Glass for shed UPVC unit blown (Bewdley DY12)

Hi, has anyone got any old double glazed units they dont want. Maybe from a replacement recently. I'm just after the glass so doesn't need to be sealed. IE blown is ideal. Or any similar glass. Just for a shed. 2ft x 3 or 4ft but doesn't really matter. Just 2ft wide or bigger. Ill cut to suit. Thanks