Technical Booklet R Access to and Use of Buildings·Page 29·4.8
Doors opening into corridors and passageways
Doors should not open into corridors or passageways except for cupboards, ducts, or wheelchair accessible toilets (which require minimum 1800 mm width and cannot be on a main escape route).
A door should not open into a corridor or passageway, other than –
(a) a door to a cupboard or duct; or
(b) a door giving access to a unisex wheelchair accessible toilet, provided that the corridor or passageway is not less than 1800 mm wide at that point, and is not a main route of travel or a means of escape provided to comply with Part E.
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