6 5/8" (16.83 cm) Unassembled Medium Super (Illinois) Budget 10 Frame - Case of 5:

Loose knots are acceptable unless you can push them out. Knots on fingers and rabbet ears are acceptable. Knots in hand holds are acceptable ½ the thickness or more can be missing from the top or bottom of the board as long as it remains a functional board. Sides and ends with hand holes slightly off center are acceptable.

With the 6 5/8" Unassembled Medium Super (Illinois) Budget 10 Frame use 6 1/4" Frames and 5 5/8" Foundation.