The answer is both. You should use nails to attach the deck’s joists and stair stringers to its framing. You should use screws to attach decking and railings to the framing.
Are stair stringers 2×10 or 2×12?
It is acceptable and within building code guidelines to use either 2×10 or 2×12 dimensional lumber to create a set of stairs; however, a stair stringer should not be less than 3.5 inches wide at its narrowest point to provide adequate strength for the load the stairs will be supporting.
Is it better to nail or screw a deck?
For the decking boards, many agree that screws perform better than nails. They have better tensile strength and will less likely to pop out, which is a common problem in decking. Many also agree that nails are better used for the frame of the decking.
Are nails or screws better for a deck?
Decking screws are better than nails when building a deck. Decking screws hold down your decking more securely than nails and will stop your decking from warping. Also, you can easily remove screws for deck maintenance without causing damage.
Should you nail or screw a deck?
Screws are superior for laying down the decking. They hold things flush better and have a better fastener/tensile strength, which keeps boards from popping up over time. However, unless you use more expensive structural screws you need to use nails for structural elements and joists.
Do stair stringers need support?
Yes, the stringers need to be supported along their length, but they can span a few feet too, depending on 1) the width of the stairs, 2) the number of stringers, and 3) size of riser board. 1) The wider the stair the more load will be transferred to the stringers.
How do you install stair stringers?
Step-by-step
Clamp a guide to the square. Find the crown. Lay out the first tread and the second riser. Lay out the second tread and the third riser. Mark the back of the top tread. Mark the plumb cut at the top of the stringer. Lay out the bottom riser. Adjust the first riser height.
Do you screw decking at every joist?
Each deck board should be fastened with two screws at each point where the board crosses a joist to ensure the stability and durability of your deck’s surface. Boards should be fastened to rim joists with three screws.
Do you need to pre drill for deck screws?
Deck screws installed in the field, not close to the board’s end or edge, need not be predrilled. Predrilling is required near the end of deck boards to make room for the screw. As the screw is acting like a wedge, driving between the wood fibres. That screw pushes against the decking, splitting open the board.
Do you leave a gap between decking boards?
Determining Deck Board Spacing
When using wood decking, you want a gap of at least 1/8 of an inch after your decking has dried out. If you’re using decking that’s already been dried out, you can leave a 1/8-inch gap when you install. Many decks will use “green” wood, or wood that hasn’t been dried down or kiln dried.
