“I have noticed that you have suggested a support wood board as the base when chip carving from a chair. Do you have any guidelines regarding what size this board should be as the support the carving?”
You’ve asked a good question and one that I haven’t answered recently.
A good lap board is 1/4″ or thicker MDF, 12″ x 24″. At Home Depot they sell 1/4″ MDF (medium density fiberboard) in panels 24″ x 48″ for less than $10. If you ask them they will cut it into four pieces 12″ x 24″. Find three other chip carvers and each of you will have a lap board for less than $2.50.