The aspect channels offer vertical support for holding the glass panels set up. Measure and mark exactly where the pre-drilled channels should be set up on to the shower walls. Drill pilot holes in the walls utilizing a masonry drill little bit. Ensure the channels align flush to the partitions. https://shower-door-installation71479.celticwiki.com/1225664/5_tips_about_shower_door_installation_near_newton_ma_you_can_use_today