760 – Widek or Widespan

GENERAL INFORMATION

760 – Widek is also an angular trapezoidal fluted sheet and is similar in appearance to IBR profiled sheeting, the difference being the cover width of the sheet, and the depth of the flutes. IBR sheeting has a cover width of 686mm whereas 760 has a cover width of 760mm. The depth of the flutes on IBR sheeting are normally 36,5mm and the depth of 760 is 28,5mm. Using this type of sheeting has some cost saving advantages.

  • The 760 profile giving a better cover width means a saving of ±10% on sheeting purchased thus a cost saving.
  • To achieve the same coverage less sheets are required to be erected, thus saving time and labour.
  • The advantage of using 760 in place of the sinusoidal corrugated profile is in its strength, that is to say the spanning capacity of 760 are greater than the corrugated profile thus requiring less purlins resulting in a cost saving.
  • 760 Widek can be factory cranked, curved and bullnosed to a wide range of radii (see Bullnosing).

MATERIAL OPTIONS

Galvanised Steel Thickness (mm)
Z250 (Note 1&2)
0,40 0,50
Z275 (Note 2)
0,50 0,60 0,80
Z600  
Colour Coated (Note 3)
Aluminium & Stainless Steel (Note 4)
0,60 0,80
0,50 0,60 0,80
   

Note 1 -

762 corrugated, IBR 686 and Widek 760 are supplied in a Z200 spelter
Note 2

Full Hard can be ordered in a Z275 and Z250 spelter. We offer 0,6mm and 0,8mm material in commercial quality, and 0,4mm and 0,6mm in Full Hard.
Note 3

Available in Mittal’s standard chromadek colour coated range. Special colours are available on request. Please contact our sales staff for further details.
Note 4

We profile certain grades of aluminium and stainless steel. Please contact our sales staff if you require further details.

LENGTHS & ROOF PITCH

760 can be ordered in any length up to 18 metres as per the customers requirements. The maximum length for road transportation is 13.2 metres and lengths over 13.2 metres require special transport arrangements. The minimum roof pitch when using 760 is 7,5°.

TOLERANCES

Length variation of 5,0mm and width tolerance of 3,0mm is permissible.

PURLIN SPACINGS

Purlin Spacings are dependant on both downward loading and negative suction loading caused by wind. Your engineer should be consulted to calculate your load (kn/m²) for your particular application. A broad guideline for Purlin Spacings is shown in the table below.

GAUGE MAXIMUM PURLIN MAXIMUM GIRT
   Spacing for Roof Covering Spacing for Vertical
Covering
  Double Span Single Span Cantilever Cladding Cantilever
mm metre metre metre metre metre
0,50 (Full Hard) 1,60 1,35 0,33 2,0 0,52
0,60 1,70 1,50 0,36 2,3 0,56
0,80 2,15 1,80 0,42 2,7 0,63

Double Span refers to a length of sheet being continuously supported over 3 or more purlins.

   MASS / METRE LINEAR METRE / TON
Thickness 0,4 0,5 0,6 0,8 0,4 0,5 0,6 0,8
760 2,976 3,717 4,464 5,952 336 269 224 168

760 COVERAGE TABLE
(Full width 737mm / Covering with 686mm)

Sheets 760mm Sheets 760mm Sheets 760mm Sheets 760mm Sheets 760mm
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
760
1520
2280
3040
3800
4560
5320
6080
6840
7600
8360
9120
9880
10640
11400
12160
12920
13680
14440
15200
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
15690
16720
17480
18240
19000
19760
20520
21280
22040
22800
23560
24320
25080
25840
26600
27360
28120
28880
29640
30400
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
31160
31920
32680
33440
34200
34960
35720
36480
37240
38000
38760
39520
40280
41040
41800
42560
43320
44080
44840
45600
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
46360
47120
47880
48640
49400
50160
50920
51680
52440
53200
53960
54720
55480
56240
57000
57760
58520
59280
60040
60800
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
61560
62320
63080
63840
64600
65360
66120
66880
67640
68400
69160
69920
70680
71440
72200
72960
73720
74480
75240
76000