WHY IS IT IMPORTANT?
1. To avoid splinters
Splinters are not what makes the wood more valuable and practical. In order to rid them, you need to get your wood sanded.
2. To smoothen the wood
In order to make the wood more appealing, it is supposed to be sanded. If you don’t want milling marks on your wood, then you better get it sanded.
3. To get the wood ready to get it dyed
In order to apply some dye on the wood, your wood is to be smooth and flawless. Moreover, you need it to be done before it is painted.