The 9 Best Heavy duty Mailbox Posts (2023 reviews)

The mail boss wooden post should be able to handle its purpose and duties with ease. This mailbox is heavy and needs a stable base and post. It fits either a mailbox or a spreader bracket. It is a great match to the mailboss 705 curbside security locking mail box. The post is sturdy and holds up two mail boss mailboxes. It is easy to install and dresses it all up. It even though it's tough it's still easy enough to carry and handle for the installation. This is big enough for the usually prescription mail order bottle.

Why We Like This:

Sturdy, strong, beautiful with a black mailbox on top
Comes with the screws/bolts to mount to the mailboss universal mounting plate
Very nice looking & matches the mail box
Very sturdy and easily mounted to mailboss mailbox with 4 supplied bolts

Best For Standard Mailbox: Zippity outdoor Products Heavy duty Mailbox Post

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Compared with other post in this category, the zippity outdoor products heavy duty mailbox post has a convenient design. The Architectural caps and base moldings give special attention to detail, including a newspaper holder that is both practical and attractive. It’s free standing and ours has a metal post to go into a long part to stabilize. It doesn’t take very long and it looks great.

The Post Arm measures 5” x 5” x 25 1/2", with 19" available for a mounting bracket. It’s made of a nice, neat base for the plastic post to rest on and it keeps the grass away so you don't damage the post with a weed-eater. It’s very easy to install and has a lot of room inside the mailbox. The material is heavy duty and high quality like vinyl fence post. This is a smart, simple design.

Why We Like This:

Easy to install, looks good, with some caveats
Decorative and will last a long time
Very well made and sturdy even without filling the box with dirt

Best For Wood Post: 4Ever Products Vinyl Mailbox Post

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4Ever Products line of post come in a pretty wide variety of styles, so you can definitely find one that suits your individual preferences and needs. The simple and elegant design complements the features of your home. You can use a 4x4 wood post inserted into the vinyl to make it stable. The post and plaque are pure white, and the mailbox is glossy black. The finished size of the post is 3 1/2 inches square. The mailbox is made well and looks BEAUTIFUL.

The mailbox it comes with is 18" long. The mailbox is easy to put together and install.

Why We Like This:

Looks great, could use some better quality cosmetic touches
Good brand reputation

Best Product: Custompak Mounting Plate

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This mailbox post comes pre-assembled, easily for you to slide over your 4 x 4 post. It’s sturdy and supportive for the mailbox, easy to install and looks classy. It is easy to install and it’s very sturdy and it’s a great value for the money.

This post set ships complete with a Universal Mounting Plate. It is made of a pretty strong plastic and comes with bolts to fasten into the standard metal pole. There are wood screws that ship with this pre-assembled post cover, for fastening to the wood post. This will fit over a 4 x 4 metal post and the dimensions of the mounting plate are 14" x. The mailbox is so easy to install, less than 30 minutes to put up.

Why We Like This:

Assembled, easily for you to slide over your 4 x 4 post
Delivers what they promise

Best With planter: Mayne Heavy duty Mailbox Post

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Next on the list, we've got yet another post that manages to win our hearts. It's the mayne heavy duty mailbox post and it's widely considered as one of the best convenient post you can buy. It is great for florida hurricanes. It is made from high quality 100% polyethylene with built in uv inhibitors for long lasting protection from the elements. It is a middle size, rounded top mailbox that is big enough to hold a magazine flat. It easily installs over a standard 44 wood post. It is suitable for mailboxes weighing less than 14lbs. This ensures that your product doesn't fade, preserves its color and increases its overall lifespan. It is easy to fit on as well.

Why We Like This:

Well made, easy to assemble & classy looking
Nice to go get mail and not have to fight with the bees
Lot of satisfied buyers

Best Quality Material: 4Ever Products Heavy duty Mailbox Post

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If you are looking for a reliable post for your daily usage, you cannot go wrong with the 4ever products heavy duty mailbox post. The 4ever products vinyl mailbox post is engineered to be installed in minutes and will stand for generations with the quick and simple process of direct burial installation. It is easy to assemble and looks great. It is a family-owned business plus includes custom house numbers. It is creating a hole that is 24 inches deep, set the vinyl post directly inside, and pour a bag of ready-mixed concrete around the post. It includes all of the screws and hardware necessary for installation.

The mailbox is very sturdy and very nice looking. It is a very good looking unit. It is made of rust-resistant galvanized steel, displays a bright red flag, and is postmaster approved.

Why We Like This:

Absolutely a clean, classic looking mailbox
Simple and elegant design compliments the features of your home
Sturdy steel mailbox engineered to last a lifetime

Best With Lego house: Custompak Heavy duty Mailbox Post

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We know from years of feedback from readers, customers and amazon sellers, what most people want in a convenient and appropriate post. The custompak heavy duty mailbox post is exactly that - it's a simple post that hits all the right notes. Curbside mailboxes must be placed on the right-hand side of the road and facing outward so that mail carriers can access it easily without leaving their vehicle. This post fits snugly onto the wooden post underneath it for extra sturdiness. It's a good imitation wood and stone for much cheaper than the real thing.

This is heavy duty. It is made with high density polyethylene. There are mounting screws that go in both sides of the post to secure it to the 4x4 post. If you can screw into both sides it will be better secured and more aesthetically pleasing. It is sturdy and goes well with the brick facade with it. It's easy to assemble and recommended.

Why We Like This:

Great look and stands out compared to same boring mailboxes all around
Assembled and will look great in any neighborhood
One of the new comers and featured product

Best For When The Ground: Simplay3 Heavy duty Mailbox Post

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Best part: simplay3 heavy duty mailbox post costs comparatively low and it is available to ship in 24 hours. The universal dig-free mailbox post will instantly improve your home's curb appeal while also being one of the strongest, sturdiest and most durable posts out there. It is what makes this durable and attractive mailbox post stand out from the rest. This is easy to assemble, is durable, and looks good. It gets soft on hot days and bends easily.

The post is molded to the shape of the base. It is ideal for when the ground is frozen. It is great way to set the mail box without digging.

Why We Like This:

Sturdy, stable base fills with 70 lbs dry sand
Complete with molded-in mounting plate and hardware
Easy to put together and it's sturdy once you add the sand
Larger holes with screw on caps

Best For sturdiness: Mail Boss Heavy duty Mailbox Post

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This is a surface mount post, they do make a ground post that’s longer. It fits perfectly over a 4x4 treated post which you will need to make height. The Mail Boss mailbox bolts to the top of this 27 inch post and puts it at the correct height per USPS regulations for a curb or surface mount mailbox. It has 4 holes drilled on 2 sides which line up with the base mount plate. The bottom of the mailbox box will be just over 27" as the base plate adds maybe a quarter inch.

The surface must be flat if your using the Mount Base Plate to pit it on a concrete slab but if you just stick the post in the ground then it doesn't matter. It is much easier to use a 43" burial post where dirt is available. A 4x4 wood post must be custom trimmed to fit into the base. It is designed to last a lifetime.

Why We Like This: