1. Is it possible to pour the screed before mounting the door? The screed must be cast before the door is installed in the case of overhead doors because the overhead doors are delivered in series with a sill which simultaneously forms the end of the clevis forward. For sectional overhead doors and doors with an aluminum frame, the screed must be cast before the door is installed. If this is not the case, it is essential for the installer to know during the installation where the level is in the finished state (and the height of the tiles if a tiled floor is provided). He can thus proceed to a wedging to reach the planned height in the finished state. For sectional side doorsthe screed must also be poured after the installation of the door. For renovation projects, we also offer with side sectional doors a renovation ground rail that will be installed on the finished floor. If you opt for this type of model, it is imperative that the floor is perfectly