Burls

Burls are a fast growing, abnormal growth found on some trees. They grow because the tree has experienced some sort of environmental stress or damage, and can be caused by either a fungal attack or an attack by insects.

The number of trees that produce burl wood is quite low. Trees in certain areas tend to have more burls than others due to the likelihood of attack by fungus or insects. Certain species also tend to be more susceptible to attacks and, therefore, more likely to develop burls.

Often, a tree that has developed burl wood is still quite healthy. In fact, many of these trees go on to live for many years. Other trees develop burl wood off shoots that are so large and heavy that they create additional stress on the tree and can cause it to die.

When used in wood crafting, burl wood is removed from the tree. It is then cut open to reveal the pattern inside. Some burl woods, develop regular growth rings that simply grow at an accelerated rate. They don’t produce the swirling grain pattern as others. Some burls contain swirly grain with what is called ‘eyes’ – small spots that develop on the wood.

While pieces with unusual patterns are the most desired, they are also the most difficult to work with. This is because the irregular patterns make the wood harder to saw, chisel and cut without splitting the wood or accidently cutting in the wrong direction. Burls tend to hold a special place in most woodworkers’ hearts.