The Zed Purlins we supply are manufactured from prime pre-galvanised steel coil to BS EN 10326.2004 specification giving guaranteed minimum yield strength of 390 N/mm², cut to exact length and suitably packed for UK or export requirements.

Section Number Depth (mm) Thickness (mm) Top Flange (mm) Bottom Flange (mm) Top Lip(mm) Bottom Lip (mm) Wt/m. (Kg) Area (cm²) ZXX (cm³) ZYY (cm³) F (mm)
 12115  121  1.5  55 50 18 16 2.945 3.749 14.28 5.07 61.7
 12116  121  1.6 55 50 18 16 3.182 4.052 15.40 5.36 61.70
 14015  140  1.5  55 50 18 16 3.147 4.015 17.57 5.08 71.20
 14016  140  1.6 55 50 18 16 3.374 4.340 18.99 5.36 71.20
 14018  140  1.8 55 50 18 16 3.737 4.710 20.66 5.94 71.20
 14020  140  2.0 55 50 18 16 4.141 5.211 22.71 6.54 71.20
 17715  177  1.5 55 50 18 16 3.507 4.507 24.29 5.29 89.00
 17716  177  1.6 55 50 18 16 3.787 4.680 25.98 5.61 89.00
17718 177 1.8 55 50 18 16 4.284 5.409 28.99 6.22 89.00
 17720  177 2.0  55 50 18 16 4.756 6.073 32.01 6.83 89.00
20018 200 1.8 61 55 17 17 4.76 6.109 37.50 6.12 100.98
20020 200 2.0  61 55 17 17 5.30 6.790 41.42 6.88 100.98
20025 200 2.5 61 55 17 17 6.58 8.378 51.05 8.42 100.98

Zed Purlin Punching Details

All the holes are punched at 18mm to suit 16mm dia. bolts, the use of anti-sag rods may be required to give additional stability for spans over 4.5m.

Sleeved System Detailing Dimensions in mm
A B C D E F G
121 40 40 150 42 434 50
140 40 60 208 42 550 50
177 40 80 208 42 550 50
200 40 116 208 43 550 50

Zed Purlin Single Span Detail

 

Zed Purlin Double Span Detail

 

Zed Purlin Overhang Detail

Zed Purlin Sleeved Systems

Performance

The performance of the systems shown in the tables below have been derived by calculation in accordance with BS 5950 Part 5. Purlin load tables are valid up to and including 25° roof slopes.

Loading Factor Factor
Dead load 1.40
Dead load restraining uplift or overturning 1.00
Dead load acting with wind and imposed loads combined 1.20
Imposed load 1.60
Imposed load acting with wind load 1.20
Wind load 1.40
Wind load acting with imposed load 1.20
Forces due to temperature effects 1.20
Drifting Snow 1.05

 

