Backing for Mount Boards

Thanks John, its a max 20 x 16. Might get the next lot cut to the size you mention

Will have to ask at my club. I think you mentioned the PDI resolution is changed too, so that will be a new projector to buy which will please clubs everywhere. Guess a new rule book will have to be printed to.
I have a tin of the spray glue (red can), do you have the board the same size as the print or leave a border? Would save the cost of the "frame"

The boards are always 50x40cm and the prints are based on A3 paper. The shape of the print will depend on the shape of the crop for a particular image.

I cut the paper to leave a thin white border and mount on black board. Always leave a slightly larger margin at the bottom, otherwise the print will look low on the board. It's an optical illusion, but a centrally mounted print will look odd.

Thanks for tips John, of course I should have said the paper the same size as the board I'll have to have a practice with some unimportant prints ( all of them )

Cutting the prints to shape is best done with a rotary trimmer.

Ah, something I don't need to buy My wife makes greetings cards so will borrow hers. As long as I remember NOT to use the one that does the fancy edges. ~~~~~~~~~~~ ^^^^^^^^^^ etc.

I was given a selection A4 & A3 years ago. They were from a printers and I would say about the thickness of a business card.I had a quick look on ebay and there are several people selling it.
I found the best way to mount the print is to tape the top edge only then all of the sides of the backing board with a clearance of one cm all around. This method allows the print to move and not buckle.
Framing tape is the best but I have seen brown parcel,gaffer,sello and masking tapes used.

John