what is compressed wood
|

What Is Compressed Wood? (Types, Uses, Pros, & Cons)

Practically everyone has some furniture made from compressed wood, as it is very common in shelving, desks, and bed frames.

If you’ve ever bought furniture from a certain popular Swedish store known for products you have to assemble yourself, then you certainly have experienced compressed wood.

Its lightweight and affordability make it a smart choice both for people furnishing a home for the first time and for those looking to replace old, worn-out furniture.

But what exactly is compressed wood? Compressed wood is an engineered, man-made wood product made of wood fibers, sawdust, wood particles, wood shavings, and a veneer facade. It has many common applications, notably furniture, cabinetry, and trim work. Its many distinct advantages over natural wood make compressed wood ideal for many applications.

compressed wood

Though the use of layers of veneer has been around since ancient times, the first modern compressed wood was invented in Germany in 1887.

It became common after World War II and spread worldwide due to its affordability and mass production.

Initial versions were made simply from swept-up wood shavings mixed with glue, though, over time, the process has become more sophisticated to produce a more uniform, sturdier product. 

These days, compressed wood is usually made from wood chips, shavings, sawdust, or fibers, which are mixed with synthetic resin and compressed under heat.

It is important to understand the process of making compressed wood and how it differs from other types of engineered wood, as well as possible drawbacks, before choosing it for your project.

Types Of Compressed Wood

There are several types of compressed wood, such as particleboard, medium-density fiberboard, and high-density fiberboard. It is important to understand each before you choose one for your building project.

Particle Board

One of the most common is particle board, which is the most cost-effective form of compressed wood because it is made from small pieces of waste left behind from other wood production. It can also be milled from larger pieces of wood and sorted so that larger pieces are left out, making a more uniform end product. The small pieces are combined with resin and formed into a sheet, which is compressed multiple times under cold and heat before being cooled, sanded, and trimmed. Sometimes, a veneer or laminate surface may be added (“Particle Board,” n.d.).

Uses

Particleboard is lightweight and easy to cut during the manufacturing process. This makes it ideal for furniture and some types of cabinetry since it holds screws better than many comparable products.

Since particleboard is initially produced in large sheets, it is easier to trim to specific sizes than natural wood, especially when mass-producing an item. Because it is uniform, it also reduces the need to check for flaws that would appear in natural wood.

Particleboard is also used in construction, though you must be careful where you use it due to its limitations. It can be used as wall partitions if the walls are not load-bearing. It is a good insulator both in terms of temperature and sound, so you’ll find it used for false ceilings in air-conditioned rooms, as well as throughout auditoriums, movie theaters, and recording studios. It is also used as the core material of many types of doors (“7 Uses of Particle Board in Building Industry,” n.d.).

Medium-Density Fiberboard

Medium-density fiberboard (MDF) is similar to particle board but is much denser and more durable. Hardwood and softwood are broken down into fibers in a defibrillator machine.

The resulting fibers, which are much smaller than the pieces used in particleboard, are pressed into a sheet with wax and bonding resin. Then, the sheet is heated briefly to activate the resin, producing a solid sheet of manufactured wood.

Uses

The increased density and durability come from using fibers instead of chips, shavings, and sawdust. Due to this higher durability, MDF has many applications in building. Its interior is more uniform than particleboard, and it is free from knots and grain. It is often used in the same manner as plywood, such as in flooring substrate, with a veneer or laminate placed on top. It is also perfect for molding and trim work. However, MDF is susceptible to swelling if it gets wet, so it’s not recommended for outdoor projects, like a deck, for example (“Medium Density Fibreboard,” n.d.).

Much like particleboard, MDF is a great insulator for sound. Therefore, it is commonly used to build speaker boxes for high-end audio applications. The fiberboard exterior allows the sound to come from the speaker itself rather than rattling through the wood.

High-Density Fiberboard

Moving even further along in density is High-Density Fiberboard (HDF). Though the production process is very similar to that of MDF, HDF is even denser and thinner, which also means it is heavier.

This produces an even stronger product ideal for flooring. However, much like with MDF, the fibers will swell if they are exposed to water, so outdoor applications are not recommended.

