It seems like you're referring to timbers...

It seems like you’re referring to timbers and plywoods, which are materials commonly used in construction, carpentry, and woodworking. Let me explain each of them in detail:

Timber:

Timber refers to wood that is used for building and construction purposes. It is one of the oldest and most versatile building materials, valued for its strength, workability, and aesthetic appeal.

Types of Timber:

1. Softwood:
   • Source: Derived from coniferous trees like pine, fir, spruce, and cedar.
   • Characteristics: Generally lighter, more affordable, and easier to work with. Softwoods tend to be less dense than hardwoods.
   • Uses: Softwood is commonly used for framing, structural supports, and furniture making.
   • Example: Pine, spruce, and cedar used in house framing and construction.
2. Hardwood:
   • Source: Derived from deciduous trees like oak, maple, walnut, and mahogany.
   • Characteristics: Hardwood tends to be denser, stronger, and more durable than softwood. It is more expensive but is prized for its quality and appearance.
   • Uses: Often used for furniture, flooring, cabinetry, and decorative finishes.
   • Example: Oak and maple for furniture and hardwood floors.