C5 envelopes are rectangular and measure 162 x 229mm. They are bigger than C6 envelopes. An A4 sheet folded or cut in half would fit inside one. All our C5 envelopes have the opening on the long side.
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Upstairs, 98-100 Chapel Street, Marrickville NSW 2204, Australia
Phone: (02) 9519 8237 Fax: (02) 9557 6126