Our Optimum model is our basic model. It is made of 2 millimeter thick high quality aluminum and has a double layer in the gutter for extra strength. Our optimum system can carry a roof of 8 meters long polycarbonate, and a glass roof of up to 3.5 meters! Our optimum series comes in 2 different models: the standard round model, and the cube model with very sleek lines and a modern look. Our optimum systems are delivered with all associated accessories that are already largely installed upon delivery, this concerns the rubbers, LED lighting and all associated screws.