Door thresholds are located at the bottom of the door and are the transition point between one door and another. Plates can be fitted to your threshold to protect the door frame as well as provide an additional decor point for your home. The purpose of the threshold is to close the gap between the bottom of the door and the floor, preventing different floor materials. Thresholds are used with the door layer and weatherstripping to seal the opening, preventing wind, rain and snow from entering. The size threshold is defined as the smallest size stimulus seen by the subject at each test location where the subject responded by meeting a predetermined criterion. Door sills act as a seal to prevent drafts, as well as excess heat from outside and rainwater from entering your home. Adding door bars means you won't have to spend as much money to heat or cool your home, making it more energy efficient overall. A threshold function is a Boolean function that determines whether the value equation of its inputs exceeds a certain threshold. A device that implements such logic is known as a threshold gate. Quantitative traits that are clearly expressed in a limited number of phenotypes, usually two, but that are based on a hypothetical continuous distribution of factors that contribute to the underlying responsibility for the trait. A flat utility threshold will remedy this situation by narrowing the gap and creating a solid surface to close the bottom of your automatic door. 

A flat door threshold strip is used as a connecting strip between floors of the same height such as laminate, tiles and wooden floors. Excellent quality Flat Anodised Aluminium Door Threshold. Order Online or Call for more information at 01143609100.