Total load including 180 Kg/Sq.m. live load and shuttering load
Permissible clear spans for centre line spacing in mm
300
450
600
800
900
1150
100
420
8120
6640
5750
4980
4690
4120
115
456
7820
6370
5550
4807
4537
4000
125
480
7600
6200
5370
4640
4388
3882
140
516
7330
5980
5180
4490
4252
3740
150
540
7166
5850
5000
4390
4137
3660
165
576
6940
5665
4900
4250
4000
3540
180
612
6730
5496
4760
4120
3880
3438
190
636
6600
5390
4669
4040
3810
3370
200
660
6480
5290
4580
3970
3740
3310
225
720
6200
5070
4388
4800
3580
3169
250
780
5960
4870
4220
3650
3440
3040
275
840
5745
4690
4050
3520
3320
2930
300
900
5550
4530
3930
3400
3200
2835
The following table provides a ready reckoner for determining the span and spacing of spans giving spacing for various slab thicknesses and spans for M 150 concrete
