Wood terms beginning with:


Face - The wide surface of a piece of lumber; the wide surface showing the better quality or appearance from which a piece is graded.

Face-side - The wide surface used in grading showing the better quality or appearance.

Face-width - The width of the face of any piece of lumber; in tongued or lapped (rabbeted) lumber, it does not include width of tongue or lap.

Feather crotch figure - Figure resembling a cluster of feathers that is commonly found in the segment where a fork or crotch in the tree occurs. An alternate name is "flame figure"

Fiddleback-grained wood - Figure produced by a type of fine wavy grain found, for example, in species of maple; such wood being traditionally used for the backs of violins.

Figure - A distinctive pattern in wood created by its grain, annual rings, medullary and color variations (or deviation from regular, straight or symmetrical grain patterns). Types of figure includes: bear claw, birds-eye, burl, crotch, flame, fiddleback, curly, quilted, and ribbon stripe.

Finger-joint - Pieces of lumber machined on the ends and bonded together with glue. The joint is similar to slipping the fingers of two hands together. Also called end-joint or glue-joint.

Finish - Coatings of varnish, lacquer, wax, etc., applied to wood surfaces to protect and enhance their durability or appearance.

Finishing - The process of applying a finish to wood. Often includes multiple stages of sanding prior to application of a finish.

Finishing characteristics - Terminology to indicate how well the wood accepts a clear finish. Open-grained woods generally finish better than woods with large gum or resin deposits.

Poor: Does not finish well, some conditioning needed.
Fair: Average finishing qualities.
Good: Fairly easy to finish.
Excellent: Extremely easy to finish.

Finish lumber - A term indicating the higher grades of lumber, sound, relatively free of blemishes.

Finished size - The net dimensions after surfacing.

First and Seconds (FAS) - The top grade for hardwoods.

Flame figure - A grain pattern resembling flames which is commonly found in the wood in the area where two limbs diverge (a crotch or fork). An alternative name is Feather crotch figure.

Flat-grained wood - Lumber that has been sawed parallel to the pith and approximately tangent to the growth rings. Lumber is considered flat grained when the annual growth rings make an angle of less than 45° with the surface of the piece (also known as plain-sawn or slash-grain lumber).

Flitch - (1) A thick piece of lumber with or without wane (bark) on one or more edges suitable for remanufacturing. (2) A portion of a log sawn on two or more faces - commonly on opposite faces leaving two waney edges. When intended for resawing into lumber, it is resawn parallel to its original wide faces. Or, it may be sliced or sawn into veneer, in which case the resulting sheets of veneer laid together in the sequence of cutting are called a flitch. The term is loosely used. Synonymous with "cant".

Flooring - A lumber pattern with smooth face and tongue and groove edges.

FOG Wood – “Found on ground” - Wood of convenience, commonly unidentified and used when you have nothing better to use!

Foot - A unit of lineal measurement usually used to indicate the length of lumber.

Free water - Moisture found in the cell cavities of wood.

Full-cut lumber - Lumber that in thickness and width measures fully up to specified sizes: a term sometimes confused with "cut-full" lumber, the latter meaning lumber intentionally manufactured in larger than nominal thickness and width.

Fungus stain - Lumber stain caused by fungus growth in wood: fungi can be either of the sapwood-staining or decay-producing types.

The Wood Glossary

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