Materials 101: What Is HDF-HMR? How Good Is It?

Last updated on September 16th, 2022

Despite your best efforts, dampness and musty odors can invade your house, especially in spaces like the kitchen or bathroom. Wood, in particular, is susceptible to this. This is why high-density fiberboard (HDF) is a premium choice in many households. HDF is a solid wood product made by laminating two or more layers of veneer.

It’s often used in furniture because it is strong, lightweight, and has a good finish. In this article, we’re going to take a look at what HDF is, how it is different from other types of wood products, and how it can be used in construction.

What is HDF-HMR?

While HDF stands for high-density fiberboard (HDF), HMR stands for high-moisture resistance. HDF is a relatively new product category that combines the strength and stiffness of wood with the moisture and decay resistance of fiberboard. HDF-HMR further enhances the material’s moisture and decay resistance.

It also has a much higher strength-to-weight ratio than traditional wood products. Additionally, as HDF-HMR is made from compressed fiber bundles, it is much more resistant to moisture and decay than traditional fiberboard. Overall, HDF-HMR is a promising product category that offers several advantages over conventional wood products.

The Benefits of HDF-HMR

HDF is a strong, lightweight, and resilient construction material. Being a new, revolutionary material in the market, here are the benefits of using this board:

  • It is strong and can support a lot of weight.

  • It is lightweight and easy to transport.

  • It is resistant to moisture and pests. This makes it a good choice for building materials, furniture, and other items that need to be resistant to these elements.

  • It is environmentally friendly, meaning it does not produce harmful chemicals when used in construction or furniture manufacturing.

What Are the Different Types of High-density Fiberboard?

There are three main categories of high-density fiberboard:

1. High-moisture resistant (HMR) boards: These boards can handle a lot of moisture without deteriorating.

2. High-humidity resistant (HHR) boards: These boards are resistant to humid conditions.

3. Low-moisture resistant (LMR) boards: These boards can only handle limited amounts of moisture.

How to Calculate HDF-HMR rating?

To calculate the HDF-HMR rating, you first need to determine the actual density of the lumber. To do this, measure the weight of a standard 2×4 inch piece of lumber and divide that number by the average density of regular lumber (around 4.5 pounds per cubic foot/72.1 kilograms per cubic meter). Next, multiply that number by 100 to get the HDF-HMR rating in pounds per cubic foot.

When calculating moisture resistance, you also need to consider both the actual weight of water that can be absorbed and also how long the material will last before it starts to rot. To do this, pour water into a bowl until it reaches shoulder height and then submerge the material completely.

How is High-density Fiberboard Used?

HDF is a type of board made from a composite of wood fibers and plastic strands. It has several advantageous characteristics over traditional wood boards. For one, HDF is highly resistant to moisture damage. This makes it an ideal material for use in applications susceptible to water infiltration, such as damp basements or crawl spaces. In addition, HDF is lightweight and easy to work with, making it a popular choice for wallboard, cabinets, miscellaneous furniture, and other paneling products. The material can be used in ceilings and flooring.


Overall, it is evident that HDF-HMR is a good choice for projects where moisture and decay are major issues. It is also a very cost-effective option, which makes it an attractive choice for projects where budget is an important factor. Instead of using traditional wood that is prone to rot, this material can keep your furniture, paneling, and other repairs safe from water damage.

Visit to learn more about quality alternatives for wood that you can incorporate into your kitchen, living room, bedroom, and other spaces. You can also explore our massive repository of blogs on diverse topics ranging from feng shui, home cleaning, and repair to the latest interior decor trends in the market.