Uses

In general, HDF can be used almost anywhere MDF would be used if you want a denser, more durable product, and don’t mind the extra weight (LeGros, n.d.).

By using different resins in the production process, medium- and high-density fiberboard can be given moisture or fire-resistant properties. This expands the uses for these products considerably but also increases the cost. These resistant versions are usually labeled by color: green for moisture-resistant and red for fire-resistant.

Speaking of types of wood, have you ever wondered what Sheesham wood is? Check out the guide to learn more.

Engineered Wood and Compressed Wood

engineered wood

Compressed wood is just one kind of engineered wood. Engineered wood is a broad category that includes particleboard, MDF, and HDF, but also plywood, beams, finger joints, laminated veneer, and many other products.

While these engineered products share similar manufacturing methods, the processes can vary greatly. The resulting man-made wood products have a variety of qualities and, therefore, a variety of uses.

One of the most common engineered woods is plywood, which is created by combining thin layers of hard or softwood in alternating 90-degree alignments with adhesives and pressure. The result is a durable wood product that differs from compressed wood. Plywood has a wide range of applications. It is primarily used in building construction, along with beams and finger joints, but it is also used in boats, packaging material, furniture, and more. So, while plywood is much more durable and sturdy than compressed wood, the trade-off is higher costs and a heavier weight (“Plywood as a Construction Material,” n.d.).

Is Compressed Wood Durable?

Durability Of Particleboard

The durability of compressed wood can vary depending on the type and how it is used. Particleboard is commonly used in furniture due to its lightweight and low cost, but the resulting furniture shouldn’t be expected to last for generations like older, natural wood furniture.

Chances are you won’t be handing down furniture made from particle board to your grandchildren. Furniture made from particleboard can be expected to last three to five years, depending on how often it is moved and what it’s being used for.

Everyday wear and tear will eventually cause breakage, and moving particle board furniture increases the chances of it coming apart.

If you’ve ever had to move a piece of particle board furniture, you’ve likely experienced some of the problems that can arise.

Particleboard Durability Issues

Legs can break off if mishandled, corners dent and crack easily, and screws will often strip out of their holes when moved around, resulting in rickety joints and an increased chance of collapse.

Also, once it is assembled, it can be very difficult to take it apart and reassemble, so pieces often need to be moved whole.

It is even easily damaged during shipping, meaning you could order a piece of furniture only to find it damaged before you’ve even had a chance to assemble it.

In addition, particleboard is not immune to moisture and humidity. Though a veneer on the outside of the particleboard can protect it to some degree, the interior can swell if it gets wet. In addition to weakening the wood, this is also just unattractive.

Advantages Of Particleboard

However, if you’re looking for a piece of furniture that won’t be exposed to water and won’t need to be moved much, then particleboard is a great choice.

This is why you commonly see things like TV stands and entertainment centers made from particleboard since people tend to leave their TVs in one spot.

Finally, particleboard cannot hold as heavy of a load as other types of compressed wood or natural wood. While it is a common material for shelving, you must be careful about what you place on it.

Thankfully, modern TVs are lighter than those of the past, so this is not quite as big of an issue as it once was when opting for a TV stand or entertainment center made from particleboard.

Durability Of MDF

MDF is more durable than particle board, but it still doesn’t handle excess moisture very well. A sealant can help, but it’s best to avoid uses where it may encounter water or other liquids.

Building a deck from MDF, for example, is not recommended unless you choose a moisture-resistant product.

Additionally, if the surface is chipped or scratched, it can lead to unattractive flaws, as the inside of the wood looks quite different from the sanded surface. It is hard to repair when damage does occur, and cutting it down into different sizes can lead to flaking.

Advantages of Compressed Wood

Cost Savings

First, compressed wood is much more affordable than natural wood. This is especially the case with particleboard, where the manufacturing process actually uses some of the waste that comes from manufacturing natural wood.

Using sawdust and shavings that are already around is smart and efficient, and it helps manufacturers keep costs down. In addition, since most compressed wood is mass-produced by machine, skilled carpentry work is rarely required. This also helps keep the costs low.

Splintering

Compressed wood won’t splinter like natural wood. Due to the process of bonding small pieces of wood together, the pieces simply aren’t big enough to splinter off.

