Lumber

Lumber can be broadly categorized as framing, appearance and industrial lumbers.

A framing lumber is commonly used in structural application for both conventional and pre-engineered framing system. This kind of lumber usually graded based on strength.

Appearance lumber is used for purpose where lumber strength is not the primary concern. This type of lumber is usually non-structural graded.

Industrial lumber is intended for specific industrial applications, such as mining, scaffolding and foundation. This type of lumber can be either structural or non-structural graded.

For engineering application, only structural graded lumber shall be used.

The manufacturing of lumber converts a rough lumber to dressed lumber. A rough lumber is defined as lumber with surface imperfections resulted from primary sawing operations. The dressed lumber on the other hand, is a lumber with its sides and edges planed or sanded.