HBSB systems are also known as lift & slide systems. These systems can lift and slide heavy sashes very easily due to their specialized carriages on their rail systems. They are mainly applied to places where connect outdoor places with indoor places such as terraces, balconies and gardens. In this way, it is possible to reflect the warmness and nature of wood to interior design while having an undivided view with great insulation for noise, water and heat. PeriodPWF has developed a new system in order to lower the threshold height so that the intersection between outside and inside is almost zero. Moreover, various divisions can be made according to mechanism application dimensions.