Diagrams 2.5 and Diagram 3.10 each set out acceptable requirements for projection by a hand-rinse basin or wash hand basin into the WC access zone for each category. Typically this is up to 200mm and clear of the pedestal or trap beneath the wash hand basin, or 300mm for a wash hand basin adjacent to a WC. It would be reasonable for a hand rinse or hand wash basin to project up to 200mm into a turning circle (where necessary) providing this remains clear of pedestal or trap underneath the basin. For Category 2 a 450mm deep wash hand basin may extend its full depth adjacent to the tap end of the bath with the 1100mm clear access zone required beyond the basin.

Category: Part M - Access to and use of buildings

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