Decking: Fasten 5/4 decking with 21/2-inch coated screws or 12d ringshank or spiral nails.
What length screws should I use for decking?
Most decking screws are 8-gauge and, while 2 1/2 inches is the minimum length needed to hold decking boards to the joists, 3-inch screws are commonly used to provide extra holding power against the upward pressure of shrinking or warping boards. Specialty decking materials have different requirements.
How far apart should 5 4 deck boards be?
For 5/4 pressure treated decking, it should be installed tight and allowed to shrink to provide water drainage. With cedar 5/4 decking installation should be with 1/16″-1/8″ gap (2-3mm), which will expand to 1/8-1/4″ (3-6mm) once the wood has dried.
What size screws do I need?
The general rule of thumb is that the screw should enter at least half the thickness of the bottom material, e.g. 3/4″ into a 2 x 4. The other factor is the screw’s diameter, or gauge. Screws come in gauges 2 through 16. Most of the time you’ll want to go with a #8 screw.
Can I use 2×6 for decking?
2×6 joists should only be used on ground-level decks that do not require, and will not provide for, any guards. … Most decking is not strong enough to support longer spans than 16″. Some builders reduce joist spacing to 12″ on center to strengthen the deck frame or to increase maximum allowable joist spans.
Should I put my deck boards tight together?
There is no reason to put a gap between the ends (also known as butt ends or butt joints) of wood deck boards. Wood, both softwood and hardwood, is dimensionally stable in length regardless of temperature, humidity or moisture content. Keep the butt ends as tight as possible when installing wood decking.
How long should deck boards dry before installing?
The proper way to acclimate wood is to let it sit in the area where it will be built for a period of at least 7 days. Depending on your climate, and the time of year you install your deck, this acclimation period can be anywhere between 7 – 14 days. Never let your wood sit directly on top of the ground or concrete.
How much gap do you need between pressure treated decks?
Proper deck board spacing should have a 1/8-inch gap after the decking has dried out. If you install your decking using wet boards, pressure-treated decking that has not yet dried out, then you should install them with no gap as a gap will be created as they dry and shrink.
What is the correct way to lay decking boards?
If your decking is laid ridge-side up, the chances are you’ve got it the wrong way round. The correct way to lay decking boards for most decking is smooth-side-up, with the ridges there to prevent rot and mould.
How far can a 2×6 decking span without support?
The codes call for nominally 2” thick decking or other approved span-rated decking. 2x6s are 1/2″ thicker and thus stronger than 5/4×6 and can span up to 24” O.C.
Should I use deck boards or 2×6?
2×6 is thicker and is stronger, but is also more expensive. Spacing between deck boards provide a few critical functions. The primary function is to drain water from the deck. Gaps that are narrow (1/8”), can catch debris, specifically on top of the joists, and can be difficult to clean out.
What size is a number 4 screw?
As a handy coincidence, the Gauge (imperial) roughly equals the screw head size in millimetres. A 4 gauge screw will have a head that is approximately 4mm wide.
How long should screws be for 4×4?
The most common screw for joining two-by-fours is hardened steel, structural, No. 9, 2 1/2 inches long with a Phillips head. Other screw types appropriate for studs are specialized and may be harder to find and more expensive. It’s important that the screw is designated as a structural screw or a deck screw.
How far should screw go into stud?
A hole in a stud can be 1 1/4 inches from the edge of the wood. That means you have a minimum of 1 1/4 of wood to drill into safely. Any less than that and a nail plate is used to protect the wires or pipes.