end grain
Woodipedia Index
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Wood Terms that Start with "E"

Lumber Glossary Term Definition
E

Edge

E&CB2S

Edge & Center Bead Two Sides

E&CV1S

Edge & Center V One Side

E&CV2S

Edge & Center V Two Sides

Earned Harvest

A timber management concept used by the USDA Forest Service. This allows the timber manager an immediate increase in the allowable cut when the manager applies intensive management techniques that will accelerate future timber growth.

Early Wood (Springwood)

The first part of the trees’ rings to form after winter hibernation. Earlywood is often characterized by larger cells and a lower density.

Eased Edges (EE)

Slightly rounded surfacing on pieces of lumber to remove sharp corners. Lumber 4 inches or less in thickness is frequently shipped with eased edges unless otherwise specified.

Easement

A legal right for restricted use of property by the easement holder. Easements are granted to utility companies so they may service the utility lines running through a property. Decks should not be built on the area described by an easement because access granted by the easement may require the deck to be torn down or removed.

EB1S

Edge bead one side.

EB2S

Edge bead two sides.

Ecology

The study of animals and plants in relation to their biological and physical surroundings.

Ecosystem

Complex ecological community and environment forming a functional whole in nature.

Edge

The narrow face of a rectangular-shaped piece of lumber.

Edge Banding

Veneer that usually has an adhesive to stick to plywood edging.

Edge Grain

Lumber sawed parallel with the pith of the log and approximately at right angles to the growth rings; that is, the rings form an angle of 45 degrees or more with the wide face if the piece.

Edge Guide

A straightedge that is used to guide tools, such as a circular saw or router, along a work-piece.

Edge Joining

Smoothing and squaring the edge of a board so that it can be glued up evenly to another piece.

Edge Trimmer

Tool used to trim edge banding.

EE

Eased Edges

EG

Edge (vertical) Grain

Elasticity

A property of a material that causes it to return to its original dimensions after being deformed by loading.

Elastomer

A macromolecular material that, at room temperature, is deformed by application of a relatively low force and is capable of recovering substantially in size and shape after removal of the force.

Elbow

In a dust collection system, a fitting used to torn corners.

Electron Beam Welding

A metal joining process that uses a narrow stream of electrons to produce a highly concentrated heat source.

Elevated Deck

A deck requiring a structure of beams, footings, and posts to raise it to the desired level. Often used so that the height of the deck is the same as interior floors, making access to the deck from the house easier.

EM

End Matched

Embedded Grit

Grit that is embedded in wood chips in the process of whole-tree chipping. This grit may be extremely difficult to remove when using chips in paper and pulp manufacture.

Embrittlement

A loss in strength or energy absorption without a corresponding loss in stiffness. Clear, straight grained wood is generally considered a ductile material; chemical treatments and elevated temperatures can alter the original chemical composition of wood, thereby embrittling the wood.

Empty-cell Process

Any process for impregnating wood with preservatives or chemicals in which air is imprisoned in the wood under the pressure of the entering preservative and then expands, when the pressure is released, to drive out part of the injected preservative.

Encased Knot

The dead portion of a branch embedded in the stem by subsequent growth of a tree.

End Checks

A drying defect caused by the ends of the boards drying faster than the rest of the wood. This can usually be prevented by sealing the end grain. Using an end grain sealant protects against end checks in decking.

End Coating

The process of sealing the ends of the boards to prevent checking caused by unrestrained evaporation of moisture. Also known as "end grain sealing."

End Grain Lumber grain as seen from one end of the board where elongated pores are exposed. End grain can absorb and release liquid and liquid vapors.
End Joists

The joists at the end of a series of parallel joists.

End-Match (EM)

To tongue and groove the ends of matched lumber.

End-Split

A lengthwise separation of the wood fibers at the end of a piece of lumber.

Energy Wood

Wood that has been delivered to paper and pulp mills, specifically for burning in boilers; wood to be utilized for heat or other energy products. This includes forest, industrial, urban, and other wood waste, as well as whole-tree chips.

Epidermis

The outermost layer of cells on the primary plant body; often with strongly thickened and cuticularized outer walls; sometimes consisting of more than one layer of cells.

Epoxy Glue

A two part glue that practically glues anything to anything, including metal to metal.

ES

Englemann Spruce

Equilibrium Moisture Content (EMC)

When the level of moisture in a board is equal to the moisture in the surrounding air.

European Hinge

A hidden style hinge fastened to the door with a cup hole.

EV1S

Edge V one side

EV2S

Edge V two sides

Even-Aged

A stand of trees in which there are only small differences in age among the individual trees.

Even-Aged Management

A silvicultural system in which the individual trees originate at about the same time and are removed in one or more harvest cuts, after which a new stand is established.

Expansion and Contraction

Boards expand when they heat up and contract when they cool down. This must be accounted for when spacing deck boards.

Export Sale

Sale of lumber to be shipped to a foreign country.

Exporter

Wholesaler or broker selling to a foreign market.

Extender

A substance, generally having some adhesive action, added to an adhesive to reduce the amount of the primary binder required per unit area.

Extension Cord

A flexible, insulated, electric wire fitted with a plug at one end and one or more outlets on the other, allowing one to plug in.

Extractives

Substances in wood, not an integral part of the cellular structure, that can be dissolved out with hot or cold water, ether, benzene, or other relatively inert solvents.

Extreme Fiber Stress in Bending (Fb)

The allowable unit stress used in the design of bending members such as beams, trusschords, joists, and rafters.

Extrusion Spreading

A method of adhesive application in which adhesive is forced through small openings in the spreader head.

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