Definitions

In this Technical Booklet the following definitions apply – Dwelling – has the meaning assigned to it by regulation 2 in Part A of the Building Regulations. Entrance storey – means the storey which contains the principal entrance for the dwelling. Flight – has the meaning assigned to it by regulation 54 in Part H of the Building Regulations. Going (in relation to a step) – the depth of the tread less any overlap with the next tread (see Diagram 1.1). Habitable room – has the meaning assigned to it by regulation 2 in Part A of the Building Regulations. Ladder – has the meaning assigned to it by regulation 54 in Part H of the Building Regulations. Landing – has the meaning assigned to it by regulation 54 in Part H of the Building Regulations. Principal storey – the storey nearest to the entrance storey which contains a habitable room, or if there are two such storeys equally near, either such storey. Private stair – a stair in or intended to be used by only one dwelling. Ramp – has the meaning assigned to it by regulation 54 in Part H of the Building Regulations. Retail building – shop, department store, supermarket, public house, restaurant with or without assembly area, cafe, hairdresser, wholesale self-selection trading, public area of a bank, building society, betting shop. Rise (in relation to a step) – the height, including the thickness of the tread (see Diagram 1.1). Small room – any room in a dwelling having a floor area not exceeding 4 m². Stair – has the meaning assigned to it by regulation 54 in Part H of the Building Regulations. Step – in a dwelling, does not include any threshold which has a height not exceeding 40 mm in the case of an internal doorway or 75 mm in the case of an external doorway.