Asked by: Dembo Palinhos
hobbies and interests woodworking

What is tongue and groove flooring?

Last Updated: 11th June, 2020

Tongue and groove is a method of fitting similar objects together, edge to edge, used mainly with wood, in flooring, parquetry, panelling, and similar constructions. Tongue and groove joints allow two flat pieces to be joined strongly together to make a single flat surface.

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In this manner, does flooring have to be tongue and groove?

Although tongue and groove solid hardwood flooring does fit together, it must still be nailed to a subfloor. Engineered tongue and groove planks, however, snap together to create a “floating” floor that is not physically attached to the floor below.

what does tongue and groove flooring look like? Tongue-and-groove flooring is made up of individual boards with special interlocking edges that are hidden once the boards are installed in the finished surface. Each piece has a tongue (a continuous ridge or tab) along one side and one end of the board and a groove (a channel) along the other side edge and end.

Keeping this in consideration, do you nail 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 is the difference between shiplap and tongue and groove?

Tongue and groove and shiplap cladding do look very similar once installed. The main difference between them is a longer lip on shiplap cladding, which acts as an additional layer of protection against moisture and rainfall. Because of this, shiplap cladding offers optimum rainwater resistance.

Related Question Answers

Heriberta Yehuda


How much does it cost to install tongue and groove flooring?

Cost to Install Prefinished Hardwood Flooring
Prefinished Hardwood Flooring Costs Zip Code
Basic Best
Prefinished Hardwood Flooring – Labor Cost $105.00 - $110.00 $165.00 - $175.00
Prefinished Hardwood Flooring – Total $495.00 - $530.00 $750.00 - $850.00
Prefinished Hardwood Flooring – Total Average Cost per square Foot $5.13 $8.00

Maritxu Crone


Which side of laminate goes against the wall?

The tongue is the side that you will want to place against the wall as you start your laminate-flooring installation.

Sarina Doon


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.

Yoan Raj


Can you float a tongue and groove floor?

How does a traditional tongue-and-groove floating floor work? You can turn these into a floating floor by applying a bead of glue in the groove, and then inserting the tongue of the next board. You still don't need an adhesive to glue the boards down to the subfloor — the glue is only required to connect the boards.

Cathryn Haymann


Is a moisture barrier necessary for laminate flooring?

When a laminate floor is installed over a concrete subfloor a moisture barrier must be used. Most every laminate manufacturer will require a vapor barrier under laminate flooring.

Azman Helle


What kind of nails do you use for tongue and groove?

Drive the nails through the shoulder of the tongues into the framing at about a 45-degree angle. The next grooved edge will hide the nail holes. A 15- or 16-gauge brad nailer with 2-in. nails is the best choice for fastening, although an 18-gauge nailer will do the job, too.

Silviu Spalkhaver


Do you have to cut the tongue of 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.

Bastiaan Molochkov


Should I glue tongue and groove boards?

Subfloor preparation is more critical for a floating engineered floor than for a staple or glue down application, the floor must be flat to 1/8 inch in 10 feet. The recommended glue for floating installation is Tongue and Groove engineered flooring glue. Glue placement is very important.

Satpal Rohatsevich


Can I use roofing felt under hardwood flooring?

Staple or Nail Down Installation
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 for flooring installations over wood subfloors looks a lot like roofing paper, but it is very different.

Wahida Chair


Where do you start when laying hardwood floors?

Start Installation
Start the installation at the longest unobstructed wall. Remove the shoe molding, and snap a chalk line 3/8" out from the baseboard (this allows for expansion in the hot, humid weather and contraction in the colder, drier weather of the hardwood flooring).

Houssein Loira


How do you start the first row of hardwood floors?

Begin by selecting a long board to start the first row. Pick one that is straight. Align the edge of the board with the chalk line and drill pilot holes down through the hardwood plank and into the sub-floor and joist. Face-nail each board at the point of every joist and set the nail with a nail-set.

Nikolai Matejka


What is blind nailing?

If you've never heard the term blind nailing, you're probably wondering what exactly it means. Blind nailing is setting a nail into the hardwood flooring board at a 45 degree angle, just above the tongue of the board and driven down into the joist or subfloor surface.

Mareike Hirsh


Which side is tongue and groove?

Each laminate flooring plank contains a tongue and groove, these edges of the board cause your locking system to click together. The tongue on laminate flooring is the small flat edge on one side of the board, this is the top edge that is going to angle and lock into the bottom side of another board.

Arcadio Zoref


How can I make my tongue and groove tight?

If the tongue and groove fit is slightly tight, fold a piece of sand paper over the tongue and run it up and down a few times. Follow this by brushing off the excess dust. This will often ease the fit causing fewer difficulties.

Emelinda Ruel


Do I need tongue and groove subfloor?

For subflooring, you use tongue and groove plywood. The tongue and groove are only along the 8 foot edges. On the four foot edges, your seams will fall on joist tops, so no need for tongue and groove.