Custom Flat Tongue-and-Groove Wood Wall Boards

Flat solid-wood boards form a continuous interior wall face with interlocking side edges. Compare the selected board and joint dimensions, installed face pitch, oak and pine choices, end joints and the parts needed for the wall layout.

Board construction
Flat solid wood / side T&G
Custom T&G wall boards
Selected solid oak flat-face wall boards with the scheduled T&G profile and clear finish
Selected face pitch
150 mm dry fit
Board wood Oak boards

Flat Solid-Wood Boards & Tongue-and-Groove Edges

A Flat Face on a Solid-Wood Wall Board

The selected board has a smooth flat face, an 18 mm machined timber body and a 2400 mm square-end length. It is solid wood through the board, with a plain face and no veneer, plywood core or ribs. The wall can run vertically or horizontally when the support and end-joint layout are specified for that direction.

A 6 mm Tongue and an Opposite Grooved Edge

The selected side profile uses a 6 mm tongue projection with a 4 mm tongue thickness centered in the 18 mm body. The opposite edge has a 7 mm-deep, 4.5 mm-high groove. At the selected fully engaged dry fit, the tongue has 1 mm root clearance and 0.5 mm total vertical clearance. The machined profile and finish are checked together on a mating sample before the board run is produced.

150 mm Installed Pitch versus 156 mm Loose Width

The face pitch is 150 mm when adjacent profiles are fully engaged in the selected dry fit. The loose board measures 156 mm across the body and projecting tongue. Those two widths serve different purposes: 156 mm is the profile envelope, while 150 mm is the starting face pitch for the wall layout. Any specified installation or movement gap is added to that layout as its own allowance.

Board face pitch and true side profile distinguish the 18 mm body, 6 mm tongue projection and opposite groove

Oak and Pine Wall Boards, Grain & Surface Finish

Oak and pine options with plain flat faces and the same edge-joint arrangement

Oak or Pine in the Same Flat-Board Profile

Oak and pine are two solid wood selections for this wall-board construction. The order records the actual species, grade, face range and accepted finish. Pine knot selection and oak grain appearance are reviewed on samples; they are not made uniform simply by choosing a clear coat.

Lengthwise Grain and a Numbered Board Layout

The selected visual direction follows the grain along the board length. A consistent face range, mixed natural boards or a more deliberate sequence can be scheduled for the wall. End cuts, partial-width boards and pieces beside openings are marked so the installation does not mix finished lengths with offcuts.

Clear Finish and Mating Edge Fit

Clear finish is the selected surface direction, with sheen and coating reference agreed by sample. Finish on the tongue and groove can change the mating fit, so the completed profile is test-fitted after coating and never forced into a tight joint. Exposed cut ends, returns and trims receive their scheduled edge finish.

Selected T&G Wall-Board Sizes & Joint Profile

Board configurationCustom solid wood flat-face wall board with side tongue/groove and square ends; dry interior wall facing.
Board woodSelected solid oak flat-face wall boards with the scheduled T&G profile and clear finish
Selected size and face pitch2400 mm square-end length; 18 mm machined body; 150 mm fully engaged dry-fit face pitch. Loose profile width 156 mm including 6 mm tongue; finished mating fit by sample.
Selected side jointCentered 4 mm-thick tongue projects 6 mm; opposite groove 7 mm deep × 4.5 mm high. Dry-fit root allowance 1 mm and total vertical allowance 0.5 mm; actual finishing/machining checked together.
Setout and board endsEight 150 mm pitches = 1200 mm facing before perimeter/movement allowances. No end matching; butt joints land on support. Cut pieces and final quantities by elevation.
Finish and fixingActual species/grade/face range, clear finish and completed mating sample agreed. Wall, battens, orientation and timber movement determine fixing and perimeter detail.
SupplyBoards by finished length/quantity and accepted profile; trims, cut pieces, samples, fixing/support parts, packing, freight and installation each scheduled.
Minimum orderSupplied in full packing units from one production batch, rounded up from your area. Small lots can ship with the rest of your project list in one container.
Standards & certificatesMatched to the ordered model: tell us the standards or certificates your market or project requires, and we confirm in writing which documents are available for this configuration before you order.
Selected 2400 mm long boards: 150 mm engaged face pitch, 156 mm loose width including 6 mm tongue; 18 mm body and opposite 7 mm groove Open product drawing ↗

Installed Face Width, Board Ends & Wall Support

Board Pitch and the Width of the Wall

Eight 150 mm engaged pitches give a 1200 mm facing width before perimeter and movement allowances. The 156 mm loose profile width is not used as installed coverage. Final quantities also allow for the measured wall, support landings, openings, cut widths and the accepted installation joint detail.

