Bringing the outside in, our range of bi-folding doors allows you to open up your home to the outside whilst keeping the elements out. At Rhino Aluminium we specialise in designing and manufacturing a threshold which will not only provides you with the low level, minamilist & contemporary look that you want, but also provides your home with the essential weather rating that it needs. We can of course provide you with other threshold options including our ultra low 22mm internal use profile as well as our low level 32mm thermally broken threshold. These both provide an even level on both side of the bifold, although our recommendation is always to allow us to optimise a standard threshold for your project, please contact the office to discuss this in detail.