| Occupancy or Use |
Uniform (psf) |
Concentrated (lbs) |
| 1. Apartments (see residential) |
-- |
-- |
| 2. Access Floor Systems |
| - office use |
50 |
2,000 |
| - computer use |
100 |
2,000 |
| 3. Armories & Drill Rooms |
150 |
-- |
| 4. Assembly Areas & Theatres |
| - lobbies |
60 |
-- |
| - movable seats |
100 |
-- |
| - stages and platforms |
125 |
-- |
| - follow spot, projections and control rooms |
50 |
-- |
| - catwalks |
40 |
-- |
| 5. Balconies (exterior) |
100 |
-- |
| - On one & two-family residences only & not exceeding 100 ft. 2 |
60 |
-- |
| 6. Decks |
same as occupancy served h |
-- |
| 7 Bowling Alleys |
75 |
-- |
| 8. Cornices |
60 |
-- |
| 9. Corridors (except as otherise indicated) |
100 |
-- |
| 10. Dance Halls & Ballrooms |
100 |
-- |
| 11. Dining Rooms & Restaurants |
100 |
-- |
| 12. Dwellings (see residential) |
-- |
-- |
| 13. Elevator Machine Room Grating (on area of 4 in. 2)) |
-- |
-- |
| 14. Finish Light Floor Plate Construction (on area of 1 in. 2) |
-- |
-- |
| 15. Fire Escapes |
100 |
-- |
| - on single-family dwellings only |
40 |
-- |
| 16. Garages (passenger vehicles only) |
40 |
see Section 1607.6
Note a |
| - trucks and busses |
see Section 1607.6 |
see Section 1607.6
Note a |
| 17. Grandstands (see stadium & area bleachers) |
-- |
-- |
| 18. Gymnasiums, main floors & balconies |
100 |
-- |
| 19. Handrails, guards & grab bars |
see Section 1607.7 |
see Section 1607.7 |
| 20. Hospitals |
| - wards |
60 |
1,000 |
| - operating rooms, laboratories |
40 |
1,000 |
| - private rooms |
40 |
1,000 |
| - corridors above first floor |
80 |
1,000 |
| 21. Hotels (see residential) |
-- |
-- |
| 22. Libraries |
| - reading rooms |
60 |
1,000 |
| - stack rooms |
150b |
1,000 |
| - corridors above first floor |
80 |
1,000 |
| 23. Hotels |
-- |
-- |
| - light |
|
2,000 |
| - heavy |
|
3,000 |
| 24. Marquees |
75 |
-- |
| 25. Office Buildings |
| file & computer rooms shall be designed for heavier loads based on anticipated occupancy |
| - lobbies and first-floor corridors |
100 |
2,000 |
| - offices |
50 |
2,000 |
| - corridors above the first floor |
80 |
2,000 |
| 26. Penal Institutions |
| - cell blocks |
40 |
-- |
| - corridors |
100 |
-- |
| 27. Residential |
| One and two-family dwellings |
| - uninhabitable attics without storage |
10 |
-- |
| - uninhabitable attics with storage |
20 |
-- |
| - habitable attics and sleeping areas |
30 |
-- |
| - all other areas except balconies and decks |
40 |
-- |
| Hotels and multi-family dwellings |
| - private rooms and corridors serving them |
40 |
-- |
| - public rooms and corridors serving them |
100 |
-- |
| 28. Reviewing stands, grandstands & bleachers |
Note c |
-- |
| 29. Roofs |
see Section 1607.11 |
see Section 1607.11 |
| 30. Schools |
| - classrooms |
40 |
1,000 |
| - corridors above first floor |
80 |
1,000 |
| - first-floor corridors |
100 |
1,000 |
| 31. Scuttles, skylight ribs & accessible ceilings |
-- |
200 |
| 32. Sidewalks, vehicular driveways & yard, subject to trucking |
250 d |
8,000 e |
| 33. Skating rinks |
100 |
-- |
| 34. Stadiums & Arenas |
| - stadiums & arenas |
100 c |
-- |
| - bleachers fixed seats (fastened to floor) |
60 c |
-- |
| 35. Stairs & Exits |
| - stairs & exits |
100 |
Note f |
| - one and two-family dwellings |
40 |
Note f |
| - all others |
100 |
Note f |
| 36. Storage warehouses (shall be designed for heavier loads if required for anticipated storage) |
| - light |
125 |
-- |
| - heavy |
250 |
-- |
| 37. Stores |
| - retail first floor |
100 |
1,000 |
| - upper floors |
75 |
1,000 |
| - wholesale, all floors |
125 |
1,000 |
| 38. Vehicle barriers |
see Section 1607.7 |
see Section 1607.7 |
| 39. Walkways & elevated platforms (other than exits) |
60 |
-- |
| 40. Yards & terraces, pedestrians |
100 |
-- |
