A5 A4 A3 A2 Backing Board Thick Cardboard Card Photo Display Mount Board 1mm 2mm

A5 148mm x 210mm (5.8" x 8.3"). A2 420mm x 594mm (16.5" x 23.4"). A3 297mm x 420mm (11.7" x 16.5"). 2mm thick board (2000 microns) - 795gsm. A4 210mm x 297mm (8.3" x 11.7"). 1mm thick board (1000 microns) - 430gsm.

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