Load Tables

CONCENTRATED LOAD - CLEAR SPAN   
(Distance between supports, measured from the inside edge of one support to the inside edge of the next support)  

LBS. PER FOOT   OF LENGTH OF CATWALK   OR PLATFORM	23"	30"	35"	42"	47"	54"	60"
Light or Occasional	3.0	3.0	3.0	3.0	3.0	4.0	5.0
Pedestrian Traffic	3.14	3.14	3.14	3.14	3.14	4.27	6.25
Normal or Frequent	3.0	3.0	3.0	4.0	5.0
Pedestrian Traffic	3.14	3.14	3.14	4.27	6.25
Heavy or Constant	3.0	4.0	4.0	5.0	6.25
Pedestrian Traffic	3.14	4.27	4.27	6.25
Pedestrian Traffic	3.0	4.0	4.27	6.25
with Light Equipment	3.14	4.27	5.0
	4.0	5.0	5.0
	4.27		6.25
	4.0	5.0	6.25
	4.27	6.25
	4.0	6.25
	4.27

The concentrated load deflections for the above selection chart do not exceed the 1/4" maximum deflection as the generally accepted recommendation for normal pedestrian comfort. 

CONCENTRATED LOAD AND UNIFORM LOAD DEFELCTION TABLES/FIXED SPAN 

STYLE (LBS. PER SQ. FT.)		.	SPAN 24"	36"	48"
3#	U		275	100
		D	.250	.220
	C		275	165	75
		D	.250	.250	.250
3.14#	U		375	150	50
		D	.250	.240	.250
	C		375	155	75
		D	.250	.250	.250
4#	U		350	150	50
		D	.240	.245	.250
	C		440	225	100
		D	.250	.250	.250
4.27#	U		500	165	60
		D	.245	.245	.250
	C		400	225	100
		D	.250	.240	.250
5#	U		600	175	100
		D	.240	.240	.250
	C		540	310	140
		D	.245	.250	.250
6.25#	U		800	300	115
		D	.220	.250	.240
	C		800	300	150
		D	.220	.240	.240
2#	C		250	100	50
		D	.250	.250	.250

U = Uniform in Lbs. Per Sq. Ft. 
C = Concentrated Load in Lbs. Per Sq. Ft. 
D = Deflection in inches