Twinwall Sheet Material Calculator

The Twinwall Sheet Material Calculator is a free German-language browser utility from doppelstegplatten.SHOP for preliminary roofing material planning. Enter the width and length of the area, choose metres, centimetres or millimetres, select a sheet width and adjust the percentage allowance for waste. The result shows the required number of sheets, total area including the allowance, and total lengths for edge profiles and joining profiles. Available sheet widths include 700, 980, 1050 and 1200 millimetres. Homeowners and installers can use these figures to prepare a material enquiry and compare planning assumptions before ordering. No account or payment is required to use the calculator. It provides indicative quantities rather than structural calculations or an engineering design. Measurements, material suitability and installation requirements still need to be checked for the particular project. The surrounding website provides roofing materials information, installation guidance and individual enquiries rather than an online checkout.