Classic 47 Schematic Paper Size Notes Paper size is A4, in landscape mode. Length (Portrait mode) Imperial: 8 1/4 in x 11 3/4 in (8.27in x 11.69in) Metric: 210mm x 297mm Schematic will fit fine on Legal size paper, which is basically a slightly longer Letter size document. Incidentally, it will fit a Letter size document if you scale it down a little.