The quality and grade of teak wood says a lot about your furniture and how it endures the weather and time. Educating yourself on the different qualities of teak furniture is an important aspect when researching outdoor furniture, especially furniture that may be a part of your family for years, even decades.
In this blog, I’m going to briefly discuss the procedures in grading teak wood, and some of the basic guidelines behind the different grades.
Grade C teak wood and furniture is more dark and can have whiter spots, which is young sapwood. Most grading policies allow for some dead knots, which can be removed and filled with epoxy and/or putty. You will find more “hand crafted” teak wood using Grade C teak than any other grade of teak. Grade C follows no drying processes and the tenon does not completely fill the mortise gaps.
Grade B teak wood still has a darker color and few areas of white with more allowances of knots per linear foot. These pieces of teak are semi-machine made, meaning, that it is hand-guided by electric saws and finding replacement parts may be more difficult. Just like Grade C teak, the tenon does not exactly fit in the mortise and just floats inside with epoxy or putty keeping it all together.

Grade A is the epitome of quality when it comes to teak furniture. Only the heartwood (center of the tree) is used and is harvested between 30 and 50 years of age (you should see my previous blog pertaining tree harvesting). Some of the common characteristics of Grade A teak would be close wood grains, a warm golden-honey color and rich oily feeling that is knot-free. There will be no streaks of white (sapwood) and if knots are present, they will only be on the underside, less than .5 inches in diameter and only found once per 3 linear feet. Grade A teak is only machine cut, allowing replacement parts to be easily sought after.
All London Teak products feature Grade A teak lumber in our outdoor teak furniture and is from the Perum Perhutani teak plantations on the island of Java, Indonesia. But this doesn’t mean all teak products are from this plantation. There are teak plantations all through out the world. India, Indo-China, Burma, Philippines and several countries in South America. Knowing where your teak came from, and having an idea which plantation produced your furniture can have a major impact on the quality of your teak furniture.
When considering purchasing outdoor teak furniture, having the right information and knowledge about teak could be highly advantageous to you.
Check out this site for more information on teak grading.