April 14, 20251 yr comment_48820 Hi Everyone Looking for a viewpoint on the following if anyone can assist please. Threshold gaps to fire doors should obviously be kept to within permissable limits and if a door performs a smoke stopping function then 3mm is regarded as the accepted threshold gap. To reduce such gaps where threshold gaps are becoming excessive then an accepted practice would be to add a hardwood strip with a minimum of 6mm to the bottom of the door by glueing and screwing. Question: Is there a maximum size put on any timber hardwood addition to reduce a threshold gap at the bottom of a door? Thankyou for any help in this department. Report
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