ISO Press-sheet sizes

Press-sheets — sometimes refered to as plano (mostly in Europe) — are the rough uncut flats of paper a (commercial) printer uses to print your documents on. After the press-sheets are printed the printer will cut clean your layout (by cutting away the bleed).

As with most of the ISO paper systems the height and width of press-sheets relate to each other like the side and the diagonal of a square. If you put two press-sheets next to each other, or equivalently cut one parallel to its shorter side into two equal pieces, then the resulting page will have again the same width/height ratio.

ISO Press-sheet RA Sizes

Press-sheet name	Size in millimeters	Size in inches
RA0	860 mm x 1220 mm	33 7/8 in x in
RA1	610 mm x 860 mm	24 in x 33 7/8 in
RA2	430 mm x 610 mm	6 15/16 in x 24 in
RA3	305 mm x 430 mm	12 in x 16 15/16 in
RA4	215 mm x 305 mm	8 7/16 in x 12 in

ISO Press-sheet SRA Sizes

Press-sheet name	Size in millimeters	Size in inches
SRA0	900 mm x 1280 mm	35 7/16 in x 50 3/8 in
SRA1	640 mm x 900 mm	25 3/16 in x 35 7/16 in
SRA2	450 mm x 640 mm	17 11/16 in x 25 3/16 in
SRA3	320 mm x 450 mm	12 5/8 in x 17 11/16 in
SRA4	225 mm x 320 mm	8 7/8 in x 12 5/8 in

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