All our purlins are manufactured from cold rolled, grade S450, galvanised steel.
14mm diameter holes can be punched as required to suit our customers needs.
| Depth | Thickness | Top Flange | Bottom Flange | Top Lip | Bottom Lip | WT/M | Area |
|---|---|---|---|---|---|---|---|
| D mm | T mm | Bt mm | Bb mm | Dlt mm | Dlb mm | kg/m | cm² |
| 177.00 | 1.6 | 65.00 | 65.00 | 15.00 | 15.00 | 4.15 | 5.29 |
| Second Moment of Area | Section Modulus | Radius of Gyration | Moment Capacity | ||||
|---|---|---|---|---|---|---|---|
| lxx Major cm4 | lyy Minor Axis cm4 | Zxx Major cm3 | Zyy Minor cm3 | rgx Major cm | rgy Minor cm | Mcx Major s450 | Mcy Minor s450 |
| 257.59 | 29.05 | 29.11 | 6.24 | 10.60 | 2.80 | 10.59 | 2.80 |
| Span (m) | Height (mm) | Width (mm) | Gauge (mm) | Maximum Loads (kN/m2) at different Purlin Centres | |||||
|---|---|---|---|---|---|---|---|---|---|
| 1000mm | 1200mm | 1375mm | 1500mm | 1675mm | 1800mm | ||||
| 3.5 | 177 | 65 | 1.6 | 6.27 | 5.22 | 4.56 | 4.18 | 3.74 | 3.48 |
| 4.0 | 177 | 65 | 1.6 | 4.18 | 3.49 | 3.04 | 2.79 | 2.5 | 2.32 |
| 4.5 | 177 | 65 | 1.6 | 2.93 | 2.44 | 2.13 | 1.95 | 1.75 | 1.63 |
| 5.0 | 177 | 65 | 1.6 | 2.12 | 1.77 | 1.54 | 1.41 | 1.27 | 1.18 |
| 5.5 | 177 | 65 | 1.6 | 1.58 | 1.32 | 1.15 | 1.06 | 0.95 | 0.88 |
| 6.0 | 177 | 65 | 1.6 | 1.21 | 1.01 | 0.88 | 0.81 | 0.72 | 0.67 |