Though particleboard can break and release small fragments of wood, it’s still not like the splinters that can come from natural wood.

MDF and HDF are even less likely to fragment, especially if you aren’t trying to cut them down.

Though we’ve talked about the durability problems that can arise with compressed wood, this is one area where it beats out natural wood.

Weight

Moving particle board furniture can lead to breakage, but the good news is that if you must move it, it is lightweight. MDF and HDF are much heavier than particle board, but MDF, in particular, may still prove lighter than plywood.

HDF, on the other hand, can be quite heavy due to its increased density. A bed frame or shelving unit made from compressed wood may be slightly bulky to move, but it won’t be as heavy as the same piece made from solid, natural wood.

Of course, the lightness of the wood product is a decent indicator of its durability, so keep that in mind when choosing compressed wood for a project. In general, the lighter the wood, the less durable it is.

Crafting & Decor

Compressed wood can be ideal for craft and decorative projects and building furniture. MDF and HDF are easy to paint, though their absorbent nature means you should not use aerosol spray paint (it will just soak right into the wood).

Starting with a quality oil-based primer is recommended, and it’s important to make sure the edges are sealed, or they will simply absorb the paint. One way to seal the edges is with a thin layer of drywall compound, which, once dry and sanded, will create a smooth edge ready to paint (Noonan, n.d.).

Other Advantages

Additionally, medium- and high-density fiberboard can be cut easily, though be aware that repeated cutting can cause the wood to flake. In addition, its high density means it will dull steel blades quickly, and attempting to cut with a dull blade will increase the chances of flaking or breakage. Carbide blades are recommended for this reason (“MDF (Medium Density Fiberboard) Guide / FAQ,” n.d.).

Compressed wood is environmentally friendly as well. The manufacturing process uses up wood scraps that would otherwise have no use and would be discarded. Some MDF and HDF products have even included recycled paper in their construction.

Though formaldehyde has been used in the resins involved, many manufacturers are moving away from its use and are using more environmentally friendly adhesives such as natural lignin-based resins (Beutel, 1996).

Speaking of adhesives, do you know what PVA glue is? To learn more, check out the detailed article.

Disadvantages Of Compressed Wood

Compressed wood, while sturdy for certain uses, generally lacks the strength of solid wood.

For instance, the tensile strength of solid oak is around 9000 psi (pounds per square inch), while compressed wood products like medium-density fibreboard (MDF) stand at about 4500 psi.

One major downside is its vulnerability to moisture. Exposure to water can cause swelling, warping, or even disintegration. This is particularly crucial in humid environments or in furniture pieces like bathroom cabinets.

Consequently, furniture made from compressed wood in a humid environment might last only 5-7 years, compared to over 20 years for solid wood pieces.

The production of compressed wood involves adhesives containing formaldehyde, a VOC that can be released over time, affecting indoor air quality. 

Speaking of maintenance, if compressed wood gets damaged, it’s tough to repair. Unlike solid wood, which can be sanded down or refinished, compressed wood doesn’t respond well to these treatments. This means that a chipped or scratched piece might need complete replacement.

So, to just quickly recap the advantages and disadvantages of compressed woods:

Advantages:Disadvantages:
Affordable optionLow tensile strength
Doesn’t splinterVulnerable to moisture and damage
LightweightShorter lifespan
Easy to paint and cutNot easy to maintain

Alternatives To Compressed Wood

1. Plywood

Plywood is a type of wood sheet that consists multiple layers of wood. The arrangement is done in such a way that its wood grains remain perpendicular to each other.

It is ideal for a wide range of applications, from furniture and cabinetry to wall sheathing and flooring. It’s also popular in construction due to its ability to withstand heavy loads.

Available in various grades, from high-quality, smooth-faced varieties suitable for visible surfaces to lower grades for structural use.

2. Wood Plastic Composite (WPC) Lumber

WPC typically lasts over 25 years without significant degradation, far surpassing the lifespan of standard compressed wood.

It’s resistant to rot, decay, and termites, making it ideal for outdoor applications like decking, fencing, and landscaping. WPC is an eco-friendly option as it often uses recycled materials and reduces wood waste.

