Palisade fencing for sale in Pretoria is also called SP fences. Security palisade fences and gates in corrugated pales have higher security grades than general palisade fences and gates. Security palisade fences heights can be 3.0 m and 3.6 m, and fence posts at 2.75 m centres.

Characteristics of palisade fencing for sale in Pretoria:

• Security palisade fence pales are corrugated with fastener head protection.
• Pales relevant load/deflection: the maximum deflection at the middle of the span under a test load of 3.5 kN shall not exceed 10 mm.
• The maximum spacing of pales centre to centre: is 155 mm.
• The minimum face-to-view (width): is 70 mm.

Table 1 - Dimensions for security steel fence with Posts at 2.75 m Centers

Item	Fence height above ground (m)	Posts		Horizontal rails (rolled steel angle section) (mm)	Pales
		Rolled steel joist section (mm)	Embedded length (mm)		Corrugated sheet thickness (mm)
SP30	3.00	127 × 76	925	50 × 50 × 6	See Table 2
SP36	3.60	127 × 76	1125	75 × 50 × 6

Table 2 - High-Security Palisade Fencing Pale Head Styles

Pale Profile	Thickness (mm)
Corrugated "W" section	3.0
Corrugated "D" section	3.9

Additional security to palisade fencing 

1. Burrowing
   1. Pales are extended by 150 mm and embedded in the concrete sill.
   2. Pales are extended by 350 mm and buried in the ground.
2. Pale removal To increase resistance to pale removal, an additional rail was fixed to the pales 100 mm from the bottom of the pales.
3. Topping For additional security against climbing, a spiked topping, barbed wire lines, or barbed tape concertina can be fixed to the pales.

Table 3 Holes for palisade fencing for sale Pretoria post foundations

Fence height above ground level (m)	Minimum plan dimensions
	Square hole (mm)	Round hole (mm)
3.0 or 3.6m	450 × 450	600 diameter