VARI-STEPP door sills can be supplied individually with detailed assembly instructions. In the case of new-builds, a recess is left in the cement screed where the VARI-STEPP door sill is going to be installed and the contractor or our fitter can simply glue the VARI-STEPP in place. In the case of renovations, our fitter cuts a recess into the floor into which he glues the VARI-STEPP door sill, before finishing it off nicely with sealant.