The width (a) that we will indicate corresponds to the total width of the door frame that we want to cover.
The height (b) that we will indicate corresponds to the total height of the door frame that we want to cover.
The width (a) that we will indicate corresponds to the total width of the door frame that we want to cover.
The height (b) that we will indicate corresponds to the total height of the door frame that we want to cover.