THERE ARE NO INDUSTRY STANDARDS OR SIZES IN MAIL SLOTS. YOU MUST MEASURE ACCURATELY!

Successful purchases and installations depend entirely on accurate measurements.

One manufacturer’s “magazine” size may be another manufacturer’s “letter” size. Even our “Elite” magazine size is a different size from our “Classic Surface Mount” magazine size.

There is a high likelihood of dissatisfaction with inaccurate measurements.

Slot Antenna Measurement

Remove your existing mail slot and measure the width and height of the actual hole cut through your door or wall.

Learn how to perform various slot measurements with the diameter function on the V Height Gage. Screws use pitch as a measurement in the metric system instead of thread spacing. Use a measuring tape or ruler to measure the distance from one thread to the next in mms to get this final measurement. The pitch of a screw is typically less than 1 mm, you would measure it as a decimal point of a mm.

Only the size of the hole cut through your door or wall determines if one of our mail slots will fit.

NB. Although it is always easier to increase the size of an existing hole than decrease it …

Click here to read ways of decreasing the size of a pre-existing hole or watch the tutorials.

How To Measure

Step 1. Remove interior AND exterior face plates of existing mail slot from your door or wall

Step 2. Measure the width and height of the “actual hole cut through your door or wall” from both the interior AND the exterior sides of your door or wall and write measurements down

Step 3. Repeat measuring process to make sure your measurements are accurate as in the adage “Measure twice, cut once”

Step 4. You now have your “Cut Out Size” measurements

Step 5. Proceed to our “Products” page to select the appropriate mail slot for your needs

Table Saw Miter Slot Measurements

Step 6. Compare your “Cut Out Size” measurements to the “Cut Out Size” measurements of one of our products

Step 7. For optimal installation your measurements must be smaller than our product’s “Overall Frame Size“

NB. If one or both of your height or width measurements of the “actual hole cut through your door or wall” are larger than the measurements of our “Overall Frame Size”, click here for information on advanced installations.

Parking Slot Measurement

Click here to watch the tutorials