Technical Specification

Geometrical Properties
S.N. Mark and Stamp Base
Metal
Thickness		 Finished
Thickness		 Average Weight Moment 
of Inertia		 Social
Modulus
    mm mm Per Bundle Per Rm cm⁴ cmᶟ
1 0.14 mm 0.12 0.14 21 0.96 0.127 0.283
2 0.15 mm 0.13 0.15 22 1 0.138 0.306
3 32 CQ 0.15 0.17 25 1.14 0.158 0.352
4 32 Heavy 0.18 0.19 29 1.32 0.189 0.42
5 30 Light 0.2 0.22 32 1.46 0.209 0.465
6 30 Medium 0.22 0.24 36 1.64 0.229 0.51

 

Allowable Loads (UDL) in Kg/m²
Base Metal
Thickness		     Span in Meters (Purling Spacing)      
mm 1 1.1 1.2 1.3 1.35 1.4 1.45 1.5 1.55 1.6
0.12 9 8 6 5 5 5 4 4 4 3
0.13 10 8 7 6 5 5 5 4 4 4
0.15 12 10 8 7 6 6 5 5 5 4
0.18 14 12 10 8 8 7 7 6 6 5
0.2 16 13 11 9 8 8 7 7 6 6
0.22 17 14 12 10 9 9 8 7 7 7

 

Live load as per IS 875 (part-2) - 1987 Table 2
S.N. Slope of Roof (V:H) 1 in 2 1 in 2.5 1 in 3 1 in 4 1 in 5 1 in 6 1 in 7 1 in 8
  in Degree 26.5 21.8 18.43 14 11.3 9046 8.13 7.1
  load in kg/m² 43 52.5 59 68 73.8 76.45 76.45 76.45

 

Length Feet 6 7 8 9 10 12  
Length Rm 1.829 2.133 2.438 2.743 3.048 3.657 14.6
Cover
Width
(sq.m)		 Sq.m 1.137 1.35 1.562 1.775 1.988 2.413 10

 

Rm = Running meter