Question: Should You Nail Or Screw Subfloor?

Using code-approved screws rather than nails is the best option for avoiding movement. If using nails for subfloor installation, stick with ring-shank nails; smooth nails may withdraw easier, leading to squeaks.

Should you screw down a subfloor?

Ideally, nail down your subfloor using corrosion-resistant nails that will securely hold it in place and last a long time. Screws are a great alternative that you can easily remove, but they are not as sturdy. Screws are superior in terms of reducing floor squeaks, but the installation is slower.

Can you screw in subfloor?

The 3/4-inch-thick subfloor takes a 2-inch screw. A thicker subfloor takes a 3-inch screw. Use a heavy-duty drill to drive Phillips head wood screws through the subfloor into the floor joists. To make the job easier for you and the drill, we suggest that you pre-drill holes before screwing the subfloor down.

Should floor boards be screwed or nailed?

To reiterate: you must never nail or screw down loose floorboards without finding out exactly what’s beneath them first! You can use an electronic pipe and cable detector for this, but -given the number of nails down there – it’s easier to lift the floorboards and take a look than rely on confused electronic readings.

Can you screw down plywood subfloor?

Most construction experts use 3-inch steel screws for plywood subfloors. So if your subfloor is 3/4 of an inch thick, any screw about 1 3/4 inches long will do the trick. If the plywood subfloor you’re placing is 5/8 of an inch thick, you need a screw about 1 5/8 inches long.

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What nails should I use for subfloor?

If using nails for subfloor installation, stick with ring-shank nails; smooth nails may withdraw easier, leading to squeaks.

How far apart should screws be on subfloor?

Generally, nails (6d ring or screw shank, or 8d common) should be spaced 6 inches on center along supported panel edges and 12 inches on center on the panels’ interior supports, or as specified on the construction drawings.

What nails should I use for floorboards?

Put the new board into position and secure it with 50mm of cut floor brads or ring-shanked nails, taking care to avoid existing holes in the joists. Then drill pilot holes for the nails, which stop any splitting. You could use 50mm countersunk screws (4mm or 5mm gauge) instead.

How do you screw down loose floorboards?

Preparation

  1. Inspect the floor for any nail or screw heads that have raised up.
  2. Remove any raised nails with the hammer.
  3. Drill new 2-inch wood screws completely into the empty holes to replace any removed nails or screws.
  4. Cover the screw heads with wood filler.
  5. Identify the loose floorboard by stepping on it.

Is it better to use OSB or plywood for subfloor?

The National Tile Contractors Association and the Resilient Floor Covering Institute both recommend plywood for subflooring and underlayment, because it doesn’t have the risk of swollen edges that OSB does. Plywood also has a slight advantage in stiffness, which means that subflooring panels need not be quite as thick.