How to use this Roll Off Roof calculator?

With this calculator, you can easily determine how many EasyRails, Interconnection Strips, end stops, and EasySliders you need for a roll-off-roof observatory.

How it works:

• Measure the length and width of your observatory and enter them in millimeters
  (e.g., 5.50 meters = 5500 mm)
• Choose the roof’s rolling direction
• The calculator assumes that the roof is rolled away completely at a minimum
• The required rail length is automatically rounded up safely
• You will immediately see which parts you need
• Wait for the prices to load, then click Calculate
• Optional; select your currency
• Click the button: Add to cart
• Then click on Cart at the top of the page or here

Good to know:

• EasyRails are supplied in standard lengths of 2,000 mm, supplemented with 500 mm if necessary
• EasySliders are calculated as 1 slider per full meter of rolling direction per side
• Place the first and last slider at the beginning and end of the roof, and distribute the rest evenly along the side of the roof
• This tool is a practical guideline — if in doubt, we are happy to assist you

👉 Want to be sure everything is correct? Feel free to request a non-binding check or quote.