Height of panel Length of post Bracket per post Placing in the ground 63 cm profile post 48 mm x 100 cm 2 83 cm profile post 48 mm x 120 cm 2 103 cm profile post 48 mm x 140 of 160 cm * 2 123 cm profile post 48 mm x 175 cm 3 153 cm profile post 48 mm x 200 cm 3 173 cm profile post 48 mm x 225 cm 4 203 cm profile post 48 mm x 250 cm 4 On brick, concrete or asphalt 103 cm profile post 48 mm x 100 cm 2 123 cm profile post 48 mm x 120 cm 3 153 cm profile post 48 mm x 160 cm 3 173 cm profile post 48 mm x 175 cm 4 203 cm profile post 48 mm x 200 cm 4 * Depending on the sub-soil