen-size frame.

7) Rushing the Process

Converting a full-size bed to a queen-size bed takes time and precision. Rushing through the process can lead to mistakes and an unstable bed frame. Take your time and double-check measurements and steps along the way.

8) Not Seeking Professional Assistance When Needed

If at any point during the conversion process, you feel uncomfortable or unsure, it is always best to seek professional assistance. This will ensure the safety and stability of your bed frame, as well as save you from potential injuries. 

So, don’t hesitate to call in a professional if needed. Your safety is a top priority!  Avoiding these common mistakes can help make the conversion process smoother and more successful.

By following these tips, you can transform your full-size bed into a comfortable and spacious queen-size bed without any major issues. Enjoy your new sleeping space!  So, go ahead and put these tips into practice to ensure a successful conversion process. And remember to enjoy the extra space and comfort of your new queen-size bed! 

8 Additional Tips for Maintaining Your Queen Size Bed

1) Rotate and Flip the Mattress Regularly

Prolong Your Mattress's Lifespan

To ensure even wear and prolong your mattress’s lifespan, rotate and flip it regularly. This will prevent sagging and indentations. As a general rule, aim to rotate and flip every 3-6 months. So, make a note in your calendar to help you remember.

2) Use a Mattress Protector

Investing in a good-quality mattress protector can help protect your mattress from spills, stains, and dust mites. This will not only keep your bed clean and hygienic but also extend its lifespan. While a mattress pad or topper can also add extra comfort, a protector is essential for maintaining its condition.

3) Wash Bed Linens Regularly

Washing your bed linens regularly not only keeps them clean and fresh but also helps maintain the cleanliness of your mattress. Make sure to follow the manufacturer’s instructions for washing and drying to avoid potential damage.

4) Vacuum and Air Out Mattress

Every time you rotate and flip your mattress, take some time to vacuum it. This will help remove any dust or debris that may have accumulated. Additionally, occasionally airing out your mattress by leaving it outside on a sunny day can help eliminate odors and keep it fresh.

5) Avoid Jumping on Bed

While it may be tempting, jumping on your bed can cause damage to the frame and mattress. It puts unnecessary stress on the materials and can lead to sagging and other issues. Even if your bed frame is sturdy, it’s best to avoid this habit.

6) Tighten Screws and Bolts Regularly

As with any furniture, the screws and bolts on your bed frame can loosen over time. Make sure to check and tighten them regularly to maintain stability. This will also help prevent any potential noise or squeaking.

7) Don’t Overload Your Bed

Weight Limit for Your Particular Bed Frame

Avoid placing heavy items or too many people on your bed. This can put excessive strain on the frame and cause damage over time. So, be mindful of the weight limit for your particular bed frame. For example, a queen-size bed frame may have a weight limit of around 600 pounds.

8) Check for Any Damage and Address it Promptly

Regularly check your bed frame and mattress for any signs of damage. This can include cracks, squeaking noises, or sagging. If you notice any issues, address them promptly to prevent further damage and ensure the safety of your bed. If necessary, seek professional assistance for repairs or replacements.

By following these tips on how to convert a full size bed to queen, you can maintain the quality and comfort of your queen-size bed for years to come. So, remember to take care of your bed, and it will take care of you in return. 

With proper maintenance, you can enjoy a comfortable and reliable sleep each and every night on your converted queen-size bed. Sweet dreams!  So, don’t hesitate to put these tips into practice and enjoy the full benefits of your new queen-size bed conversion. 

Frequently Asked Questions

Can I Convert Any Full-size Bed to a Queen-size Bed?

In most cases, yes. However, it is important to consider the design and stability of the bed frame before attempting to convert it. Seek professional assistance if you need more clarification. 

Will Converting My Bed Affect the Mattress?

It should only affect the mattress if it is properly supported by the converted frame. However, if your mattress is nearing its lifespan, replace it when converting for optimal comfort and support. 

How Can I Tell If My Bed Frame is Sturdy Enough for Conversion?

Look for any cracks, damage, or weakness in the frame. A sturdy bed frame should be able to support a larger mattress without issue. It may also be helpful to consult with a professional before attempting conversion.  So, make sure your bed frame is in good condition and can handle the additional weight and size of a queen mattress. 

With proper precautions and attention to detail, you can successfully convert your full size bed to a queen-size for a comfortable and spacious sleeping experience.

Can I Convert a Queen-size Bed to a Full-size Bed?

While technically possible, it is not recommended as it can compromise the stability and safety of the bed frame. It’s always best to use a bed frame specifically designed for the desired mattress size.  So, stick with converting full-size beds to queen-size for optimal results.


Converting a full-size bed to a queen-size bed can provide you with extra space and comfort without having to purchase a new bed frame. By avoiding common mistakes, taking your time, and seeking professional assistance when needed, you can successfully convert your bed and enjoy the benefits of a queen-sized sleeping space.

Remember to also follow maintenance tips on how to convert a full size bed to queen to keep your converted bed in top condition for years to come. Sweet dreams on your new queen-size bed!

Photo of author

Adrian Green

Adrian is a woodworking hobbyist and has loved Woodworking since he was 10 years old. Back then in childhood, his father used to have a furniture shop. He used to help his dad and learned a lot from him about how to fix woodworking furniture, basic carpentry knowledge and also about how to work hard and take care of business. He enjoys woodworking as a hobby. He loves the feeling of creating something with his own hands, and the satisfaction that comes from seeing his finished products used by others.

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