Live Load Calculation Bangladesh National Building Code (BNBC) 2020

 Live load is calculated According to the Type of building Bangladesh National Building Code (BNBC) 2020

Bangladesh National Building Code (BNBC) 2020, live loads refer to the loads that are not permanently attached to the structure. These loads are important for the design and structural integrity of buildings. The live load values are specified depending on the type of building use and occupancy.

Here’s a table with typical live load values in PSF (pounds per square foot) and kN/m² (kilonewtons per square meter) based on common building usages, as per the BNBC 2020 or similar standards:

Live Load - BNBC 2020
Sl	Occupancy or Use	Live Load (Psf)	Live Load (KN/m²)
01	Roofs (ordinary)	20	0.96
02	One and two-family dwellings	40	1.92
03	Apartment buildings, dormitories, hotels	40	1.92
04	Green roofs	40	1.92
05	Classrooms	40	1.92
06	Private garages (passenger cars)	50	2.4
07	Public garages (car parking)	50	2.4
08	Offices, general	50	2.4
09	Office spaces	50	2.4
10	Lecture halls	60	2.88
11	Libraries (reading rooms)	60	2.88
12	Retail stores, shops	75	3.6
13	General retail spaces	75	3.6
14	Corridors (same floor)	80	3.83
15	Corridors	100	4.79
16	Stairs and exits (for public buildings)	100	4.79
17	Balconies (public access)	100	4.79
18	Roofs with public access	100	4.79
19	Roofs with public access	100	4.79
20	Stairs and exits	100	4.79
21	Balconies (same as occupancy served)	100	4.79
22	Assembly halls, theaters, churches	100	4.79
23	Corridors (other floors)	100	4.79
24	Department stores	100	4.79
25	Department stores	100	4.79
26	Loading docks	100	4.79
27	Production floors	100	4.79
28	File rooms, storage areas	125	6
29	Light industrial	125	6
30	Light manufacturing	125	6
31	Gymnasiums	150	7.18
32	Libraries (stack rooms)	150	7.18
33	Heavy industrial	250	12
34	Heavy manufacturing	250	12
35	Storage areas	250	12
36	Storage areas	125-150	6-7.19
37	Laboratories	50-100	2.4-4.79