How to Install Composite Hollow Decking on a Slope

Installing composite hollow decking on a slope might seem challenging, but with the right method and steps, you can complete this DIY project yourself. Whether it's to beautify your garden or enhance the utility of your outdoor space, installing composite hollow decking is an excellent choice. Here are the detailed steps for installing composite hollow decking, helping you successfully complete the installation on a slope.

Composite Hollow Decking: Planning the Foundation

The first step in installing composite hollow decking on a slope is to plan the foundation. You need to dig two sufficiently deep foundation holes on the slope, ensuring each hole's depth reaches hard soil. These holes will be used to place the support posts for the composite hollow decking. Stability of the foundation is crucial for the durability of the composite hollow decking, so make sure the diameter of the holes is about one foot, and the depth is enough to prevent sliding. For every increase in slope level, the foundation depth should increase by about one foot. For loose or unstable soil, you may need to dig deeper to ensure the support structure of the composite hollow decking is sturdy.

Composite Hollow Decking: Installing Support Posts

Place the support posts for the composite hollow decking in the dug foundation holes and measure the height from the bottom of the posts to where you plan to install the composite hollow decking. Leave an extra foot of length at the end of the posts for trimming after installation. Ensure the posts are vertical and secure by filling the foundation holes with concrete and letting the concrete dry completely. Use a level to check if the posts are horizontal and correctly positioned to support various parts of the composite hollow decking.

Composite Hollow Decking: Constructing the Frame

On the other end of the slope, dig two more support holes for the other side of the composite hollow decking. Place the long posts into the holes, measure their length with a rope to ensure the posts are sufficient to support the composite hollow decking. Repeat the steps to fill the holes with concrete and use a level to check if the posts are horizontal. Set measurement marks, and install the composite hollow decking frame based on these marks. Use 3-inch bolts or nails to secure the beams of the composite hollow decking to the support posts, ensuring the structure's stability and durability.

Composite Hollow Decking: Installing Deck Boards

After completing the frame construction for the composite hollow decking, use 3-inch nails or metal brackets to secure the floor joists to the beams. Carefully check and follow local building codes to ensure the composite hollow decking joist spacing meets the standards. After confirming compliance, install the composite hollow decking boards onto the joists and secure them with specialized screws. Ensure each deck board is securely installed to guarantee the overall stability of the structure.

Composite Hollow Decking: Adding a Railing System

Composite hollow decking installation is complete, you can add a railing system to enhance safety and aesthetics. You can choose to purchase a prefabricated railing system or custom design one according to your needs. When installing the railing, first cut the rail and top rail to the appropriate height. Use square head screws to fix the railing to the outer edge of the composite hollow decking, ensuring the railing's spacing and height meet building codes. Use a level to check if each rail is vertical, ensuring the railing system's stability and safety.

By following the above steps, you can successfully install composite hollow decking on a slope. Correct planning and installation methods not only ensure the beauty and durability of the composite hollow decking but also bring lasting comfort to your outdoor space.