Wiktionary
picture framing
n. 1 (context now rare English) The materials needed to construct a picture frame. 2 The act of setting a painting, photograph etc. in a frame. 3 (context roofing English) A square or rectangular pattern of ridges in a roof membrane or covering over insulation or deck joints.
Usage examples of "picture framing".
At first they flattened the wheat with the heavy steel bar that Bower used as a security device on the back door of his picture framing shop.
Although she exhibited work by local artists, Suki supported herself mostly through poster sales and picture framing.