Span Metres Section UDL (kN) Purlin Centres (mm) Allowable Loads (kn/m2)
1000 1200 1375 1500 1675 1800 2000 2500
3.5 12115 11.61 3.32 2.76 2.42 2.21 1.98 1.84 1.66 1.33
12116 12.47 3.56 2.97 2.59 2.38 2.13 1.98 1.78 1.43
14015 12.57 3.59 2.99 2.61 2.39 2.14 1.99 1.80 1.44
14016 13.53 3.87 3.22 2.81 2.58 2.31 2.15 1.93 1.55
14018 14.37 4.11 3.42 2.99 2.74 2.45 2.28 2.05 1.64
14020 15.74 4.50 3.75 3.27 3.00 2.68 2.50 2.25 1.80
17715 16.04 4.58 3.82 3.33 3.05 2.74 2.55 2.29 1.83
17716 17.14 4.90 4.08 3.56 3.26 2.92 2.72 2.45 1.96
17718 19.04 5.44 4.53 3.96 3.63 3.25 3.02 2.72 2.18
17720 20.90 5.97 4.98 4.34 3.98 3.57 3.32 2.99 2.39
20018 22.93 6.55 5.46 4.76 4.37 3.91 3.64 3.28 2.62
20020 25.79 7.37 6.14 5.36 4.91 4.40 4.09 3.68 2.95
20025 31.53 9.00 7.50 6.55 6.00 5.37 5.00 4.50 3.60
4 12115 9.70 2.43 2.02 1.76 1.62 1.45 1.35 1.22 0.97
12116 10.41 2.60 2.17 1.89 1.74 1.55 1.45 1.30 1.04
14015 10.56 2.64 2.20 1.92 1.76 1.58 1.47 1.32 1.06
14016 11.37 2.84 2.37 2.07 1.90 1.70 1.58 1.42 1.14
14018 12.08 3.02 2.52 2.20 2.01 1.80 1.68 1.51 1.21
14020 13.23 3.31 2.76 2.41 2.21 1.97 1.84 1.65 1.32
17715 13.61 3.40 2.84 2.47 2.27 2.03 1.89 1.70 1.36
17716 14.54 3.64 3.03 2.64 2.42 2.17 2.02 1.82 1.45
17718 16.16 4.04 3.37 2.94 2.70 2.41 2.24 2.02 1.62
17720 17.73 4.43 3.69 3.22 2.96 2.65 2.46 2.22 1.77
20018 19.45 4.86 4.05 3.53 3.24 2.90 2.70 2.43 1.95
20020 21.88 5.47 4.56 3.98 3.65 3.27 3.04 2.74 2.19
20025 26.75 6.69 5.57 4.86 4.46 3.98 3.71 3.34 2.68
4.5 12115 7.67 1.70 1.42 1.24 1.14 1.02 0.95 0.85 0.68
12116 8.23 1.83 1.52 1.33 1.22 1.09 1.02 0.91 0.73
14015 9.24 2.05 1.71 1.49 1.37 1.23 1.14 1.03 0.82
14016 9.95 2.21 1.84 1.61 1.47 1.32 1.23 1.10 0.88
14018 0.57 2.35 1.96 1.71 1.57 1.40 1.30 1.17 0.94
14020 11.58 2.57 2.14 1.87 1.71 1.54 1.43 1.29 1.03
17715 12.05 2.68 2.23 1.95 1.79 1.60 1.49 1.34 1.07
17716 12.88 2.86 2.38 2.08 1.91 1.71 1.59 1.43 1.14
17718 14.31 3.18 2.65 2.31 2.12 1.90 1.77 1.59 1.27
17720 15.70 3.49 2.91 2.54 2.33 2.08 1.94 1.74 1.39
20018 16.79 3.73 3.11 2.71 2.49 2.23 2.07 1.87 1.49
20020 18.89 4.20 3.50 3.05 2.80 2.50 2.33 2.10 1.68
20025 23.10 5.13 4.28 3.73 3.42 3.06 2.85 2.57 2.05
5 12115 6.83 1.37 1.14 0.99 0.91 0.82 0.76 0.68 0.55
12116 7.33 1.47 1.22 1.07 0.98 0.88 0.81 0.73 0.59
14015 8.27 1.65 1.38 1.20 1.10 0.99 0.92 0.83 0.66
14016 8.90 1.78 1.48 1.30 1.19 1.06 0.99 0.89 0.71
