Step-by-Step Guide to DIY Composite Decking Installation in Singapore

Composite decking has become increasingly popular in Singapore due to its durability, low maintenance, and aesthetic appeal. If you’re considering adding decking to your home, this step-by-step guide will provide you with all the information you need to install composite decking on your own. With proper planning and the right tools, you can create a beautiful outdoor space that will enhance the value and enjoyment of your property.


Gather Materials


Some of the considerations when selecting composite decking are ease of installation and the need for specialized tools. Before you begin, ensure that you gather all the essential tools and materials needed for DIY composite decking installation. Start by measuring the area where you plan to install the deck to determine the amount of composite decking boards you’ll need. You’ll need pressure-treated lumber for the frame, galvanized screws, a circular saw, a drill, a level, and a tape measure. It’s also a good idea to have safety equipment such as gloves and safety glasses on hand. 


Plan and Mark the Installation Spot

Once you have all the materials for wood plastic composite decking installation, it’s time to plan and mark the installation spot. Start by clearing the area of any vegetation or debris. Next, use stakes and string to outline the shape and dimensions of the deck. Take into consideration any existing structures or obstacles that may affect the layout, especially if you want to install any of the different composite decking designs. This step is crucial as it will serve as a guide for the rest of the installation process.


Build the Frame


Despite the comparison between composite decking and wood decking, they both necessitate a frame for better support. Start by digging post holes at each corner of the deck and at intervals of six feet along the perimeter. The depth of the holes should be based on local building codes and the type of soil in your area. Place the pressure-treated posts in the holes and secure them with concrete. Once the concrete has been set, attach the pressure-treated beams to the posts using galvanized screws. Finally, attach the joists to the beams at regular intervals, ensuring they are level.


Fix the Posts

After the frame is complete, it’s time to fix the posts. Measure and cut the decking boards to the desired length, leaving a small gap between each board for expansion. Place the first board against the outer edge of the frame and secure it in place using the appropriate screws. Continue this process until all the boards are fixed, ensuring they are aligned and level. However, improper installation is a key reason why you should not do DIY composite decking installation. If you find these procedures challenging or time-consuming, it is advisable to hire a professional.


Attach the Stringers

One of the benefits of choosing composite decking for your home is durability. However, if the support is not firm, you might encounter some decking issues in the future. In order to add stability and support to the deck, attach stringers to the frame. Stringers are diagonal pieces of lumber that connect the deck to the ground or a landing. Start by measuring the distance between the bottom of the frame and the ground or landing. Cut the stringers to the appropriate length and attach them to the frame using galvanized screws. Be sure to space the stringers evenly for optimal support.


Lay the First Board


With the stringers in place, it’s time to lay the first board. Start by measuring and cutting the board to the desired length. Place the board against the outer edge of the frame and secure it in place using screws. Ensure that the board is aligned and level with the rest of the deck. Repeat this process for the remaining boards, ensuring that there is a small gap between each board for expansion. 


Continue Laying Decking Boards


Once the first board is in place, continue laying the decking boards. Measure and cut each board to the desired length, ensuring a small gap between each board. Secure each board in place using the appropriate screws. It’s important to maintain alignment and level as you progress. Take your time and double-check your measurements to ensure a professional-looking finish. If the process is quite tedious for you, you can outsource it to the experts. It is recommended to make use of some tips on choosing the right composite decking installation company to get the job done accordingly.


Install the Final Two Boards

As you near the end of the deck, you may need to make adjustments to the final two boards to ensure a proper fit. Measure and cut the boards to the appropriate length, ensuring a small gap between each board. Secure the boards in place using screws. Double-check the alignment and levelness to ensure a seamless transition between the boards.


Fascia Finish


To give your deck a polished and finished look, install fascia boards along the outer edges. Fascia boards are used to cover the ends of the decking boards and create a smooth, cohesive appearance. Aside from aesthetics, this material can help you maintain your composite decking from dirt and internal moisture as it covers the end of the board. Measure and cut the fascia boards to the appropriate length and secure them in place using screws. Ensure that the fascia boards are aligned and level with the decking boards for a professional finish.


Inspect and Finish

Once the deck is complete, take the time to inspect the installation for any loose boards or screws. Tighten any loose screws and perform decking replacement if there are damaged or warped boards. Additionally, apply a decking varnishing to the deck to enhance its longevity and resistance to the elements. Follow the manufacturer’s instructions for the specific type of finish you choose.


Contact DW Decking Singapore for Professional Composite Decking Services

If you’re not confident in your DIY skills or simply prefer to leave the installation to professionals, consider contacting DW Decking Singapore. We offer professional decking services that will ensure a high-quality and hassle-free deck installation. Our team of experts will guide you through the process, from planning to completion, and provide you with a deck that meets your specifications and exceeds your expectations.



Installing composite decking can be a rewarding DIY project that adds value and beauty to your home. By following this step-by-step guide, you’ll be well-equipped to tackle the installation process with confidence. Remember to gather all the necessary materials, plan and mark the installation spot, build the frame, fix the posts, attach the stringers, lay the decking boards, and finish the deck with fascia boards. Inspect the installation for any loose screws or boards and apply a protective finish for added durability. Additionally, it is essential to recognize the importance of hiring a professional composite decking company, especially if you find yourself lacking the time or expertise for your project.


DW Decking Singapore stands as the pinnacle of expertise and innovation in the realm of outdoor living spaces. We specialize in offering premium decking services, encompassing balcony decking, timber decking, wood decking, timber decking repair, wood decking repair, decking varnishing, decking replacement, and more. With an unwavering dedication to excellence, our team of skilled professionals ensures that each decking project is executed with precision –  elevating your outdoor spaces into inviting sanctuaries of beauty and functionality.

Furthermore, our portfolio and reviews speak volume about our dedication to exceeding our customers’ expectations. Aside from offering superior craftsmanship, we go the extra mile by providing informative articles, ensuring you make well-informed decisions about your decking needs. Contact us via WhatsApp at +65 8241 0032 for transparent quotations for all your decking requirements.