The Quality Of Teak Depends On How It Is Graded

Not all teak wood is created equal. The quality and durability of teak depends on how it is classified.

The grading of teak wood depends on what part of the tree it originates from. Wood from the centre or heart of a teak log is A grade, wood from further out is B grade. Wood harvested from the outermost part of the log is C grade teak.

The closer to the centre of a log the timber originates from, the higher grade it is and the more expensive it is.

Teak wood is renowned for its resistance to harsh weather. The natural teak oil, most concentrated at the heart of the log, provides teak with durability and water resistant prowess; many boats feature teak fittings.

This great strength however, does depend on its grade. Follow this guide and make sure you check the classification of teak furniture with your retailer, such as The Teak Place, or manufacturer.

Grade A Teak

Grade A teak is wood harvested from the heartwood or centre of the trunk of a mature tree. A mature tree is one at least 20 years old.

Teak wood is naturally infused with teak oil, silica and rubber which protects it from harsh weather, and also renders it resistant to insects such as termites.

The heartwood of a mature teak tree is dense and strong. It has a very tight grain and presents a warm, even honey colour. Grade A teak is free of knots and imperfections. The high oil content provides a slight gloss or sheen to the wood.

The innermost wood of the trunk is denser, and has a higher oil content than wood from the outer edges of the trunk.

Heartwood comprises only 20 to 25% of the trunk of a mature tree, and so costs more than other grades of teak.

Grade B Teak

Grade B teak is made from the outer heartwood of a mature tree.

Fortifying teak oil is less concentrated than in the innermost part of the log, and the wood less dense; the grain is not as tight. This grade of teak may show some knots and faults.

Grade B teak carries a less even and less glossy appearance than Grade A teak; it is not as honey coloured.

Grade C Teak

Grade C teak is sourced from the outermost part of the trunk of a mature tree. This outermost part is termed sapwood; sapwood is the living part of the tree that transports water and nutrients throughout.

The high water content and a low oil content of this grade renders it less durable than other grades, as teak oil provides the fortifying ingredient that makes teak such a powerhouse.

Grade C teak shows multiple knots and faults, and may display an uneven colour of light and dark. It does not exhibit the even honey colour and sheen of high quality teak.

Some times Grade C teak is stained a darker colour so as to emulate higher quality teak; be on the look out for this and check when buying.

Teak creates wonderful outdoor furniture. The grading of teak does affect its beauty and durability, so buy the best you can afford. Check with your retailer on how to care for your teak furniture—make the most of it no matter what grade you purchase. Lower grades can be fortified with special treatments.