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A board that has been planed so that it is smooth on one side. The rough side of the S1S board may also be used as the exposed side.


A board that has been planed so that it is smooth on all four sides.


A term that refers to a type of siding that has been worked or rabbeted on both edges of one piece to provide a close lapped joint by fitting two pieces together.


A term that refers to an uneven edge to the butt edge of the bevel.

Smooth Face Cedar Bevel
Smooth Face Cedar Bevel
Smooth Face (SF)

A board that has been planed so that it is smooth on the side to be exposed.

See also
Square (Shingles)

A measure of shingles wherein 100 square feet will be covered at a 5" exposure and 120 square feet will be covered at 6" exposure. There are four bundles to a square.

Stained Breckenridge Plywood
Stained Breckenridge

Lakeside Lumber’s ability to stain on site affords you the flexiblity of staining your material with any product you select. Our team of experts are also available for consultation regarding the entire staining process.

Learn more about our staining and priming process.

Messmers U.V. Plus colors on Cedar, Pine & Redwood

See also:
Surfactant bleed
Surfactant bleed
Surfactant Bleed

Surfactants are a detergent-like material contained in all latex paints. Surfactants are normally removed slowly from surfaces coated with latex paints with the washing action of rain. However, under certain environmental conditions (e.g. dew, fog and rain) present during and shortly after paint application, this process can occur rapidly, causing a buildup of light colored crystalline deposits, or soft white, brown or clear spots on the freshly painted surface.

Learn more about surfactant bleed.

Tannin Stain
Tannin Stain
Tannin Stain

These reddish brown stains may appear in several forms. "Diffused" discoloration can result from rain or dew penetration through the finish whereas "rundown" discoloration typically results when water collects on an unfinished surface, such as the back of siding or unprimed ends of boards. Water-based finishes can also dissolve extractives and cause discoloration as a result.

Learn more about tannin stain.

Alaskan Yellow Cedar Tight Knot Ultra Deck
Alaskan Yellow Cedar Tight Knot Ultra Deck
Tight Knot (TK)

Knots are a portion of a branch or limb that has been incorporated into a board. A Tight Knot is a knot so fixed by growth, shape or position that it retains its place in the board.

Tongue and Groove Side View
Tongue and Groove
Side View

A type of siding in which a projecting rib on the edge of one board fits into a groove in the edge of an adjacent board. Tongue and Groove is commonly used for siding and ceilings.

See also:

  cross section of log showing difference between flat and vertical grain
Clear, Flat-Grain Cedar
Vertical Grain Cedar
Face View
Vertical Grain (VG)

Lumber that is sawn at approximately right angles to the annual growth rings so that the rings form an angle of 45% or more with the surface of the board.

Vertical grain boards are more stable, are less likely to warp or shrink and tend to hold paint better than flat grain boards.

See also:




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