3. Oriented Strand Board (OSB) Boards

OSB is made from pressed wood strands coated with adhesives. The strands are oriented in different directions, which increases the board’s strength and rigidity.

Cheaper than plywood, OSB is a popular choice for sheathing in walls, flooring, and roof decking.

While OSB is durable and moisture-resistant, it’s not as resistant to water as plywood and can swell at the edges when exposed to high moisture levels.

4. Structural Foam Boards

These boards are made from a foam core sandwiched between layers of wood veneers, plastics, or other materials. They are lightweight yet provide good strength and rigidity.

They are up to 60% lighter than plywood, facilitating easier handling and installation.

5. Blockboard

Blockboard (a type of plywood) is made up of multiple wooden strips. It consists of both softwood as well as hardwood. Its special manufacturing technique involving high pressure and careful arrangement of the wooden layers ensures structural stability.

Perfect for interior uses such as furniture, doors, panels, and shelves, especially where lengthy pieces of wood are required.

Compressed Wood as Firewood

compressed wood fire

Another area where compressed wood is used is firewood. Though these man-made bricks differ from particleboard or fiberboard, which we’ve discussed previously, the manufacturing process is similar.

Compressed wood bricks are usually made from sawdust and are free from other chemicals or binders due to the natural lignin in the sawdust itself.

The dried sawdust is formed into bricks and then placed under extreme pressure, releasing the natural lignin in the wood.

Lignin is a compound that basically acts as a natural binding agent, adhering to the sawdust together. The result is a product that is lighter and more compact than traditional cord firewood, and yet it can produce even more heat due to being dried out during production.

It is easier to handle than traditional firewood as well, making it perfect for your living room fireplace but also backyard fire pits or camping fires.

The bricks take up less space than traditional firewood, and since they are made from recycled sawdust that would otherwise be discarded, they are a more environmentally friendly product.

It also burns cleaner, producing less smoke and leaving less ash and residue to be cleaned up later.

Many people combine compressed wood bricks with traditional cordwood to get the best of both worlds: a long burning, consistent fire that still gives the snap and crackle of a traditional wood fire.

Now that you’ve learned about compressed woods, there is also another type of wood called Parawood. Check out this detailed guide on what Parawood is to learn more.

Final Thoughts

As you can see, there are many advantages to using compressed wood over natural wood. Though not perfect for all applications, particleboard, MDF, and HDF are great choices for building furniture, molding, trim, cabinetry, and decorative projects.

In addition, compressed wood firewood is becoming a more popular choice due to its ease of use and environmental advantages.

It is important to be aware of compressed wood’s limitations before choosing it for your project and proceeding accordingly to ensure a product that will succeed just as you intend.

References

7 Uses of Particle Board in Building Industry. (n.d.). Retrieved from 

https://gharpedia.com/blog/uses-of-particle-board/

Beutel, Peter. (September 20,1996). 

https://fennerschool-associated.anu.edu.au/fpt/mdf/enviro.html

LeGros, Scott. (n.d.). MDF vs. HDF: How they’re different and what they’re good for. Retrieved 

from https://forestplywood.com/blog/mdf-vs-hdf-how-theyre-different-and-what-theyre-good-for/

MDF Medium Density Fiberboard Guide / FAQ (n.d.). Retrieved from 

https://www.diyaudioandvideo.com/Guide/BuildSpeakerBoxWithMDF/

Medium Density Fibreboard. (n.d.). Retrieved from 

https://en.wikipedia.org/wiki/Medium-density_fibreboard

Noonan, Jennifer. (n.d.). How To: Paint MDF. Retrieved from 

https://www.bobvila.com/articles/how-to-paint-mdf/

Particle Board. (n.d.). https://en.wikipedia.org/wiki/Particle_board

Plywood as a Construction Material. (n.d.). Retrieved from 

http://www.understandconstruction.com/plywood.html

Amazon Affiliates Disclaimer.

This site is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com. We are compensated for referring traffic and business to Amazon and other companies linked to on this site. Some of our links are affiliate links. We make a small commission if you use these links. As an Amazon Associate, I earn from qualifying purchases. It is important to do your own research to find what works best for you.