BS-6399-1-1996

Table 1 — Minimum imposed floor loads    
Type of activity/occupancy for part of the building or structureExamples of specific useUniformly distributed load
kN/m2
Concentrated load
kN
A Domestic and residential activities
(Also see category C)
All usages within self-contained single family dwelling units
Communal areas (including kitchens) in blocks of flats with limited use (For communal areas in other blocks of flats, see C3 and below)
1.51.4
Bedrooms and dormitories except those in
single family dwelling units and in hotels and motels
1.51.8
Bedrooms in hotels and motels Hospital wards21.8
Toilet areas
Billiard rooms22.7
Communal kitchens except in flats34.5
BalconiesSingle family dwelling units and communal areas in blocks of flats with limited use 1.51.4
Guest houses, residential clubs and communal areas in blocks of flats except as covered by note 1Same as rooms to which they give access but with a minimum of 3.01.5/m run concentrated at the outer edge
Hotels and motelsSame as rooms to which they give access but with a minimum of 4.01.5/m run concentrated at the outer edge
B Offices and work areas not covered elsewhereOperating theatres, X-ray rooms, utility rooms24.5
Work rooms (light industrial) without storage2.51.8
Offices for general use2.52.7
Banking halls32.7
Kitchens, laundries, laboratories34.5
Rooms with mainframe computers or similar equipment3.54.5
Machinery halls, circulation spaces therein44.5
Projection rooms5To be determined for specific use
Factories, workshops and similar buildings (general industrial)54.5
Foundries20To be determined for specific use
Catwalks1.0 at 1 m centres
BalconiesSame as rooms to which they give access but with a minimum of 4.01.5/m run concentrated at the outer edge
Fly galleries4.5 kN/m run distributed uniformly over width
Ladders1.5 rung load
C Areas where people may congregate
C1 Areas with tables
Public, institutional and communal dining rooms and lounges, cafes and restaurants 22.7
Reading rooms with no book storage2.54.5
Classrooms32.7
C2 Areas with fixed seatsAssembly areas with fixed seating 43.6
Places of worship32.7
C3 Areas without obstacles for moving peopleCorridors, hallways, aisles, stairs, landings etc. in institutional type buildings (not subject to crowds or wheeled vehicles), hostels, guest houses, residential clubs, and communal areas in blocks of flats not covered by note 1. Corridors, hallways, aisles etc.
(foot traffic only)
34.5
Stairs and landings
(foot traffic only)
34
Corridors, hallways, aisles, stairs, landings, etc. in all other buildings including hotels and motels and institutional buildingsCorridors, hallways, aisles, etc.
(foot traffic only)
44.5
Corridors, hallways, aisles, etc., subject to wheeled vehicles, trolleys etc.54.5
Stairs and landings
(foot traffic only)
44
Light duty walkways — (access suitable for one person, walkway width approximately 600 mm)32
General duty walkways — (regular two-way pedestrian traffic)53.6
Heavy duty walkways — (high density pedestrian traffic including escape routes)7.54.5
Museum floors and art galleries for exhibition purposes44.5
Balconies (except as specified in A)Same as rooms to which they give access but with a minimum of 4.01.5/m run concentrated at the outer edge
Fly galleries4.5 kN/m run distributed uniformly over width
C4 Areas with possible physical activities
�(See clause 5, Note 1, Note 2 and Note 3)®I
Dance halls and studios, gymnasia, stages53.6
Drill halls and drill rooms59
C5 Areas susceptible to overcrowding
(See clause 5, Note 1, Note 2 and Note 3)
Assembly areas without fixed seating, concert halls, bars and places of worship (See Note 4)53.6
Stages in public assembly areas7.54.5
D Shopping areasShop floors for the sale and display of merchandise43.6
E Warehousing and storage areas. Areas subject to accumulation of goods. Areas for equipment and plant.General areas for static equipment not specified elsewhere (institutional and public buildings)21.8
Reading rooms with book storage, e.g. libraries44.5
General storage other than those specified2.4 for each metre of storage height7
File rooms, filing and storage space (offices)54.5
Stack rooms (books)2.4 for each metre in storage height but with a minimum of 6.57
Paper storage for printing plants and stationery stores4.0 for each metre of storage height9
Dense mobile stacking (books) on mobile trolleys, in public and institutional buildings4.8 for each metre of storage height but with a minimum of 9.67
Dense mobile stacking (books) on mobile trucks, in warehouses4.8 for each metre of storage height but with a minimum of 15.07
Cold storage5.0 for each metre of storage height but with a minimum of 15.09
Plant rooms, boiler rooms, fan rooms, etc., including weight of machinery7.54.5
Ladders1.5 rung load
FParking for cars, light vans, etc. not exceeding 2500 kg gross mass, including garages, driveways and ramps2.59
GVehicles exceeding 2500 kg. Driveways, ramps, repair workshops, footpaths with vehicle access, and car parkingTo be determined for specific use