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Internet # 322380160

Model # WP000WAM

Store SKU # 1008876564

Whitley Plastic, Crossarm, Convertible Mailbox Post, White

$69.97
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  • Includes mounting plate, post sleeve, and all mounting hardware
  • Durable, rust-proof, polypropylene plastic construction
  • Can accommodate up to two mailboxes
  • View More Details

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Product Details

About This Product

Brighten up your curb with the Whitley mail box post. Its crisp white design and decorative top bring just the right mix of classic and cheerful to your front yard. Made from tough, rust-proof plastic, it laughs in the face of bad weather and installs easily over a standard 4x4 wooden post. Need room for two- It can support two mailboxes with the purchase of an additional mounting board. A fresh, easygoing mail box post for outside that makes your curb look pulled together without even trying.

Highlights

  • Made from durable plastic, this mail box post stands up to rain, snow, and humidity without ever rusting
  • UV-inhibitor finish helps this plastic mailbox post hold its color even on the sunniest days
  • Slides over a 4×4 wooden post for a quick, no-fuss install, giving your mail box post for outside a clean, straightforward setup
  • Designed to support up to 40 lbs. this mailbox post stays strong, steady, and ready for daily deliveries
  • Made to mount effortlessly with Architectural Mailboxes curbside mailboxes marked with letters A, B, or C
  • Assembly is quick and easy, giving you a smooth and stress free setup
  • Includes mailbox post, installation and mounting hardware; Mailbox and 4×4 wooden post sold separately
  • Add a second mounting board to turn this mail box post into a dual-mailbox setup for shared or multi-home use
  • Iconic, timeless mailbox post style complements both new and historic homes, making it a versatile choice for any setting
  • Thoughtfully engineered with a focus on durability, function, and style
  • Return Policy
  • California residents
     see Prop 65 WARNINGS

Product Information

Internet # 322380160

Model # WP000WAM

Store SKU # 1008876564

Specifications

Dimensions: H 57 in, W 6 in, D 22.7 in

Dimensions

Product Depth (in.)

22.7 in

Product Height (in.)

57 in

Product Width (in.)

6 in

Details

Color

White

Features

Corrosion Resistant, Fade Resistant

Hardware Color Family

White

Included

Assembly Hardware, Brackets, Mounting Hardware, Posts

Post Installation Type

Fits Over 4x4

Post Material

Vinyl

Product Weight (lb.)

6.3 lb

Returnable

90-Day

Weight Capacity (lb.)

40 lb

Warranty / Certifications

Manufacturer Warranty

3 Year Limited Warranty

Questions & Answers

Why isn't this sexy thing compatible with G mailboxes? The G posts are ulgy.
ByAug 19, 2026
1 Answer | 
Answer This Question

Thank you for your interest in our products. The Whitley post is an original product of Gibraltar Industries. This is why it is not compatible with Architectural G mailboxes.

By|Aug 25, 2026


    USPS regulations are 41" minimum from the ground. This says it is 39". Can we use this in the US?
    ByApr 27, 2026
    1 Answer | 
    Answer This Question

    Thank you for your interest in our products. Mailbox height requirements are based on the final installed position of the mailbox, not just the post itself. Per USPS guidelines, the bottom of the mailbox must be between 41” and 45” above the road surface. Because of this, whether the post is compliant depends on the specific mailbox being installed. The key factor is how the mailbox sits on the mounting surface—particularly the distance from the mounting point to the bottom of the mailbox. To confirm compliance, we recommend: • Identifying the mailbox model being used • Determining the distance from the mounting holes to the bottom of the mailbox • Adding that dimension to the post’s mounting height The final result should fall within the 41”–45” requirement.

    By|Oct 15, 2026

      (1)

      Does the cross bar have a removable cap to access the interior as a newspaper holder.
      ByMar 3, 2026
      1 Answer | 
      Answer This Question

      Thank you for your interest in our products. No, it does not.

      By|Mar 4, 2026


        Is there room for a news paper box to mount under mail box?
        ByFeb 3, 2026
        1 Answer | 
        Answer This Question

        Thank you for your interest in our products. Yes, you should be able to attach a newspaper holder underneath the mailbox.

