i have just joined, and my first posting is going to involve picking your collective brains!
i have a painting on 15mm M.D.F. with the painting running to the edge of the board and over the side. I am box framing it but can not use a 18mm small box slip as this will obscure the work. I have built my own inner box, using 3mm M.D.F. backing and and sides with a 40mm slip, all glued, primed and painted. My issue is attaching it to the frame. As i am currently "studying" for my G.C.F. i am aiming to have all my frames at a commended or conservation level....clients permitting!.
As all processes need to be Reversible i was considering using one of these methods to attach the 15mm board to the back of the frame (NOT GLUE)
1 - Screwing a 12mm screw through the back (3mm) and into the M.D.F. Bd. 9mm.....leaving the screw 6mm from the face of the painting ( close i know)
2 - prefered (by me) 8mm staples in through the back (3mm) and into the M.D.F....leaving the staple 10mm from the face of the paintind (i have tected this on some off cuts and holds well)
Both are reversible, but will leave small holes in the back of the 15mm M.D.F. art work. is this an issue?
all comments will be welcomed and appreciated, especially from "square frames" as i am going to do a course with you in November. Whether it is a "fine tune" or "total overhaul" we will see

kind regards, steve
i would attach an image if i knew how...
thanks a million John! not very computer literate!