Rural Fencing Data
Wire - how much tension to use.
The recommended tensions below will aid the building of sound stock-proof fences.
|
Gauge (mm) |
Length per 25kg coil (Metres) |
Yield point (approx kg) |
Breaking load (kg) |
Maximum recommended tension (kg) |
|
High-Tensile Wire | ||||
|
1.6 |
1584 |
160 |
200 |
80 |
|
2.5 |
648 |
480 |
600 |
150 |
|
3.15 |
408 |
640 |
800 |
200 |
|
Mild Steel Wire | ||||
|
2.0 |
1013 |
115 |
150 |
65 |
|
2.5 |
648 |
150 |
200 |
80 |
|
3.15 |
406 |
265 |
350 |
150 |
|
3.55 |
321 |
340 |
450 |
200 |
|
4.00 |
253 |
450 |
600 |
250 |
Posts, Strainers, Stays, Angles, Battens, Standards
|
Item |
Length (m) |
Diameter (mm) |
Approximate avg weight (kg) |
|
Treated Pine Posts* |
||||
|
No. 1 |
1.8 |
115-165 |
13.9 | |
|
No. 2 |
1.8 |
90-114 |
7.4 | |
|
No.3 |
1.8 |
63-89 |
4.1 | |
|
Strainers* |
||||
 |
3.0 |
200-250 |
59.6 | |
|
heavy |
2.7 |
200-225 |
47.9 | |
|
2.4 |
200-225 |
42.6 | ||
|
3.0 |
175-200 |
41.4 | |
|
medium |
2.7 |
175-200 |
37.3 | |
|
2.4 |
175-200 |
33.1 | ||
|
3.0 |
150-175 |
31.1 | |
|
light |
2.7 |
150-175 |
28.0 | |
|
2.4 |
150-175 |
24.9 | ||
|
Stays* |
24 |
110 avg |
11.4 | |
|
Angles* |
||||
|
heavy |
2.1 |
150-175 |
21.8 | |
|
light |
2.1 |
115-150 |
14.5 | |
|
Battens* |
1.2 |
50 x 50 |
1.9 | |
|
Steel Standards* |
1.5 |
- |
2.9 | |
|
1.65 |
- |
3.2 | ||
|
1.8 |
- |
3.6 |
Weights will vary, depending on moisture content.
Semi-dry (25-50% m.c) weigh about 0.5 tonne per cu m.
Wet (80-90% m.c) weigh about 1.0 tonne per cu m.
Posts per km: Number of posts required per km using straining posts 200m apart, i.e. 5 to the kilometre, is given below:
| Posts 3m apart: 328 Posts 4m apart: 245 |
Posts 5m apart: 195 Posts 6m apart: 162 |
Posts 7m apart: 138 Posts 8m apart: 120 |
