The extremely strong sides that surround this swimming pool have been made using Tritech(tm) tritech(tm), a 3 layer reinforced material that has the mesh of polyester encased by two layers high-gauge PVC material. The material has a layer thickness in the range of 0.40-0.80mm (16-32 gauge) according to the dimensions of the pool. with superior strength and endurance The pool must comply with the fencing requirements of the Building Act 2004 , 3.66m in height x H 76.5cm .