In general, here are the physical characteristics of teak wood:

Color:
• Heartwood (core): Varies from golden-brown to dark reddish-brown, and can even reach deep red in very old teak. This color will darken with time and exposure to air and sunlight.
• Sapwood (outer): Yellowish-white or grayish-white, easily distinguishable from the heartwood.

Grain and texture:
• Grain: Generally straight, but can also be wavy or slightly intertwined, adding aesthetic variation.
• Surface: Slightly dull and oily due to its natural oil content.
• Texture: Moderately rough to coarse and uneven.
• Hardness: A moderately hard wood, with a strength class II.

Unique Characteristics of Teak Wood
In addition to its physical characteristics, teak also has unique characteristics that make it special:
• Natural Oil Content (Tectoquinone): This is one of its most important characteristics. The natural oils and resins in teak wood act as natural preservatives and repel pests such as termites, fungi, and insects. The older the tree, the higher the oil content in the heartwood.
•High Durability (Durability Class I-II): Teak wood is highly durable and resistant to various weather conditions, humidity, and temperature changes. This makes it ideal for both outdoor and indoor use for a very long time.
• Dimensional Stability: Teak wood does not easily warp, shrink, or crack due to changes in humidity or temperature. This stability makes it an excellent choice for construction that requires high precision.
• Easy to Work: Despite its hardness, teak wood is easy to cut and shape, and it has good screw-holding strength without easily splitting. The surface finish can also be very smooth.