The first thing you see when looking for a house is the mailbox; therefore, I decided to update it by creating a DIY mailbox to increase the curb appeal.
I chose the same type of wood as our other outdoor structures (trellis, lanterns, obelisk, wooden shutters, and flower box).
If you have been following my blog, then you know I am obsessed with solar lights, so I had to add one to this DIY modern mailbox.
This post contains affiliate links. In other words, if you purchase from one of these links, I will make a small commission, but rest assured, you will not pay more for any products.
How to Build a DIY Mailbox
The first thing I had to do was to find out the requirements for the mailbox height and the best placement from the road. You can find the US Post Office requirements on their website.
Mailbox Building Supplies
4x4x8 pressure treated 2 each
1x6x8 pressure treated 6 each
2x8x20 inches pressure treated
Concrete two 40 lb bag
5-inch screws, 2 each
4-inch deck screws (4 each)
2-inch galvanized finish nails
1-inch stainless steel screws (4 each)
Post hole digger
DIY Mailbox Posts
For the posts, we used pressure-treated 4x4s.
We cut the 4x4x8s into the following lengths 65, 54, and 12 inches.
To provide a stable area to attach the short boards on the back post, we screwed the 4x4x12″ to the 4x4x65″ together, aligning the tops.
Building the Mailbox Sides
Next, cut fourteen 1x6x25 inch and four 1x6x7 inch pressure-treated boards.
Then, attach the 1x6x7″ boards to the upper portion of the back post with 2-inch galvanized finish nails.
You will want to use a speed square to keep the sideboard square to posts.
Next, place the posts parallel to each other, keeping them 25 inches apart (outside measurement).
Then attach the side boards to the front and back posts starting below the 7″ boards using with 2-inch galvanized finish nails.
Please note: this view is of the first side of the wooden mailbox holder. Once you finish this side, you will repeat the process on the other side.
Next, we marked the trim for the inside of the back post. Note: we will attach it later.
Next, turn over the wooden mailbox assembly and repeat the same process as the other side.
Wooden Mailbox Trim – Sides
To create finished edges, we used 1×6 pressure-treated lumber.
First, we measured the assembly to get the exact sizes for our side trim cuts.
Note: lumber varies in size.
These are the side trim cuts we used: long front 1x6x38.5, short front 1x7x6, and back 1x6x49.5
However, these measurements could vary, so you must measure your wooden assembly for the exact measurements.
Next, attach the side trims with 2-inch galvanized nails.
We added the top trim last since we wanted it to extend to cover the side trim boards.
Therefore, you will want to include the installed side trim in your measurements for the top trim boards.
Next, we created a mailbox mount (AKA shelf) with a 2×8.
First, we measured the width and length of the metal mailbox then we cut the board to size.
Then, we mitered the front edge of the mount board at a 60-degree angle to allow the mailbox to open.
At this point, you will want to check the fit of your metal mailbox on the “shelf” of your wood mailbox holder.
Note: We installed the metal mailbox onto the mounted board using 1-inch stainless steel screws through the holes in the bottom lip of the mailbox. We did this after it was installed in the ground.
DIY Mailbox Install
To install the mailbox, we dug two holes 16 inches deep and 25 inches apart.
Then we placed the box posts into the holes. We backfilled the holes and then checked them for level.
Once it was level, we added the dry cement and water as we went. Next, we packed the cement around the posts and sloped it away from the wood.
Mailbox House Numbers and Solar Light
Since I am obsessed with solar lights, I decided to use one to illuminate the house numbers.
See you soon,
Ps. This post has been shared on Between Naps on the Porch.
Sunday 14th of May 2023
I have been researching ways to make this mailbox enclosure, and your step by step descriptions are by far the most helpful and detailed. Thank you so much for this post. The end result looks beautiful.
Wednesday 12th of October 2022
Your mailbox turned out great. Solar lights are an awesome idea. Thank you sharing such a detailed DIY mailbox tutorial.
Tuesday 11th of October 2022
This is a great way to add major curb appeal!
Monday 10th of October 2022
Great tutorial, Kippi! Love the addition of the solar light on the mailbox
Sunday 9th of October 2022
So beautiful Mailbox tutorial share you. Very good idea. I like
Monday 10th of October 2022
@Raj, Thank you so much for your visit today! Have a great week, Kippi