First European Quality of Teak Sawn Timber

Serial No.	Features	Remarks
1.	Quarter Sawn Quarter sawn lumber is produced by first quartering the log and then sawing it perpendicular to the growth rings. All of the boards sawn thus are of radial grain. When looking at the end grain, the annual growth rings will be at 90 degrees to each face. Quarter sawn lumber is termed “vertical grain” or “edge grain” in softwoods.	Quality in Preference
2.	Semi-Quarter Sawn That is very similar to quarter sawing, and has the same advantages and limitations. This method of sawing accentuates the vertical grain and minimizes the flake. The angle of the cut is changed slightly so that fewer saw cuts are parallel to the medullary rays, which are responsible for the flake effect. Simi-quarter sawn lumber produces an almost straight grain with practically no flake figure.	Quality in Preference
3.	Flat Sawn Flat sawn lumber is obtained by making the first saw cut on a tangent to the circumference of the log and the remaining cuts parallel to the first. This method	Quality Acceptable in General
4.	Round Grain Rough appearance on the surface of timber is due to certain abnormalities of growth.	Quality Acceptable in General
5.	Wavy Grain Similar to round grain in original but not serious in character as round grain.	WG-1, WG-2, WG-3 = Quality Acceptable in General WG-4, WG-5 = Quality Acceptable in Negotiation
6.	Flame Distortion of the wood fibers of tree which produce figures and highlights similar to a corrugated surface or ripples.	FL-1, FL-2, FL-3 = Quality Acceptable in General FL-4, FL-5, FL-6, FL-7 = Quality Acceptable in Negotiation
7.	Sound Knot A sound knot is solid across its face and is as hard as or harder than the surrounding wood to which it is firmly jointed; it shows no indication of decay.	Quality Acceptable in General
8.	Spike Knot It is a portion of the branch which tried to come out of the trunk but actually it doesn’t come out and stays in the trunk and shows only a sharp mole on the surface area.	Quality Acceptable in General
9.	Dead Knot Dead knot is a knot which is softer than the surrounding wood because it contains decay. If the decay is advanced there may be a hole in the centre of the knot.	Quality Non-acceptable in General
10.	Water Stain The water stain is the discoloration of the timber caused by the sinking of water into the log through sun crack and air crack while it was left out of shelter.	Quality Acceptable in General
11.	Stain And Oxidation Color Shall be unavoidable nature of Teak Wood and not considered as defects. These are internationally recognition and acceptance as natural beauty of Teak Wood.	Quality Acceptable in Negotiation
12.	Chalk Vein Chalk vein is whitish line in color on some pieces which may caused mark in appearance but do not reduce the strength.	CV-1, CV-2, CV-3, CV-4 = Quality Acceptable in General CV-6 = Quality Non-acceptable in General CV-5 = Quality Acceptable in Negotiation
13.	Black Streak Or Oil Streak Blackish line in color on some pieces which are considered as defect from the point of view of appearance but do not effect the strength of the timber.	BS-1, BS-2, BS-3 = Quality Acceptable in General BS-4, BS-5, BS-6 = Quality Acceptable in Negotiation
14.	Sap Wood It is the outer part of the trunk and the most nearest to the bark. Mostly the color is different from the inner layer and has less endurance.	Quality Non-acceptable in General
15.	Pin Hole These are pin size holes on the timber.	Quality Non-acceptable in General
16.	Sun Crack The crack occurred on the surface of the timber. In this case the crack which comes from the inner part is not the sun crack.	Quality Non-acceptable in General
17.	Air Crack The crack caused by the split wood fibers.	Quality Non-acceptable in General
18.	Bee Hole Holes in the wood caused by the larvae of XYLEUTES CERAMICA.	Quality Non-acceptable in General
19.	Chalk Pocket The hole filled by the chalk like solid substances in the timber.	Quality Non-acceptable in General
20.	Heart Crack The cracked line which started from the middle of the heart and comes out to the outer layer.	Quality Non-acceptable in General
21.	In-Bark The bark which has been embedded in the fiber caused by late growth.	Quality Non-acceptable in General