Lumber Maker is useful in cutting gable ends, door, & window openings It is a tool that is very handy in log home construction. The Lumber Maker is used to cut straight lines in your log walls such as; gable end pitches, or door, & window openings. It can even be used to cut flat spots on your logs. It is an attachment that hooks to your chain saw and slides along either a 2X4 or 2X6 stud as a guide.