. It is not advisable to arrange door sill or nosing in the interior side of door, in case the clearance space is less than 800 mm. Note: It is only permissible to arrange door sill and nosing in the interior side of door in case the clearance space exceeds 800 mm, and the door sill or nosing does not exceed 50 mm. . As for pulling door, sliding door, accordion door, the clearance space regarding each door type is shown in table 4 and table 5. a) Pulling door: Regulation on clearance space for wheelchair moving is indicated in fig 32