Pictures with opening backs

[Jon_Brooke]

I've got to make some frames for some quite big photographs (about A2)

Customer wants opening backs so he can swap them round periodically.

Flexible points won't be durable enough and I don't really like turn buttons as they are a bit fiddly and are proud of the back of the frame so can mark the wall.

Anyone got any clever ideas for putting a removable back into a wooden frame?

Thanks.

[Gesso&Bole]

If the moulding is deep enough, make a wooden subframe that is screwed into the frame.

[pramsay13]

How about canvas offsets reversed so they sit in the frame. The customer can then just unscrew them to replace the photo and screw them back.

[Justintime]

I'm assuming that the photo will be sink mounted and not hinged, for the customer to swap out the prints?

[JFeig]

How does this client intend to mount this photo and what are their expectations for it staying flat over time?

[JoeB]

The bow springs lion sell are good as they are screwed in and keep the work to the front.

[prospero]

I used to use these https://www.lionpic.co.uk/p/9531/Spring ... d-pack-200
for such purposes. They were great because you can bend them slightly to get just the right amount of pressure on.
But... The last lot I got had a habit of spontaneously breaking at the screw hole which was very embarrassing.
There are other versions that I tracked down but very expensive.