Types of Timber

Types of Timber:

                       According to its botanical origin wood is classified into two kinds:

Soft wood:

                 Soft wood is obtained from Gymnosperms. Soft wood from coniferous trees like pine etc, , and are generally lighter and  simple in structure.

Hard wood:

                 Hard wood is produced from Angynosperm, known as Dicotyledons. They contain broad leaf trees and are strong, harder and more complex.

CHARACTERISTICS OF SOFT WOOD:

·         Light in color

·         Fast or rapid  growth

·         Low weight

·         Low density

·         Distinct annual rings

·         Hearth wood and Sap wood cannot be separated or distinguished

·         Strength is strong along the grains

·         Conversion is easy

·         Resonance material usually exist in pores

 Examples are chirr, fir and other conifers.

CHARACTERISTICS OF HARDWOOD:

·          Dark in color

·         Slow or gradual  growth

·         Heavier weight

·         High density

·         Indistinct annual rings

·         Hearth wood and Sap wood can be separated or distinguished

·         Strength is strong along and across the grains

·         Conversion is difficult

Examples are sheshum, oak, teak and other desidous trees.