How to Cut Composite Decking?
With great performance and aesthetics, many homeowners choose composite decking for their outdoor spaces. But for homeowners new to DIY, installing composite decks themselves can be difficult. How to cut composite decking once they start planning their build? Cutting lumber has almost the same process as cutting composite deck boards. But there are specific best practices you need to be aware of.
This article covers everything you need to know about cutting composite deck boards so you can properly prepare and install your deck. Before you start cutting decks, though, be sure to check the manufacturer-specific guidelines.
Table of Contents
Can you cut composite decking?
Simply put, yes. You can cut composite decking boards just like you would cut wood. No special tools are needed, and cutting composite decking is not complicated.
Things to consider when cutting composite decking
Cutting composite deck boards requires power tools, so safety is a top priority. So before cutting composite decking, please review the following precautions.
Safety
- Wear personal protective equipment (PPE), including eye and ear protection, when using power tools.
- Always keep a safe distance from the saw blade and follow the manufacturer’s instructions
- Use appropriate equipment and good-quality blades
- Ensure that all cutting equipment is in good condition and has appropriate guards and safety devices
Cutting and Installation Best Practices
- Complete installation quickly after cutting to minimize changes in deck length due to expansion or contraction.
- Avoid direct sunlight on composite decking
- Keep the deck cool during the cutting process.
Deck Board Cutting Tool
Cutting composite decking uses the same tools used to cut wood, with proper safety tools. We recommend that you use an electric miter gauge to cut EVODEK composite decks.
| Saw type | Best for | Blade recommendation |
| Miter | Cutting boards to length, square, and angle cuts | Fine-tooth, carbide-tipped trim blade |
| Circular | Rip cutting boards to width, and cutting boards to length with the use of a guide | Fine-tooth carbide-tipped finish blade |
| Table | Rip cutting boards | Fine-tooth carbide-tipped finish blade |
| Jigsaw | Cutting around obstructions and posts | Fine-tooth finish blade |
How to Cut Composite Decking?
After you have done all the preparatory work and read the notes, you can start cutting composite deck boards.
Prepare the Workspace
Proper preparation and equipment will help you safely cut decks and maintain proper cuts during the cutting process. Start by storing your composite decks in a flat area out of direct sunlight. And install them quickly after cutting composite decking to minimize expansion and contraction caused by temperature changes.
There are a few items you will need to have on hand before you start cutting:
- Miter saw
- Proper saw guide
- Carbide-tipped saw blades
- Saw horses
- Protective equipment
- Tape measure, straightedge
Square Cut Board Ends
The first cut is made to complete the deck trimming. measure twice, using a straightedge and pencil to mark the proper length. Use a saw to cut the deck to the desired length.
Measure and Mark the Deck
Once the factory end is level, measure and mark the deck to the proper length. Use a pencil to mark your desired length on the deck. Measure twice before cutting to avoid mistakes.
Cut Deck
After marking the cut, align the mark on the deck with the saw blade. A miter saw is ideal for cutting composite decking. Cut one piece of decking at a time with the grain side up. Cutting composite decking should be similar to cutting other types of wood.
Most decking only needs to be cross-cut to length, but for some different projects, you may need to reduce the width of the decking. This is where you need to use a rip cut for composite decking cutting.
Rip cut reduces the width of the decking and cross cuts it along its length. It can help you build any size deck. However, you need to plan and build the size of your deck to avoid using rip cut because rip cut is ugly. However, you may need to rip-cut a deck if your deck is not the right shape or size.
Rip cuts are relatively easy, but require some additional safety and installation tips. A table saw is ideal for implementing rip cuts, and you can also use a circular saw with a blade and guide.
Installation and Cleanup
Cut and install the deck one piece at a time, which minimizes length variations due to temperature. After installing all decks, wipe off all dust and debris thoroughly. Finish cleaning according to the composite decking manufacturer’s instructions to protect the deck from fading.
FAQ
Does composite decking require sanding?
No, most modern composite decking protects the deck from moisture, UV exposure, and other damage. Sanding composite decking can cause damage void warranties and affect the performance of the deck. EVODEK’s leading-edge technology makes our products resistant to harsh weather and wear and tear. Our composite decking features a polymer cap that resists fading and staining.
How long does it take to cut composite decking?
The time it takes to cut composite decking will vary depending on the complexity of the project. It takes approximately 4 to 5 hours to install the decking on a pre-framed rectangular substructure (size 12′ x 16′ with 16′ channel boards) using hidden fasteners.
Will cutting composite deck boards void the warranty?
No, EVODEK composite decking is designed to cut a wide range of deck designs and sizes. both rip cut and cross cut are suitable for composite decking and will not void your warranty.
Do I need special tools to cut composite decking?
You don’t need any special tools or blades to cut composite deck boards, but using a properly sharpened blade will provide the best results. In general, we recommend that you use a sharp, precision-finished, high-tooth-count carbide blade.
Do I need to hire a professional?
Cutting and installing composite decking is much easier for professionals. If you are not hands-on enough, we highly recommend hiring a professional contractor. They can offer many benefits:
Have expertise in designing and decorating deck spaces and lifestyles.
Can add decorative patterns and other features for you (built-in seating, railing, stairs, and other elements).
- Easily obtain permits to meet local requirements, such as building codes.
- Projects can be completed more efficiently.
- Can obtain materials through multiple suppliers, so you can get the best price.
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