14018 9.46 1.89 1.58 1.38 1.26 1.13 1.05 0.95 0.76
14020 10.36 2.07 1.73 1.51 1.38 1.24 1.15 1.04 0.83
17715 10.89 2.18 1.81 1.58 1.45 1.30 1.21 1.09 0.87
17716 11.63 2.33 1.94 1.69 1.55 1.39 1.29 1.16 0.93
17718 12.92 2.58 2.15 1.88 1.72 1.54 1.43 1.29 1.03
17720 14.18 2.84 2.36 2.06 1.89 1.69 1.58 1.42 1.13
20018 14.98 3.00 2.50 2.18 2.00 1.79 1.66 1.50 1.20
20020 16.86 3.37 2.81 2.45 2.25 2.00 1.87 1.69 1.35
20025 20.60 4.12 3.43 2.98 2.75 2.46 2.29 2.06 1.65
5.5 14015 7.27 1.32 1.10 0.96 0.88 0.79 0.73 0.66 0.53
14016 7.80 1.42 1.18 1.03 0.95 0.85 0.79 0.71 0.57
14018 8.31 1.51 1.26 1.10 1.00 0.90 0.84 0.75 0.60
14020 9.10 1.66 1.38 1.20 1.10 0.99 0.92 0.83 0.66
17715 9.95 1.81 1.51 1.32 1.21 1.08 1.00 0.90 0.72
17716 10.63 1.93 1.61 1.40 1.29 1.15 1.07 0.97 0.77
17718 11.81 2.15 1.79 1.56 1.43 1.28 1.19 1.07 0.86
17720 12.97 2.36 1.96 1.71 1.57 1.41 1.31 1.18 0.94
20018 13.65 2.48 2.07 1.80 1.65 1.48 1.38 1.24 0.99
20020 15.35 2.79 2.33 2.02 1.86 1.66 1.55 1.40 1.12
20025 18.39 3.34 2.79 2.43 2.23 1.99 1.86 1.67 1.34
6 14015 6.21 1.03 0.86 0.75 0.69 0.62 0.57 0.52 0.41
14016 6.68 1.11 0.93 0.81 0.74 0.66 0.62 0.56 0.45
14018 7.09 1.18 0.98 0.86 0.79 0.71 0.66 0.59 0.47
14020 7.77 1.30 1.08 0.94 0.86 0.77 0.72 0.65 0.52
17715 8.94 1.49 1.24 1.08 0.99 0.89 0.83 0.74 0.60
17716 9.54 1.59 1.33 1.16 1.06 0.95 0.88 0.79 0.63
17718 10.60 1.77 1.47 1.29 1.18 1.06 0.98 0.88 0.71
17720 11.64 1.94 1.62 1.41 1.29 1.16 1.08 0.97 0.78
20018 12.35 2.06 1.72 1.49 1.37 1.23 1.14 1.03 0.82
20020 14.05 2.34 1.95 1.70 1.56 1.39 1.30 1.17 0.94
20025 16.80 2.80 2.33 2.03 1.87 1.67 1.55 1.40 1.12
6.5 17715 7.98 1.23 1.02 0.89 0.82 0.73 0.68 0.61 0.49
17716 8.52 1.31 1.09 0.95 0.87 0.78 0.73 0.66 0.52
17718 9.47 1.46 1.21 1.06 0.97 0.87 0.81 0.73 0.58
17720 10.39 1.60 1.33 1.16 1.07 0.95 0.89 0.80 0.64
20018 11.54 1.78 1.48 1.29 1.18 1.06 0.98 0.89 0.71
20020 12.98 2.00 1.66 1.45 1.33 1.19 1.11 1.00 0.80
20025 15.67 2.41 2.01 1.75 1.61 1.44 1.34 1.21 0.96
20018 10.19 1.46 1.21 1.06 0.97 0.87 0.81 0.73 0.58
7 20020 11.61 1.66 1.38 1.20 1.11 0.99 0.92 0.83 0.66
20025 14.19 2.03 1.69 1.47 1.35 1.21 1.13 1.01 0.81
7.5 20020 10.11 1.35 1.12 0.98 0.90 0.80 0.75 0.67 0.54
8 20025 12.36 1.65 1.37 1.20 1.10 0.98 0.92 0.82 0.66
20025 10.18 1.27 1.06 0.92 0.85 0.76 0.71 0.64 0.51
8.5 20025 8.49 1.00 0.83 0.73 0.67 0.60 0.55 0.50 0.40

