It might sound like a quick and easy task but, in reality, correctly measuring for Bifold doors can be a challenge.
And getting it wrong can be heart-breaking and costly! In fact there’s probably not an Installer or Surveyor around that hasn’t mismeasured a window or Bifold at some point.
In the history of thresholds, it’s fair to say that no product has come under more scrutiny than the Bifold door threshold.
Perhaps it’s the fault of the industry for promoting all those sexy images of the seamless step from inside to outside that has lead customers to become fixated on this hitherto unnoticed detail! (Just think back to the old PVCu entrance doors where you almost had to take a run up to get over the threshold!)