        By|Feb 5, 2026


          Can you change the top cap? Is it removable?
          ByDec 31, 2025
          2 Answers | 
          Answer This Question

          Thank you for your interest in our products. No, you can't change the top cap for the Whitley plastic mailbox post. It is not removable once you install it.

          By|Jan 3, 2026

            I can remove mine. I'm just trying to figure out if a different 4x4 cap will fit or if I need to go with a 5x5...but it comes off. I added 2 screws because it comes off fairly easy

            By|Aug 15, 2026


              what is the material that the support arm made out of
              ByDec 18, 2025
              1 Answer | 
              Answer This Question

              Thank you for your interest in our products. It is made out of PVC plastic.

              By|Dec 26, 2025


                Do I need a piece of wood for the cross-bar (in addition to the wooden post)?
                ByOct 21, 2025
                1 Answer | 
                Answer This Question

                Thank you for your interest in our products. No, you do not need to a piece of wood for the crossbar. A mounting plate is already included.

                By|Dec 27, 2025

                  (1)

                  Can I put my own green mailbox on this?
                  ByAug 5, 2025
                  1 Answer | 
                  Answer This Question

                  Thank you for your interest in our products. If your hole pattern of your mailbox line up with the hole pattern in the mounting bracket that comes with the Whitley post. Yes, it will fit.

                  By|Aug 5, 2025


                    Viewing 1-8 of 28

                    Customer Reviews

                    4.3 out of 5

                    • 4.3 out of 240 reviews
                    • 80% recommend this product
                    Filter by:
                    Showing 1-10 of 240 reviews
                    This customer chose to rate the product and not provide text.
                    by
                    • Verified Purchase
                    Wobbly cross bar only held in with plastic clips
                    The crossbar is wobbly and then add the weight of the mailbox. I drill screws into the sides where the crossbar meets the post to provide more than the plastic clips. I was able to cover those screws with numbers. If this mailbox doesn’t survive long I will look for one with a triangle support bar instead but do not want to uninstall to return this.
                    by
                      Not great for snowy climates
                      This mail box post was easy to assemble and mount over my old wooden post, and it looked nice for the first 6 months. But in the first substantial snowstorm of the winter it got blasted by the town snowplow and the horizontal arm holding the mailbox got ripped right out of the post. I’ll be going back to a wooden post since this one is no longer usable.
                      by
                        1 found this review helpful
                        Great material need to put the pieces together
                        by
                        This customer chose to rate the product and not provide text.
                        by
                        The post and box brace were perfect. We were able to install it easily and it looks great!
                        by
                        • Verified Purchase
                        Very easy to install over my existing mailbox. Just cut the old post below the box and slid it over. The plastic clips to secure the cross bar from inside the post aren’t the best, but they provide screws to secure it to the post. Used it with a new mailbox from the same company and it looks great.
                        by
                        • Verified Purchase
                        Looks great but not rigid
                        Didn’t last a single snow storm, very brittle plastic when cold and will break very easily. Would not buy if you live in a snowy climate.
                        by
                          1 found this review helpful
                          This customer chose to rate the product and not provide text.
                          by
                          • Verified Purchase
                          This customer chose to rate the product and not provide text.
                          by
                          • Verified Purchase
                          Showing 1-10 of 240 reviews

                          Compare Key Features

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                          Product Snapshot

                          Perfect for upgrading your mailbox with a durable, weather-resistant post, adding style and functionality to your home.
                          Ideal for homeowners looking for a natural cedar mailbox post, making installation easier with its drive-in anchor.
                          Perfect for upgrading your home with rust-resistant aluminum post, adding style and functionality.
                          Ideal for homeowners seeking a rust-resistant, adjustable mailbox post, ensuring easy installation and durability.

                          Height

                          57 in.
                          43.3 in
                          56.41 in
                          33 in. - 41 in.

                          Weight Capacity

                          40 lb
                          120 lb
                          60 lbs
                          120 lb

                          Material

                          Vinyl
                          Cedar Wood
                          Aluminum and steel
                          Aluminum

                          Weather-Resistant

                          Rust-Resistant