Stackdoor has delivered a special project at Hilhorst construction company in Amsterdam – Sloterdijk. The challenge was to place a security fence that would not obstruct the passage of the trucks. For this purpose a Stackdoor has been made of which the lateral guides have been pierced, so that the armor can rise more than seven meters. The costs have been limited because the stack gate itself only has to be three meters high. The whole package is lifted to over seven meters high so that the trucks can drive in and out unhindered.