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Arch A: 9 in. x 12 in. (229 mm x 305 mm) Arch B: 12 in. x 18 in. (305 mm x 457 mm) Arch C: 18 in. x 24 in. (457 mm x 610 mm) Arch D: 24 in. x 36 in. (610 mm x 914 mm) Arch E: 36 in. x 48 in. (1914 mm x 1219 mm)
