Both solid and hollow composite decking looks like wood decking. They have a variety of textures, including the wood grain surface texture. But if you want composite decking that looks like real timber, the solid board is the deal. This kind of composite board is a great selling point for decking owners because it looks classic and has the feel of timber. Hollow composite decking is similar to solid but for the holes that run through the board. If you are new to installing decking, you might not know which to choose. 

Similarities between Solid and Hollow Composite Decking

If you consider the texture and material composition of solid and hollow decking, you will observe that they are both composite decking. Another name for composite decking is plastic wood composite. This decking material contains recycled PVC and lumber. 

Makers of plastic composite decking process the materials in a factory where they mix it with a bonding agent and heat it till it becomes solid. After, they will shape the boards to form solid or hollow decking. Like every composite wood plastic material, solid and hollow decking are resistant to moisture, insects, rain, or fluctuating temperature. 

This infers that plastic wood composite is durable. When you install your plastic wood decking, it will last longer because it will not splinter or crack. Aside from that, the plastic wood composite will not warp like timber. Easy maintenance is another similarity between solid and hollow composite decking. 

You can care for your solid or holler boards by wiping the surface with a cloth. Aside from cloth, you can spray the top with a water hose. Both solid and hollow composite boards have high aesthetic value. You can get the matte finish, coarse surface finish, or non-slip finish if you want. 

When you fix your solid or hollow plastic wood decking, the pigment will not quickly fade to grey. Although all composite material will lose a small amount of pigment, the colour will last for a long time. Those are the similarities between solid and hollow composite decking boards.

Difference between Solid and Hollow Composite Decking

To understand the difference between solid and hollow composite wood decking, you have to get a sample of each. You can order your sample from  When you examine both decking material, you will notice something obvious in the two. 

Place both decking samples on a table and look at their sides. If you look at the boards’ sides that correspond to the length, you will not notice anything. The side of the composite decking that you should look at is the top or bottom side. You will notice channels in hollow boards but solid surfaces in solid boards.

 Solid plastic wood decking boards have no hollow or channels. They resemble timber planks. Hollow boards have holes or channels that run from one side of the boards to the other. When you look through these hollows, you will see the other sides of the decking. Hollow composite decking is solid decking boards that have a hole in them. It is like passing several rubber pipes through solid plastic wood decking. 

Advantage of Hollow Composite Decking

Solid and Hollow Composite Decking

Makers of plastic wood decking have been making solid boards before they start producing hollow. After making the boards in a factory, they added the holes to form hollow decking. One advantage of hollow plastic wood decking is that it is lightweight.

 Lightweight means that hollow decking is easy to carry. Also, hollow boards will not add additional weight to the joists when you install them. This reduces the risk of collapsed decking. Another advantage of hollow composite decking is that you can easily install it. You don’t have to be an expert decking installer to fix your hollow decking. 

If you contemplate the price of decking, hollow boards are cheaper than solid. Also, hollow composite decking boards can expand easily when the temperature changes. Those are advantages of hollow composite decking boards. 

Advantage of Solid Composite Decking

Solid decking

Solid composite decking boards are dense because they have a solid core. Unlike hollow decking boards that have holes in between, solid is filled all through. Although solid decking boards are heavier than hollow boards, it is better to use solid boards because it offers load-bearing support.

 Also, solid composite decking will last longer because it is built to resist stress, heavyweight, mould, mildew, and lots of foot traffic. While hollow decking might seem like a cheaper alternative, solid is still better because it is built strong and will last longer.


You can use either solid or hollow composite decking boards to build your decking. If you want a lightweight structure, then hollow boards are the deal. But if you want a firm decking that will withstand stress, solid boards are the deal.

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