The selection of wood for a custom rifle stock is mostly a matter of personal preference, although the weight of the wood can be a determining factor, depending on how the rifle will be used. Typically the woods that I use are mostly the different Walnuts, although I have also used Koa, Mango, Birch, Maple, Oak, and others. With the advent of modern bedding techniques, the use of other exotic woods (and even some lightweight soft woods) is now a possibility. A stock can be either carved from a blank or can be duplicated.
Also, below are some of the blanks that I usually keep on hand in various woods – both left and right handed.
Why is a Custom Rifle Stock So Expensive?See this explanation