DIY Doctor

Industry Standard Window Tolerances

Postby Dreamon100 » Tue Aug 11, 2020 8:28 pm

Hi, does anyone know if there is an industry standard tolerance for double glazed units to be not flat / straight?
The issue is if I put a straight edge across my sliding door units there is a clear gap of 3 - 5mm in the centre. As the air gap is supposed to be 20mm it is reduced a lot by the deflection. Surely there must be a ‘Standard’ that should be met.
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