Stacked-Edge Plywood Picture Frame

Rip the plywood into strips about 3/4in wide on the table saw — use more strips for a wider frame profile.

Rout or table-saw a rabbet along the inside back edge of each strip, sized to hold your glass and backing thickness.

Miter the strips to length for your chosen photo size.

Glue and clamp the mitered corners together, checking each corner for square before the glue sets.

Drop in the glass, photo, and backing, attach the backing clips, then add a sawtooth hanger to the back.