Zed Purlin Butted Systems

Performance

The performance of the systems shown in the tables below have been derived by calculation in accordance with BS 5950 Part 5. Purlin load tables are valid up to and including 25° roof slopes.

Loading Factor Factor
Dead load 1.40
Dead load restraining uplift or overturning 1.00
Dead load acting with wind and imposed loads combined 1.20
Imposed load 1.60
Imposed load acting with wind load 1.20
Wind load 1.40
Wind load acting with imposed load 1.20
Forces due to temperature effects 1.20
Drifting Snow 1.05

 

Span

Metres

Section UDL (kN) Purlin Centres (mm) Allowable Loads (kn/m2)
1000 1200 1375 1500 1675 1800 2000 2500
3.5 12115 8.36 2.39 1.99 1.74 1.59 1.43 1.33 1.19 0.96
12116 8.98 2.57 2.14 1.87 1.71 1.53 1.43 1.28 1.03
14015 10.77 3.08 2.56 2.24 2.05 1.84 1.71 1.54 1.23
14016 11.59 3.31 2.76 2.41 2.21 1.98 1.84 1.66 1.32
14018 12.31 3.52 2.93 2.56 2.34 2.10 1.95 1.76 1.41
14020 13.49 3.85 3.21 2.80 2.57 2.30 2.14 1.93 1.54
17715 11.55 3.30 2.75 2.40 2.20 1.97 1.83 1.65 1.32
17716 12.35 3.53 2.94 2.57 2.35 2.11 1.96 1.76 1.41
17718 13.72 3.92 3.27 2.85 2.61 2.34 2.18 1.96 1.57
17720 15.05 4.30 3.58 3.13 2.87 2.57 2.39 2.15 1.72
20018 17.08 4.88 4.07 3.55 3.25 2.92 2.71 2.44 1.95
20020 19.22 5.49 4.58 3.99 3.66 3.27 3.05 2.75 2.20
20025 23.49 6.71 5.59 4.88 4.47 4.00 3.73 3.35 2.68
4.0 12115 6.40 1.60 1.33 1.16 1.07 0.96 0.89 0.80 0.64
12116 6.87 1.72 1.43 1.25 1.15 1.03 0.95 0.86 0.69
14015 8.51 2.13 1.77 1.55 1.42 1.27 1.18 1.06 0.85
14016 9.16 2.29 1.91 1.66 1.53 1.37 1.27 1.15 0.92
14018 9.73 2.43 2.03 1.77 1.62 1.45 1.35 1.22 0.97
14020 10.66 2.67 2.22 1.94 1.78 1.59 1.48 1.33 1.07
17715 10.20 2.55 2.13 1.85 1.70 1.52 1.42 1.28 1.02
17716 10.90 2.73 2.27 1.98 1.82 1.63 1.51 1.36 1.09
17718 12.11 3.03 2.52 2.20 2.02 1.81 1.68 1.51 1.21
17720 13.29 3.32 2.77 2.42 2.22 1.98 1.85 1.66 1.33
20018 14.58 3.65 3.04 2.65 2.43 2.18 2.03 1.82 1.46
20020 16.41 4.10 3.42 2.98 2.74 2.45 2.28 2.05 1.64
20025 20.05 5.01 4.18 3.64 3.34 3.00 2.78 2.50 2.00
4.5 12115 5.06 1.12 0.94 0.82 0.75 0.67 0.62 0.56 0.45
12116 5.43 1.21 12.01 0.88 0.80 0.72 0.67 0.60 0.48
14015 6.96 1.55 1.29 1.12 1.03 0.92 0.86 0.77 0.62
14016 7.49 1.66 1.39 1.21 1.11 0.99 0.92 0.83 0.66
14018 7.95 1.77 1.47 1.29 1.18 1.05 0.98 0.88 0.71
14020 8.71 1.94 1.61 1.41 1.29 1.16 1.08 1.97 0.77
17715 9.11 2.03 1.69 1.47 1.35 1.21 1.13 1.01 0.81
17716 9.74 2.16 1.80 1.57 1.44 1.29 1.20 1.08 0.87
17718 10.82 2.40 2.00 1.75 1.60 1.44 1.33 1.20 0.96
17720 11.87 2.64 2.20 1.92 1.76 1.58 1.47 1.32 1.06
20018 12.49 2.78 2.31 2.02 1.85 1.66 1.54 1.39 1.11
