Bedroom
Published February 15, 2022
12 minWhat Is a Bunkie Board? - An Ultimate Guide
Most of us are familiar with mattress foundations like box springs, slatted frames, and other bed frames that support our mattresses. But what is a bunkie board?

Table of contents
What Is a Bunkie Board?A Brief History of Bunkie BoardBunkie Board Size ChartHow Does a Bunkie Board Work?Pros and Cons of a Bunkie BoardDo I Need a Bunkie Board?Bunkie Board vs Box SpringBunkie Board vs PlywoodBunkie Board vs Bed SlatsHow to Choose a Bunkie Board?How to Make a Bunkie Board?Does My Mattress Need a Bunkie Board?Frequently Asked Questions
Most of us are familiar with mattress foundations like box springs , slatted frames, and other bed frames that support our mattresses. But what is a bunkie board?Below we’ll explain what a bunkie board used for and how it compares to its alternatives to help you make an informed decision.
What Is a Bunkie Board?
A bunkie board (also spelled bunky board) is a flat board often made of particleboard, plywood, or any other composite material; designed to fit between a mattress and a bed frame. Bunkie boards are one to three inches thick and are cut to match a particular mattress size. They are usually covered in fabric that protects the mattress base from getting stuck and tearing. A bunkie board works with several bed boards, including a box spring, box foundation, slatted foundation, metal frame, and solid platform bed.A Brief History of Bunkie Board
In the earlier 20th century, bunkie boards provided a base for bunk bed mattresses, hence the name bunkie boards. However, traditional innerspring mattresses required a box spring for support, and although box springs were a decent fit for other beds, they could not provide a solution for bunk beds.With a mattress and box spring, sleepers on bunk beds would either hit the ceiling or the bed over them when they sat up. It led to the birth of bunkie boards. These boards substituted the box spring so bunk bed mattresses could remain low.They offer a low-profile and space-saving way to support your mattress. Bunkie beds also come in decorative options to match the look and style of your bed frame.Bunkie boards have come a long way since they were first created. Today's bunkie boards are crafted in various lengths, widths, and thicknesses. Bunkie boards are not just for bunk beds. They come in all standard bed sizes as given below.Bunkie Board Size Chart
| Size | Dimensions |
|---|---|
| Twin | 38 inches x 75 inches |
| Twin XL | 38 inches x 80 inches |
| Full (Double) | 54 inches x 75 inches |
| Queen | 60 inches x 80 inches |
| King | 75 inches x 80 inches |
| California King | 72 inches x 84 inches |
How Does a Bunkie Board Work?
A bunkie board is placed between the bed frame and the mattress and functions as a box spring without the added height. A bunkie board is a comfortable solution that provides a thinner but solid surface that prevents mattresses from sinking and increases the lifespan of your mattress.Experts recommend bunkie boards for foam mattresses like polyfoam, memory foam , latex foam, and hybrid mattresses. A bunkie board may not last as long as your mattress. But, considering its average price point, which is about $50 to $150, even a few years of use would be worth investing in one.Pros and Cons of a Bunkie Board
Before buying bunkie boards, you must know their pros and cons. The pros include:- Support for the Mattress
- Low Profile
- Light Weight
- Versatile
The cons include:
- Warping
- Trapping Heat
Do I Need a Bunkie Board?
Whether you need to buy a bunkie board for your mattress or not depends on the types of bed frames you want to put the board on and the type of foundation your bed has.Solid Foundation
A bed with an already solid foundation does not need a bunkie board for mattress support. However, you can add the board if you want to increase the height of the bed.Slatted Foundation
If your bed has a slatted foundation, you must use a bunkie board to provide support to the mattress that slats can’t offer.Adjustable Bed Foundation
You cannot use a bunkie board with an adjustable bed . A bunkie board is a solid piece of wood and does not bend like an adjustable bed.But, a bunkie board isn’t the only thing that provides support to a mattress. Following are the alternative to bunkie board and how they compare to it:Bunkie Board vs Box Spring
A box spring contains spring coils that work together to maintain weight and pressure distribution. Modern box springs consist of a wooden or metallic case with a cloth cover. Therefore, they do not provide the strong base and stability required by foam mattresses.If you want to continue using your old box spring, you can place a bunkie board on top of it to create a solid base for the mattress. However, you need to check the mattress warranty before doing so, as some manufacturers restrict you from doing so. You might also need to check if your old box spring can withstand the weight of your new foam mattress.Bunkie Board vs Plywood
You can place a solid piece of plywood below your mattress if you want a DIY bunkie board. The thickness of the plywood should be at least 3/4 of an inch and should be a perfect fit for your bed. The mattress and frame size should be exact; otherwise, they won’t fit well. You can also place the plywood above your old box spring to protect your foam mattress.Plywood has a tendency to chip and snag, which can damage your mattress cover and even your sheets. On the other hand, a bunkie board will last longer and prevent damage better than a sheet of plywood. Also, right size bunkie boards are readily available in the markeBunkie Board vs Bed Slats
It is tough to place latex mattresses on slat bases that are 2 inches apart. Also, the bed slats should not be more than 3 inches apart for memory foam mattresses. Most Modern bed frames have a slatted base foundation which does not work well for memory foam or latex mattresses that need a solid base.If you do not want to take a chance damaging your expensive mattress, you should simply opt for a bunkie board.As you can see, in all three comparisons, bunkie board vs box spring, bunkie board vs plywood, and bunkie board vs slats, bunkie board seems like a better choice.How to Choose a Bunkie Board?
Once you decide that a bunkie board is the perfect bed support for your mattress, it’s time to buy one. Here are a few factors you should keep in mind when choosing a bunkie board.- Budget
- Weight Capacity
- Brand
- Online/Offline
- Aesthetics
