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T&G Siding

The term pattern sidings describes a variety of siding products in which the board has been machined on the edge(s) and face(s) to produce siding with interlocking or overlapping joints and with smooth surfaced or rough sawn faces. These sidings fall into two broad groups: tongue & groove or lap.

Tongue & Groove

Clear T&G SidingWestern Red Cedar tongue and groove is widely used for its good looks and versatility. It can be installed horizontally, vertically or diagonally, each method giving a distinctly different look. Tongue and groove siding is available with rough or smooth faces. Both seasoned (kiln-dried) and unseasoned (green) sidings are available.

The joints between adjoining pieces are usually v-shaped or flush jointed, reveal and radius joints are also available.The different joints and surface textures in tongue and groove siding combine to provide a range of shadow line effects that enhance the product´┐Żs versatility.

Tongue and groove siding is manufactured in clear grades suitable for a more formal, elegant appearance, particularly when pieces are smooth faced. Knotty grades are in demand for their smart, casual look.

Typically when we think of Siding we think of exterior applications, but Tongue & Groove is used quite extensively indoors as well.

Tongue & Groove Patterns

Common Tongue & Groove patterns are EV1S, EV2S and S2S.Tongue & Groove comes in a wide variety of patterns. The most common are EV2S, EV1S and S2S. Other common descriptions are V2E (EV1S), V4E (EV2S) and Center Match (S2S).


Coverage table for Cedar Tongue & GrooveT&G coverage is close to the nominal board width minus the actual "tongue" and "groove".

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