Building a Custom Mailbox
Gonzo’s Rock Mailbox
Note that when I built my mailbox, I could not find a lot of
helpful information with material lists, so I had to wing much of it. I hope
someone can use my information to help them build something as nice. I used
graph paper to draw mine out completely for a list of materials et.al. I still
~$600 plus rock covering. Use native rock if you have it and cut the backs off flat to adhere.
· Home Depot Extra Large Architectural Mailbox Model #950020B-10 - $69.97
· Order a number plate beforehand. There are people who make these custom on Etsy. We ordered ours here from Jim Grady at
12-16 cinderblocks depending on curb height
Grout bag Tube of RTV sealant
· 18, 80lb Bags of Maximizer concrete
2 Bags Type-N mortar
2 Bags Sand
· Sheet of 15/32ths plywood
10ft crown molding
Box of 1.5” Deck screws
· Brad Nailer –for tacking on support strips of scrap wood
24 2x8x16 cinder pavers
Disclaimer: That may or may not be an all inclusive list… Use safety gear like gloves and goggles when grinding, etc
Specs:Mailbox opening should be 41-46” high, consider if you are building in residential with a curb that provides additional lift from the street level. Measure from the street. Add or omit one level of cinderblocks to drop 8-inches.
Building an Architectural Base
Using an architectural base as I am calling it (due to the taper edge look), you can eliminate a row of cinderblocks. Is it cost effective? No, but man it sure looks nice. My base took 17 bags of concrete at a weight of 1360 lbs. With a heavy base, the addition of blocks, concrete, rock and a top won’t tend to tilt the box over time.
Dig a Hole and Cement the Base
Building of the Tower
Your base is finished, neighbors are watching and intrigued, lets give em something to talk about. Determine first how many levels you will need to get the bottom of the mailbox to around 40”. I have no curb, used the 8” rise of the base and 4 levels of cinderblocks (12 blocks).
Mounting the Mailbox
There will be two pavers across the back and one side paver that will need to be cut down to make the corners meet.
Rocking the Mailbox
So you wanna be a box rocker…. Lets do it. I had excess faux Austin stone from my last house. Now living in Arkansas, the Austin stone is kind of out of place, but looks so good. I watch people slow down to drink in its beauty as they pass by. Attaching rock is an artsy kind of project. The only thing to watch for is:
Now your neighbors see what you were seeing in your head when you started this fiasco on their street and may be getting envious. But there’s more to do. This mailbox needs, nay begs for a custom mailbox cap. Get your saw and plywood back out because we need to make a new form.