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The Daily Insight

How does floor nailer work

Author

Mia Morrison

Published Apr 01, 2026

A flooring nailer allows you to make quick work of the tedious and tiring task of nailing down hardwood flooring, while also inserting the nail cleat at a perfect 45 degree angle. A flooring nailer is not an automatic or trigger powered nail gun. It requires a strike with a rubber mallet in order to set the nail.

How does a wood floor nailer work?

A flooring nailer allows you to make quick work of the tedious and tiring task of nailing down hardwood flooring, while also inserting the nail cleat at a perfect 45 degree angle. A flooring nailer is not an automatic or trigger powered nail gun. It requires a strike with a rubber mallet in order to set the nail.

Do you nail into the tongue or groove?

For tongue-and-groove flooring, drive a nail at a 45-degree angle through the tongue, then conceal it by engaging the groove of the next board. Be sure to countersink the nail — drive it slightly below the surface of the wood — to prevent interference in the joint.

What nail gun should I use for flooring?

One of the best nailers to use to install a hardwood floor is a pneumatic flooring nailer or stapler. Made specifically to fit over the top edge of the plank and the tongue, this nailer shoots a headless nail through the tongue and into the subfloor or the floor joist beneath.

Can I use nail gun for subfloor?

Combining the versatility of a nail with the hold strength of a screw, they can be used with most framing nailers – meaning these subfloor fasteners can be driven much faster than screws. … Nail Gun Depot offers nails, screws and Scrails, as well as specifications for all of our subfloor fasteners.

What gauge are flooring nails?

The two gauges of nails typically used for hardwood floors are 16- and 18-gauge. The higher the gauge number, the thinner the nail. Use the specific gauge of nail recommended by the manufacturer for your floor. This will depend on the hardness of the wood, its thickness and whether it is solid or engineered.

Does nail down flooring need underlayment?

With a staple down or nail down installation over a wood subfloor using solid flooring or engineered flooring, it is recommended that an underlayment of 15lb. black felt paper is rolled out over the wood subfloor prior to installing the new floor.

Can you secret nail through the groove?

A secret nail installation is completely discreet, with the fixings attached to the tongue of the floorboards being entirely covered by the adjacent board’s groove. It’s a fairly quick process to nail your flooring, and even quicker if you use screws.

How close do you nail hardwood floor?

The nail spacing schedule varies by board type but you always nail down the ends of each board and space nails between 6, 8, or 10 inches apart. Always read and follow the flooring manufacturers guide and recommendations.

Can you install tongue and groove backwards?

Generally speaking, you can install any type of vinyl plank flooring backward. … It may still be possible to install laminate flooring from other manufacturers in reverse, but you need to be cautious that you don’t damage the tongue and groove while doing so.

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Can you nail hardwood floor on the groove side?

To nail the groove, you must nail by hand, but you have a very small space in which to work. In addition, you must countersink every nail to avoid interfering with the tongue of the next plank. For most applications, this isn’t feasible or desirable.

Is it better to nail or screw floorboards?

If you want to have access to wiring and pipework through your floor, screws again are the way to go. Another great advantage is the fact that screws will pull the boards down better than any nails and hold without popping out. The tighter grip they provide makes screws the superior long term solution.

Is it better to nail or screw plywood?

Do You Screw Or Nail Plywood? Answer: It is better to use screws on plywood instead of nails. Screws are more suitable for the soft plywood blocks since they can be removed more easily and do not cause splintering. You don’t have to worry about splitting the wood by using screws.

Are screws better than nails for subfloor?

Between using nails or screws to put down a subfloor, screws are more durable and have the capacity to stay and hold longer than nails. For instance, the smaller threads on a ring shank nail can come loose in a plywood subflooring panel.

Do hardwood floor nails go through subfloor?

You can use nails, also known as cleats, or staples on both types. … Because of the necessity of a vapor barrier, it is important to use only the recommended length of nails and staples so that they just grab into the subfloor. You do not want to go through the subfloor and puncture the vapor barrier.

Do you have to nail engineered hardwood?

