Table of Contents
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 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.
What is the gap between composite decking boards?
All deck boards must always be installed with a 6mm side-to-side gap. The Trex Hideaway Hidden Fasteners automatically measure the 6mm gap between grooved edge boards but you must still ensure the 6mm gap with the square edge boards.
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.
Where should I lay my deck board first?
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.
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.
How far apart should joists be for composite decking?
Most composite and PVC decking brands, like Trex and Azek, recommend a maximum joist spacing of 16 inches OC. Some brands, like WearDeck, let you get away with more – reinforced with a layer of fiberglass on both the top and bottom, WearDeck boards easily allow for spans of 24 inches OC.
Do you have to stagger composite decking?
Composite decking should not be staggered on a deck. Staggered decking requires butt joints, but composite decking expands and contracts with temperature changes making butt joints unsightly.
How do you prepare the ground for a composite deck?
Clear away plants, rocks and weeds, and dig down to a depth of roughly 50 mm. Clear away the turf so you’re working with the bare soil. Check the ground is even. Use a flat surface (a decking board or tamper is perfect for this) and place a spirit level on top to check the ground is even.
Does composite decking need to be sloped?
Frame your composite deck This frame lends strength and function to the deck. You should include a slope of 1/16 inch per foot to allow water to move away from the walls. This will be part of the code structure for permits.
Is it easy to lay composite decking?
Composite decking is relatively easy to install if you have planned your layout accurately and have a solid timber frame as a base. The deck boards fit to the frame using specific fasteners and screws. You will need to acclimatise your boards on site for at least 72 hours prior to installation.
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 screw hollow composite decking?
You can not drill or screw through a hollow composite deck as the screw will become loose and rise in time . Like the usual wooden decking boards, you can also screw down a solid composite decking.
How do you finish composite decking edges?
Composite decking ends can be finished by picture framing, raised fascia board, painting the ends, attaching decking veneer, composite nosing strips, vinyl stair nosing cove, composite corner trim or plastic end caps. In short composite decking, ends must be hidden or blended into the look of the decking boards.
Does composite decking need spacing?
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. Composite decking can be fastened to treated wood joists with screws or with hidden fasteners.
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.
Why do you 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.
