If your mail slot comes with a pre-made template, you can use it instead of the cardboard template.
Transfer these measurements to a piece of cardboard and cut it out to make a mail slot template. Locate the measurements of the mail slot on its packaging. Remove the door from its hinges by tapping the hinges apart with a hammer and a pin tool or a screwdriver. The slot cover can have letters embossed on it, such as your initials or words like 'mail' or 'letters' and a filigree design around the perimeter for an elegant, antique look.
Mail slots come with flaps or moving panels that block air drafts, and decorative mail slots come in a variety of colors, from bright brass to copper. Mail slots, also called letterboxes, can be added to exterior walls and front doors to eliminate the need to walk to the mailbox to fetch your mail. Designed to accommodate larger mail packages, these large mail slots measure four inches in height by thirteen inches in length and are crafted by professional artisans in a corrosion-resistant stainless steel. The European Home Mail Slots for doors serve up a stunning, highly contemporary look and can even be utilized for office exterior use. Stainless Steel Mail Slots by European Home. 1 Install a Mortise Lockset and Door-Knob.