regulation thickness for glass in a front door

[davychiswick46]

hi,putting round coloured glass circles in a front door 250/160/120 mm diameter, they are all above 1.5m in height,how thick does this glass have to be? can it be 4mm with safety film.? cheers

[welsh brickie]

uk regulations state that glass in doors are to be toughened or laminated regardless of height so if its going to be laminated its ok