A request was received for warehouse style windows to be used on a G Scale building model. The smaller window is designed for a 2-1/4" by 1-9/16" opening. The larger window is designed for a 2-1/4" x 2-13/16" opening. The intended orientation is vertical as shown. The windows are designed to be installed behind an opening and are sized 1/8” all around to allow for gluing surface and appropriate reveal of the sash and frame through the opening.
Although intended for a G Scale scratchbuild project, these windows will work in an O Scale project. I'll put them in retail packs of 10 if requested.