buck opening

rough opening

An opening in a wall, or the framework of a building, into which a doorframe or window frame, subframe, or rough buck is fitted.
References in periodicals archive ?
She shot a 150-inch buck opening day of one youth season, and last year she took a 167-inch 10-pointer that I should not have passed on.
Singletary Rod & Gun president Bill Grimaldo, leading his fellow hunters by example, christened his new Mossberg with a 7-point, 135-pound buck opening day in Northboro.