Presence of Sapwood

As discussed earlier sapwood is less durable than heartwood and hence its presence should be avoided. The presence of sapwood can be identified by the colour, which is much lighter than that of heartwood. Further, it does not take good polish as compared to heartwood.

Apart from the natural causes discussed above there may be some defects that occur in the process of seasoning, which is also to be considered while selecting timber for building construction works.