Thanks all
Many of the Menard's do have cut saws near the lumber shed for employees to make a cut or 2, mostly to fit in car like mentioned. The long horizontal cuts can be done very nice with that equipment.
Most home improvement stores will cut a board for you if it's just one or two just because you need it to fit in your car. Some charge you and some don't.
Straight cut on a 12" board maby a miter cut if you ask the right person no charge$0.00 but they sell miter boxes and saws of all kinds for a true do-it-yourselfer
They cut wood, i believe its $1 per cut, dont expect anything fancy other than a simple cut at a certain length
Thanks! Your answer is awaiting moderation.