Teak Grades

The quality of teak wood can be determined by its grade. There are three different grades used to indicate the quality of the teak: grade A, grade B, and grade C. So, how do they differ from one another?

Grade A teak: The best quality available, Grade A teak, is taken from the heart wood at the centre of the teak tree. It is characterised by a close grain and a warm honey colour, with very few knots present in the wood. It will be rich in the natural oils that protect the teak from weathering and other potentially harmful elements.
 

Grade B teak: The outer section of the heart wood, also known as immature heartwood, is what is used to produce grade B teak. The grain of the wood will not be as close as that of grade A teak, and it will not contain as much natural oil, giving it a duller colour and appearance. Grade B teak furniture will be less expensive than grade A, but it will not last as long in the outdoors, due to a lack of the oils within.
 

Grade C teak: Made from the outer section of the tree, known as the sap wood, grade C teak is a much less reliable option than grade A teak. Although it is much cheaper than grade A, this part of the tree is still growing and therefore is not as developed as others. As a result, Grade C teak is not as strong and will easily split or become warped. The lack of natural oils within Grade C teak also contribute to this process, and there will be no even or uniform colour to the wood. Because it is so weak and unreliable, grade C teak garden furniture should be avoided.

It's worth noting that some suppliers may treat grade B and C teak with chemicals to provide a smoother surface and appealing colour, similar to that of grade A teak. Some may also try and simply sell poor quality teak as grade A, in the hope that you will be unaware of the difference. Be sure that you can trust your supplier.