You can finish the edges of your composite decking by using the picture frame method, by installing fascia boards or by painting the rim with good latex paint.

Finishing the edges of your composite decking is essential because it provides a seamless design after installing your decking. Aside from that, it hides the rough edges of your composite decking.

For you to obtain the best result, you have to plan. Planning means knowing where you want to build your composite decking. Also, you have to know the size of your decking. For detailed information about this, see the write-up – How Do I Build My Composite Decking.

If you know the kind of decking you want, you can then think of the type of finish you will give your composite decking edges. When you hide the edges of your decking, your yard will be beautiful. Aside from beauty, composite decking has other advantages. 

Composite Decking Are Durable

The durability of composite decking lies in its strength. Plastic wood decking strength to weight ratio is high. What this implies is that composite decking is lightweight and arduous.

 It makes it possible for you to utilise your composite decking for a long time. Depending on the grade of composite decking, your decking will last for more than 25 years. 

Composite Decking Requires Little Maintenance

Plastic wood decking is unlike wood decking because it is easy to maintain. Taking care of your composite decking requires little effort. All you should do is to sweep it regularly

If there is grease stain on your composite decking, clean it with a brush and soapy water. Wood decking, on the other hand, requires elaborate cleaning. You have to sand it, oil it, stain or paint it before it becomes clean. 

Composite Decking Is Resistant to Insect Attack

Insects like termite cannot destroy your composite decking when you install it in your yard. It is because they consist of durable material that makes them strong. Aside from insects, composite decking is resistant to elements of mother nature. 

These elements of nature include sunlight, rain, ice, and fluctuating temperature. This benefit of composite decking goes in line with the beauty it adds to your yard. So, to cover the edges of your composite decking, you have to utilise one of these methods. 

Picture Frame Method for Finishing Composite Decking

Designing your composite decking so that it looks like your picture frame is one way you can conceal the rough edges of your composite decking. Decking builders give this technique the name because the joist looks like a picture frame. 

How to Finish the Edges of Composite Decking?

You can achieve this technique when you arrange the outer frames of your joists so that they meet each other. It means running outer planks around the perimeter of your joists.

The planks can be pressure treated plank or composite boards. When you do it, it is the flat sides of the planks that you will see when you view your decking from the side. 

The frame prevents the composite decking boards from reaching outside. You will install the composite decking boards inside the frame. In most cases, builders use double structure to build the perimeter of a composite decking joist. 

Using Fascia to Cover the Edges of Your Composite Decking

This technique requires the use of composite decking boards to cover the edges of your decking. You can do this after installing the decking. The rough edges of your composite decking will be visible from outside. 

By fixing an outer board to the frame of your decking, it will cover the edges. So, when you view the decking from the sides, it is the exterior boards that you will see not the rough edges. Also, you can paint the outer panel with paint of matching colour If you want.

Using Paint to Coat the Edges of Your Composite Decking

You can paint the rough edges of your plastic wood decking water you have made it smooth. You should make sure the paint matches the colour of your composite decking.

The three methods of finishing the edges of your composite decking is a great way to make it beautiful. Any technique you choose will work better for your decking.  Note that if you want to use the picture frame method, you must have enough experience and must draw out the plan carefully. 


You can finish the edges of your composite decking using the picture frame method. Also, you can use fascia or paint the edges to conceal the rough marks.

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