What diameter must the ceiling opening have for the staircases?
The ceiling opening for the staircase should be at least 5 cm. (2 inches) bigger than the diameter. This allow of the minimum comfortable finger room when hold the handrail handling whilst walking through the opening. Do I require and specialist tools to install my Ehleva staircase The staircase has been designed to be installed by DIY person, no specialist tools are need to install the Fusion kit spiral. The standard tools that you will require are as follows; electric drill/driver, Spirit level, Allen keys 2.5, 3, 4, 5, 12mm, plumb line, spanners, 13, 17, 30mm, measuring tape, axe saw, Philips screw driver, mallet, dill bits.