
              Having 
                a system based off the floor eliminates the necessity of adjustment 
                over the lifespan of the installation. Any possible deflection 
                of the head of the opening is accommodated in the channel depth 
                at the top. A bottom rolling system allows larger weights of doors 
                (which our solid wood doors are) without having to worry about 
                structural support.
              The 
                system we use is developed in such a way that there are no tracks 
                or channels visible when the doors are in the closed position, 
                making an 'in-line' system. This is a major benefit aesthetically 
                as you don't want to spend large amounts of money on a beautiful 
                set of doors only to have the track and hanger staring you in 
                the face.
              External 
                folding sliding doors are 56mm thick with 24mm Planitherm toughened 
                double glazed units, argon filled with warm edge/swiss spacers.
              External 
                folding sliding doors are supplied full factory spray finished 
                using the Teknos paint system, choice of stain or paint colours 
                click on the finish options link above.
               Folding 
                Sliding Doors Configuration Options