Figure 2. Above ground height recommendations from all 12 guidelines by
different species by year.
All but two guides provide a recommendation on the length of fence that
should be buried below ground to prevent wildlife passing or digging
beneath the fence (Figure 3 ). This measurement has varied across
the years, from 6cm to 30cm. There is no obvious increase or decrease in
this length across the years however the most recent published
guidelines by IENE recommend fencing be buried 20cm (Figure 3 ).