QA

Quick Answer: How To Install Composite Deck Boards

How do you fasten composite deck boards?

To install composite decking with a hidden fastening system, start at the house by face-screwing the first board. Next, screw a hidden fastener clip into the groove on top of each joist. Then, slide the groove of the next board into the clips and tighten with a rubber mallet.

What do you put under composite decking?

However, you will need a good base for the composite decking. Many use concrete flooring and concrete slabs for an even and stable base. Some also use adjustable pedestals. Using pressure-treated wood or composites will make a strong and durable frame.

Can you screw in composite decking?

You can screw or nail composite decking boards just like wood ones. Three-inch decking screws are the best fastener choice; they sink a secure distance into the joists and won’t back out like nails. There’s little danger of splitting the boards when driving them, so you don’t need to pre-drill.

Do you need a special saw blade to cut composite decking?

Table saw blades with a 7 to 9 inch diameter and few teeth are best for cutting composite decking. Blades made specifically for cutting composite decking usually have a tooth design that makes them unique from the other ones. The material that is going to be cut should be kept in mind when selecting a jigsaw blade.

How much gap do you need between composite deck boards?

One of the most critical steps for properly securing composite decking in place is to make sure you have a 1/4-inch to 3/16-inch gap between the decking boards (don’t exceed 1/2 inch). This space is important for two reasons.

How do you stagger composite deck boards?

“Stagger your boards so their ends are in different spots.” Slide the next board in so it’s parallel to the first. The sliding motion is important, as you want the spacer to fit in the groove of this board, too. Basically, you’ll have two boards with the spacer between them.

Can composite decking be put directly on the ground?

Composite lumber is highly resistant to rot and impervious to insects so is an acceptable choice ground contact.

How do you edge a composite deck?

How to finish the edge of a composite decking is simple if you use picture framing to cover the board edges. You can also paint the edges, glue a veneer cap to the ends, attach a raised fascia board or add a composite corner trim to create a consistent look.

Where do you start deck boards?

In most cases, it’s best to start with a full board on the outside edge of the deck and work toward the house so the odd board is less visible. Then measure when you’re 4 to 5 ft. away from the house and adjust the gap sizes to be sure the last board is a consistent width.

Should I seal my composite deck?

Low-Maintenance With Trex Composite Decking Trex composite decks are designed to look like natural wood decks, and we offer deck designs in a range of wood colors and stains. You won’t ever need to seal or stain the deck, and you certainly don’t have to (and shouldn’t) paint it.

Should you pre drill composite decking?

Do I Need to Pre-Drill My Composite or Capstock Decking? In the past, no matter what type of deck board you were installing, the answer to this question would indefinitely be yes. However, with advancements in fastener technology, pre-drilling in most composite and capstock deck boards is no longer necessary.

How many teeth do I need to cut composite decking?

What is the Best Saw Blade for Cutting Composite Decking? The EnviroBuild installation guide advises the use of a circular saw using a 40 tooth alternate top bevel finish blade to cut your composite decking boards.

What screws for composite decking?

If you opt for composite deck screws, be sure to use stainless steel screws that will not rust or corrode. Select a minimum size of #8 x 2.5 in.

What are the problems with composite decking?

Common complaints from homeowners include their composite decking board swelling, shifting, warping, and shrinking. The cause of this isn’t exactly clear, but it’s suggested that the composite nature of the decking leads it to be much more sensitive to temperature and humidity swings as well as sun exposure.

Can you but composite decking together?

Yes, additional framing is required for staggering decking. Composite decking needs the full 1 ½” (38mm) of framing to support the ends. If you stagger the joints, an additional block will need to be added to the joist to support the decking.

What are the disadvantages of composite decking?

Cons of Composite Decking A pricey alternative to wood. Durability comes at a cost, as composite decking is more expensive than wood. Composites aren’t natural. Composite decks aren’t completely maintenance free. You’ll need to comparison shop.

Is it better to stagger deck boards?

Staggering the deck boards decreases the number of screws or nails going into one joist, which can weaken or rot the joist more quickly. Staggering the joints strengthens the deck by spreading the seams across more joists instead of placing the stress on only one.