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WPC decking

Composite decking is one of the most durable and safest types of flooring. Composites are made of both recycled wood and recycled plastic. Not only is it strong, but it also keeps the wood’s beauty. But now, people are building decks out of composite materials. Now, let’s talk about the best joists that you need to build composite decking.

But you need more than just strong materials to make your deck safe and last a long time. Building a floor, from the foundation to the end, is a very important process. Just as important as the materials you will use is how you plan to build. So, what do you do first when you make a deck?

Joist frame

Putting down a good base is one of the first steps in building a deck. When you use composite materials for a deck, you don’t have to do as much work for the foundation as when you use other materials. Just build a solid joist frame to use as a base or deck support. For your decking construction, you don’t need to set up a complicated foundation or a concrete foundation.

Yes, WPC decking needs foundations that are easier to build than others. But that doesn’t mean you should settle for mediocrity. Remember that these frames are important to your decor. If you don’t pay attention to these details, bad things could happen.

Which joists work best with composite decking?

When choosing joists for your composite decking boards, you should think about a lot of things. The floor structure is held together by trim frames and trims joists. To get the most out of your floor, you should build the best base you can. You’ll need to find the best joists to do this.

Different things can be used to make decorative frames. Wood is a common material for joists, especially in residential settings. The most common types of wood used to frame a deck are pine, oak, and cedar. You can make the frame out of both wood and WPC material.

The advantages of composite joists are the same as those of composite decking. It does a great job of keeping out water, mildew, and rot. At the same time, the composite joist has the benefits of being strong and lasting for a long time. When compared to pressure-treated wood, composite decking can be easier to use.

So, if you use a composite deck to build your outdoor living space, you’ll need to keep this in mind. We also recommend that you build deck frames for outdoor decks with composite joists.

How to build deck frames with joists?

The frame’s height from the ground

You should also think about how high your deck is off the ground when choosing the material to use. For subfloors and patios, you need to keep water and rot from getting into the frame.

So, if you choose pressure-treated wood, you must do a good job of treating it to keep out water and prevent corrosion. Don’t let the rotting of the deck frame cause serious safety problems on the outdoor deck. Because of this, composite joists are the best choice.

Distance Between Joists

When putting in joists, you should also pay attention to how far apart they are. It is the distance from the middle of one joist to the middle of the other. Even if you use the best materials, the result won’t look good if you don’t leave enough space between the beams.

In residential areas, 16 inches is the norm for spacing between things. Commercial decks, on the other hand, are usually required to have 12 inches because of safety rules. Some do 24″ spacing. The planks are not as strong when there is more space between the joists. So, if you want a strong deck, choose joist spacing that isn’t as far apart.

But the best thing to do is follow the instructions given by the manufacturer or supplier. You will also have to follow the rules for building in your country.

How thick a joist is

The results of building a deck can also be affected by how thick the joists are. Like spacing, the thickness of the joists will determine how much weight the floor can hold. Decks are stronger when the beams are thicker and stronger.


No matter what kind of material is used for the deck. It is very important to have a strong and long-lasting deck frame. Your deck can last longer if it has a good frame. So you won’t have to worry about your family’s safety.

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