Engineered hardwood floors can be glued or nailed into position, but they also have the option of being floated over an underlay. … However, if you are planning on fitting your hardwood floor to joists, then you will need to secret nail them into place.

Do you need wax paper under hardwood?

Waxed Paper Roll is recommended for the installation of hardwood and engineered nail-down flooring. The wax paper provides a professional grade thickness and performance to help ease the installation and reduce squeaks in wood floors.

How long should flooring nails be?

A good rule of thumb for nail length is 1 1/2-inch nails for 1/2-inch-thick flooring, and 1 3/4-inch nails for 3/4-inch-thick flooring. Always follow the flooring manufacturer’s recommendation, however.

Can I use a brad nailer to install hardwood flooring?

A brad nailer is one way to install engineered hardwood. … A flooring nailer is the preferred method for attaching flooring, but a brad nailer, used correctly, runs a close second. Shooting at the right angle and choosing the correct nails are the main keys.

Can you use 15 gauge nails for hardwood floors?

While the 15-gauge guns do usually fire like a cannon, a 16-gauge still recesses the nail heads 1/16- or 1/32-inch through hardwood, which is entirely adequate for a floor installation.

How do you blind nail hardwood floors?

Blind-nailing. To blind-nail use either a finish nailer or drill pilot holes at a 45-degree angle through the tongue of each board and hand-nail the planks until there is enough clearance for the pneumatic floor nailer to fit over the tongue of the hardwood floor planks.

How do you cut the tongue off of a hardwood floor?

To remove the tongue and grove from hardwood flooring, I would use a tablesaw with a ripsaw blade or comination blade. If the lumber is straight and of equal widths, set the fence so that blade will just remove the tongue. Saw off tongues from all of the boards.

How do you nail down the first row of hardwood floors?

Nail Down the First Row of Flooring Position your first board so its edge is up against the chalk line. Then, use a nail gun to secure it in place. Continue laying and nailing boards parallel to the starting line until your first row is finished. We recommend using 2-inch flooring cleats or 2-inch staples.

Should I glue tongue and groove?

Don’t Glue Tongue and Grooves This is because wood flooring needs room to move as it expands. If the wood is glued both to the subfloor and between the planks, there’s no room for movement. In the long-run, limited movement leads to cracks, disfigurement and warping of your wood flooring.

Why do floating floors fail?

The most common cause of peaking is no expansion in your floating floor between the walls/vertical surfaces, or the overzealous use of water. This “expansion gap” allows for the entire floor to expand/contract in situations of changeable weather conditions, for example when it is raining or when the weather is warm.

Which direction should bathroom flooring be laid?

The vinyl plank flooring boards should lay parallel to the longest run of the room. For instance, if the space is 5-feet-by-8-feet, the boards should run along the 8-foot wall. This layout will look best. Start on the left side of the room and work right.

Do you cut the tongue off the first row of laminate?

Place the first plank with the tongue side towards the wall, being sure to allow 1/8″ for expansion. We recommend cutting off the tongue on this first row to avoid any problem with the expansion gap. … If it is too short, cut a new plank in half and use one half to start the second row.

What part of the room should you start laminate flooring?

Always start hardwood flooring along the most prominent and noticeable wall in the room. This way, if the room is out of square, the crooked cut will be hidden under the cabinet’s toe kick. In order to keep the floor straight and square, start laying the laminate away from the wall because the wall may not be straight.

What is the tongue side of hardwood flooring?

Tongue and groove flooring has a tongue side that sticks out and a receiving groove side that is indented. Each floor board can slide into place because the tongue side can slide into the groove side. This allows a simple vertical movement to slide your floor boards together and into place during installation.

How tight should tongue and groove be?

All it takes is 1⁄8″. The joint should be a firm press fit: If you have to knock the pieces together, then struggle to pull them apart, the joint’s too tight. A tongue that’s a hair too fat for the groove may actually seat, but it will stress the groove sidewalls and may, in time, prompt them to split.

Can you install hardwood backwards?

Yes, they will move unless you place some temporary scrap backer boards behind it. … You could just as easily use some decking screws to attach the scraps, but they generally do not go in well without (they split) pre-drilling through the hardwood.