The enormous range of thresholds in both commercial and domestic buildings can cause significant problems for mobility and for ramp construction. Structure which can represent a considerable risk to those on crutches or wheelchairs are UPVC thresholds. The potential problems with UPVC thresholds can easily be overcome with Flexiloc using internal ramps. A wheelchair user has been unable to use the garden at her new home due to a substantial UPVC threshold which is part of the patio doors, and because of a narrow semi-circular step leading to the garden. A cornered Flexiloc ramp can be constructed easily over the existing semi-circular brickstep allowing gentle gradient access to the garden and a generous platform on which the resident can manoeuvre her wheelchair in and out of the patio doors. A small wood-effect internal ramp which complements the interior ensures that the UPVC threshold can be crossed with ease.