If you own a garden, you can make it attractive by installing composite decking in it. There are several ways to install composite decking in your garden. You can either install an elevated decking of a ground-level flush garden. Installing a ground-level decking in your garden is the same as installing the decking on grass. This write-up addresses composite decking grass installation.

Tools You Will Need

To install your composite decking on grass, you will need several tools for the task. Composite decking grass installation requires a shovel or spade, a digger to dig holes, a measuring tape, several posts, and markers.

Aside from that, you have to purchase the materials that you will use to build the decking, which is composite decking boards. Also, you will need to prepare the planks that you will use to build the joists or the substructure of your composite decking. 

Type of Composite Decking Installation

Prepare the ground for ground-level flush decking

Composite decking can be installed in two different ways. You can build an elevated composite decking, or you can build your decking directly on the grass in your garden. For an elevated decking, you will have to use a long post for the foundation. This will ensure that your decking is raised above the ground and create space underneath it. 

Elevated decking installation is good if your house is raised above the ground. Then you must use posts to raise your decking to the level of your home. Aside from elevated decking installation, there is grass decking installation. This method of installing decking is straightforward, and the decking is directly on grass. 

You don’t need long posts to install your composite decking on grass. If you must use posts, you will use short ones that are close to the ground. Some homeowners use a cement slab instead of posts. Some when they lay the joists or substructure, they lay it on the cement slab.

Installing Composite Decking on Grass

When you want to install composite decking, the first thing to do is clear space and ensure that it is levelled before you proceed.

Step One – Clear the Area

You must clear the area you install your composite decking if you are installing it on the grass. Remember that you are installing composite decking in your garden so you will remove lots and lots of grasses. For you not to distort the surface of your garden, you have to plan your composite decking project carefully. 

You have to know the part of your garden that you will install your composite decking and measure it to know the number of boards you will need. After clearing the area for your composite decking, you can use a shovel to remove the surface grasses from the place. Then you should ensure that the area is well-levelled before you install your composite decking. You can add fabric to the place so that grasses will not grow after you have installed your decking.

Step Two – Fix the Posts or Cement Slab

The next thing to do after you have cleared the area is to fix the posts or cement slab that will be the foundation of your decking. If you are using posts, you must dig holes at an interval around the area you will install your composite decking. Note that your posts should not belong so that your decking will be close to the ground.

 After digging the holes, you can place the posts in them and seal the holes with cement. Wait until the cement and post become dry before you start fixing the joists. If you are using cement slabs, you don’t have to dig holes, all you need is some spot where you will place the cement slabs.

Step Three – Build the Joists or Substructure

You must attach the joist or substructure to the posts or cement slabs when building your decking. Attach the outer frame to the posts of cement slabs before you attach the inner frame. And you should connect the frame with planks. You should use treated planks so that they will not rot after you have to build your composite decking.

Step Four – Install the Composite Boards

After building the substructure, you can start installing the composite decking boards. You should use clips and fasteners to attach the boards to the joists. Ensure that you leave a 5 mm gap between the boards because of expansion. When you have finished installing your composite decking on grass, you can cover the edges and clean the top.


Composite decking grass installation enables you to add beauty and extra space to your garden. You must ensure that you follow the steps we outlined in this write-up.

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