Square Ends and Supported Butt Joints

The selected 2400 mm boards have square ends, without end tongues or end grooves. Any butt joint between lengths lands on an agreed support and follows the elevation. Staggered ends, base terminations, ceiling returns and outside corners are shown with their actual trims; the side T&G profile does not turn an unsupported end joint into a connection.

Dry Interior Walls and Timber Movement

This selected solid wood profile is for dry interior wall facing. The timber, room conditions and support wall are checked together, with acclimation, fixing and perimeter movement allowances set for the actual species and installation.

Tongue-and-Groove Wood Paneling Cost & Supply

Species, Grade and Finished Lengths

Wood species, face grade and the quantity of full-length versus cut boards affect the material schedule. Knot selection and a narrow visual range can change sorting requirements. The quote lists actual lengths and pieces instead of treating every wall as the same square-meter order.

Profile Machining and Joint Samples

The selected tongue/groove geometry, mating sample and finishing detail belong to one machining specification. A different tongue size, reveal or body thickness is priced as a revised profile. Side matching and end matching are separate operations; end matching is not included in this square-end selection.

Trims, Support Parts and Service Openings

Perimeter trims, outside returns and cut pieces beside outlets are scheduled with the board run. Battens, fixing parts and backing work follow the actual wall and board orientation. Our quote identifies which support parts are supplied and which are installed locally.

Finish Approval, Packing and Installation

The accepted wood and finish sample, board labels and packing protect the long edges during transport. Freight follows the final lengths, quantity and destination. Wall preparation, site cuts, fixing and installation are individually assigned in the project quotation. Tell us the rooms and quantities and we will put this on one quote with everything else you are ordering, and show you what fits in a container.

T&G Wood Wall-Board Quote Schedule

Wood boards
Actual timber species, grade, lengths, piece counts, flat-face profile and accepted finish.
Joint and edge work
Mating profile sample, square end cuts, cut-width boards, corners and perimeter trims.
Support and fixing
The agreed battens, backing and fixing parts; local wall preparation and support installation stated as site work.
Packing and delivery
Long-edge protection, labeled board list and freight; site cuts and installation responsibilities individually assigned.

Tongue-and-Groove Wood Wall-Board FAQs

How is this board different from a wood grille panel?

It has a broad flat solid wood face and interlocking side edges. It does not use multiple projecting ribs or open grille slots. The profile drawing shows the interlocking side edges and flat face.

Which width is used for installed coverage?

The selected starting face pitch is 150 mm when the profiles are fully engaged in a dry mating sample. The 156 mm loose width includes the 6 mm projecting tongue, so installed coverage is the 150 mm pitch. Any specified movement or installation gap is allowed for on top.

What tongue-and-groove dimensions are selected?

The selected 18 mm body has a centered 4 mm-thick tongue projecting 6 mm. Its matching groove is 7 mm deep and 4.5 mm high. That leaves 1 mm at the root and 0.5 mm total vertical clearance at the selected dry fit; final coated fit is checked on a mating sample.

Are the board ends also tongue and groove?

No. The selected 2400 mm board has square ends. Length-to-length butt joints require their own support and layout. End matching can be a separate profile request, with its own dimensions and quotation.

Can the boards run horizontally as well as vertically?

Yes, with a support and joint layout for the chosen direction. Board ends, fixings, corners and service openings change with the orientation. The wall elevation identifies the direction and the actual cut pieces before the order is finalized.

Can these boards be used as flooring or exterior siding?

This selection is for dry interior wall facing. Flooring, exterior siding and wet-area lining have different wear, moisture, fixing and performance requirements. Those uses call for a complete product specified for them.

Request a Wood Wall-Paneling Quote

Eight smooth flat oak wall boards with fine vertical seams and full-length natural grain
Custom Flat Tongue-and-Groove Wood Wall BoardsOak boards
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Custom Flat Tongue-and-Groove Wood Wall BoardsRequest a Quote