Can You Put A Full-Size Mattress On A Queen Frame?

Full-Size Mattress On A Queen Frame

Last Updated on July 25, 2023 By Emma W. Thomas

No, you cannot put a full-size mattress on a queen frame. Full-size mattresses are smaller than queen frames, leading to misalignment and instability. It is essential to use a mattress that matches the frame size to ensure proper support and fit. Always use the correct size mattress for your bed frame.

How To Make Your Queen Frame Fit A Full-Sized Mattress

Queen Frame Fit A Full-Sized Mattress

You can explore the following options, which will help to use a full-sized mattress on a queen frame;

Adjusting The Frame

If your bed frame is metallic, you can easily adjust it to fit your full-size mattress. Follow these simple steps;

  • Check whether your frame has four metal bars that make a rectangle or two mattress support bars. 
  • Look for extra holes on the headboard or footboard for adjusting the frame. 
  • If these features are there, move the support bars inwards 3 inches on each side. Bring the footboard closer to the headboard, about 5 inches. Doing this helps the frame to accommodate the full-sized mattress well. 

If your frame has no built-in holes for adjustments, you can follow these steps;

  • Remove the screws on the existing support bars. Measure 3 inches from where the screws were attached and make a mark. 
  • Buy new, shorter support bars (ensure that they are 5-inches shorter in length)
  • Drill new holes that are the same size as the ones already there
  • Join the new support bars to the footboard and headboard using the right tools

Using Brackets On A New Bed Frame

If you find it challenging to adjust a bed frame, you can purchase a full-size platform bed frame with no headboard. Here’s how to go about this;

  • Get a frame that will match your headboard both in color and material. You may also plan to use your bedding to cover it. 
  • Fix the headboard brackets to the frame 
  • Assemble the queen headboard onto the new brackets, then place the mattress on it.

Are Both Queen And Full Bed Frames The Same?

Are Both Queen And Full Bed Frames The Same

A full-sized bed (also known as a double or full bed) measures 54 inches (137cm) in width and 75 inches (191 cm) in length. It is smaller than a queen-sized bed whose dimensions are 60 inches (152cm) wide and 80 inches (203cm) long. The following table shows the comparisons between the two frames.

Queen Bed Full Bed
Dimensions                                        60 X 80 inches (152cm by 203cm) W x L54 X 75 inches (137cm by 191cm) W x L


Less expensive than king beds but costly than full or twin beds

Frames, sheets, and mattresses are less expensive than queen size but cost slightly more than twin beds. 


It has a normal rectangular structure and a center leg.

It is just a rectangular box.


Suitable for small master bedrooms and guest rooms 

Ideal for single persons and smaller couples. It can be perfect in a teenager’s room. 

How popular
Makes 32 percent of all purchases of mattressIt makes 21 percent of all mattress purchases. 


Perfect for two or tall people

Ideal for a single person less than 5-feet, 9-inches tall


Available space for a couple could be insufficient (30-inches each) hence not comfortable.

It can be too narrow and short for a couple. Lack of different styles of comforter bedding

Can You Put A Queen Mattress On A Full-Size Box Spring?

Yes. A queen box spring can accommodate a full-sized mattress, but there is a need to check the dimensions for both. It is also necessary to check the kind of frame of the box spring since some allow you to easily make adjustments to the box springs to fit the mattress’s dimensions. 

Full and queen mattresses have a difference of 6 inches in width, and you can use them if you are comfortable. If your box spring also has a metal frame that can be adjusted, then you can adjust it to match your queen-sized bed. An overhung mattress is not only uncomfortable, but it also lacks proper support and hence wears out easily. 

How To Ensure That Your Queen-Sized Mattress Fits Onto A Full-Sized Box Spring

You can do the following to make sure that the full-sized box spring supports your queen-sized bed;

Consider Your Box Spring Type.

Box springs generally come in two types, i.e., standard box springs (common in the market) and split box springs. 

Split Box Spring

This kind of box spring can be split into two portions to fit narrow spaces and hallways. A split box spring is ideal for a queen-sized bed, but it needs support in the middle, but you need to be certain that your bed frame can have this. 

Standard Box Spring

This type of box spring comes as a whole piece, and it is not adjustable. This piece has a metallic frame that prevents your queen mattress from sinking in the middle. 

Use Boards

The use of boards is a cheaper method to help utilize your full-sized box spring. Get two medium-density fiberboards (MDF) whose thickness is 5-8 inches. You can request that they are cut to size at the store where you buy them. Place the box spring between the boards (one at the top and the other one under). Doing this gives your mattress the stability it requires. 

Using Bed Frames

You may also use bed frames to give your mattress some added support on a full-sized spring box. Ensure that the bed frame has enough depth to accommodate the spring box and use it to extend the box spring’s size. Doing this helps to avoid or lessen the 3-inches overhang. Be sure to also avoid metallic bed frames, as using them will lead to deformities on your box spring. 

Convert The Box Spring To A Platform Bed

You can also change your box spring to a platform bed. Doing this gives your mattress the solid foundation it needs and helps you reuse an old full-sized box spring. 

Are A Full Bed And A Double Bed The Same?

While shopping for a new bed, individuals are often confronted with various terms and sizes, resulting in ample confusion. Two of these common terms are “full bed” and “double bed.” But are they the same? This listicle attempts to demystify this confusion. 

1. Origin

  • The first aspect to understand about full and double beds is their origin.
  • Full beds emerged in the 1870s, while double beds appeared later.

2. Dimensions

  • The primary factor that confirms whether a full bed and a double bed are the same is their size.
  • Both a full bed and a double bed measures approximately 54 inches in width by 75 inches in length.

3. Suitability

  • Both full and double beds are ideally suitable for a single sleeper because they provide ample space for one person.
  • However, they can also be used by two people who don’t require much sleeping space.

4. Mattress Availability

  • Both beds have the same size of mattresses available in the market easily.
  • There is no difference in the size or type of mattresses one can buy for these beds.

5. Bedding and accessories

  • Bed sheets and comforters that fit one will also fit the other, as they’re the same size.

6. Space considerations

  • Full and double beds require the same amount of space in the room, making them a good fit for smaller rooms or guest rooms.
Full BedDouble Bed
Dimensions54″W x 75″L54″W x 75″L
SuitabilitySingle sleeper/two people who don’t require much spaceSingle sleeper/two people who don’t require much space
Mattress AvailabilityEasily availableEasily available
Bedding and AccessoriesFit the same ones as the double bedFit the same ones as the full bed
Space ConsiderationIdeal for smaller rooms or guest roomsIdeal for smaller rooms or guest rooms


A full-size mattress can be used on a queen bed frame, but there is a need for some adjustments to leave a gap on both sides. If you are not comfortable with spaces, you can make adjustments to the frame or use brackets but make sure the mattress is as comfortable as possible. 

It is also possible to use a queen mattress on a full-size box spring. To do this, be sure to use the right box spring, use boards, or bed frames.