20020 14.20 3.16 2.63 2.30 2.10 1.88 1.75 1.58 1.26
20025 17.17 3.82 3.18 2.78 2.54 2.28 2.12 1.91 1.53
5.0 12115 4.55 0.91 0.76 0.66 0.61 0.54 0.51 0.46 0.36
12116 4.89 0.98 0.81 0.71 0.65 0.58 0.54 0.49 0.39
14015 5.83 1.17 0.97 0.85 0.78 0.70 0.65 0.58 0.47
14016 6.28 1.26 1.05 0.91 0.84 0.75 0.70 0.63 0.50
14018 6.67 1.33 1.11 0.97 0.89 0.80 0.74 0.67 0.53
14020 7.30 1.46 1.22 1.06 0.97 0.87 0.81 0.73 0.5
17715 8.09 1.62 1.35 1.18 1.08 0.97 0.90 0.81 0.65
17716 8.64 1.73 1.44 1.26 1.15 1.03 0.96 0.86 0.69
17718 9.60 1.92 1.60 1.40 1.28 1.15 1.07 0.96 0.77
17720 10.54 2.11 1.76 1.53 1.40 1.26 1.17 1.05 0.84
20018 11.03 2.21 1.84 1.60 1.47 1.32 1.23 1.10 0.88
20020 13.00 2.60 2.17 1.90 1.73 1.56 1.44 1.30 1.04
20025 15.17 3.03 2.53 2.20 2.02 1.80 1.69 1.52 1.21
5.5 14015 5.00 0.91 0.76 0.66 0..61 0.54 0.50 0.45 0.36
14016 5.38 0.98 0.81 0.71 0.65 0.58 0.54 0.49 0.39
14018 5.71 1.04 0.87 0.76 0.69 0.62 0.58 0.52 0.42
14020 6.26 1.14 0.95 0.83 0.76 0.68 0.63 0.57 0.46
17715 7.02 1.28 1.06 0.93 0.85 0.76 0.71 0.64 0.51
17716 7.50 1.36 1.14 0.99 0.91 0.81 0.76 0.68 0.55
17718 8.33 1.51 1.26 1.10 1.01 0.90 0.84 0.76 0.61
17720 9.14 1.66 1.39 1.21 1.11 0.99 0.92 0.83 0.66
20018 9.55 1.74 1.45 1.26 1.16 1.04 0.96 0.87 0.69
20020 11.28 2.05 1.71 1.49 1.37 1.23 1.14 1.03 0.82
20025 13.14 2.39 1.99 1.74 1.59 1.43 1.33 1.19 0.96
6.0 14015 4.36 0.73 0.61 0.53 0.48 0.43 0.40 0.36 0.29
14016 4.69 0.78 0.65 0.57 0.52 0.47 0.43 0.39 0.31
14018 4.98 0.83 0.69 0.60 0.55 0.50 0.46 0.42 0.33
14020 5.46 0.91 0.76 0.66 0.61 0.54 0.51 0.45 0.36
17715 5.55 0.93 0.77 0.67 0.62 0.55 0.51 0.46 0.37
17716 5.93 0.99 0.82 0.72 0.66 0.59 0.55 0.49 0.40
17718 6.59 1.10 0.91 0.80 0.73 0.66 0.61 0.55 0.44
17720 7.23 1.21 1.00 0.88 0.80 0.72 0.67 0.60 0.48
20018 8.22 1.37 1.14 0.99 0.91 0.82 0.76 0.69 0.55
20020 9.48 1.58 1.32 1.15 1.05 0.94 0.88 0.79 0.63
20025 11.31 1.89 1.57 1.38 1.26 1.12 1.05 0.94 0.75
6.5 17715 4.37 0.67 0.56 0.49 0.45 0.40 0.37 0.34 0.27
17716 4.67 0.72 0.60 0.52 0.48 0.43 0.40 0.36 0.29
17718 5.19 0.80 0.66 0.58 0.53 0.48 0.44 0.40 0.32
17720 5.69 0.88 0.73 0.64 0.58 0.52 0.49 0.44 0.35
20018 7.09 1.09 0.91 0.80 0.73 0.65 0.61 0.55 0.44
20020 8.08 1.24 1.04 0.90 0.83 0.74 0.69 0.62 0.50
20025 9.75 1.50 1.25 1.09 1.00 0.90 0.83 0.75 0.60
7.0 20018 6.19 0.88 0.74 0.64 0.59 0.54 0.49 0.44 0.35
20020 6.97 1.00 0.83 0.73 0.66 0.60 0.55 0.50 0.40
20025 8.51 1.22 1.01 0.89 0.81 0.73 0.68 1.61 0.49
7.5 20020 5.66 0.75 0.63 0.55 0.50 0.45 0.42 0.38 0.30
20025 6.92 0.92 0.77 0.69 0.62 0.55 0.51 0.46 0.37
8.0 20025 5.7 0.71 0.59 0.52 0.48 0.42 0.40 0.36 0.29
8.5 20025 4.76 0.56 0.47 0.41 0.37 0.33 0.31 0.28 0.22