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MailMaster® Express Mailbox - Black™

Step2 Mailmaster Express Mailbox - Black
Step2 Mailmaster Express Mailbox - Black front yard
Step2 Mailmaster Express Mailbox - Black packages
Step2 Mailmaster Express Mailbox - Black rear door
Step2 Mailmaster Express Mailbox - Black
Step2 Mailmaster Express Mailbox - Black front yard
Step2 Mailmaster Express Mailbox - Black packages
Step2 Mailmaster Express Mailbox - Black rear door

MailMaster® Express Mailbox - Black™

$49 - $50

The MailMaster Express Mailbox by Step2 is large enough to meet your postage needs.

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Prices vary by retail location

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Step2 Mailmaster Express Mailbox - Black

MailMaster® Express Mailbox - Black™

This sturdy rotational molded plastic mailbox by Step2 will last for years to come! This postal box features a large interior with room for all of your postage needs. This mailbox features a front and rear door that allows you to safely access your mail whether your postal box is at the end of your driveway or across the street. Made in USA of US and imported parts.

  • Features front and rear doors to access mailbox interior
  • Large mail compartment holds letters, magazines and catalogs
  • Heavy duty, durable poly construction that is built to last
  • Mailbox mounts on a standard 4-inch by 4-inch post (not included)
  • Mailbox includes mounting hardware
  • Assembly is required

PRODUCT NUMBER: 583299
DIMENSIONS: 51.00" H x 23.50" W x 9.00" D
WEIGHT: 12 lbs

SHIPPING DIMENSIONS: 21.50" H x 10.75" W x 25.63" D
SHIPPING WEIGHT: 14 lbs

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Assembly Instructions (pdf)

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Rated 5 out of 5 by from A Good Buy The mailbox arrived quickly in excellent condition. I already had a Step 2 mailbox (cracked at the bottom) attached to a post, so I didn't have to do any digging, thank heavens. I had my dad put the mailbox together (taking the old one off was actually the hard part - I didn't have the right tool to remove the square-headed screws) but it didn't take too long. The only hiccup was when we realized that there wasn't any room to drill the top part of the mailbox together since my mailbox is too close to my neighbor's mailbox. Oops. We should have attached the top part first. Let that be a lesson to you, kids!
Date published: 2018-06-05
Rated 5 out of 5 by from Easy installation - now enjoying new mailbox! I shopped around for one that would make the job easier for me to replace our old mailbox. This one allowed me to use my existing post (4x4) with the original length of about 36” already sticking up, above the ground. Other mailbox kits wanted 24” above ground and I didn’t want to do any cutting; nor have to dig out the existing one either. Very happy customer!
Date published: 2018-06-11
Rated 4 out of 5 by from Mailbox is fine. Screws are too cheap Mailbox is as good as you would expect. The four screws that attach the top of the mailbox to the base are too cheap and strip out.
Date published: 2018-10-07
Rated 5 out of 5 by from Great Mailbox This is a very nice mailbox it's well built heavy duty but it's not heavy I mean it's not hard to handle. It comes in separate pieces that made it easier to put on the post. It came with all of the hardware you need. I wouldn't recommend doing this but this mailbox feels like you could hit it with a baseball bat and not hurt it. For me the hardest part was digging the whole. This is a very nice mailbox and I would recommend this mailbox to anybody.
Date published: 2018-12-01
Rated 5 out of 5 by from Great mailbox! Exceeded expectations because of the low price, we thought it might be cheap plastic. Our 1st step 2 mailbox lasted over 20 years and this new one is just as good quality. Love the sleek look!
Date published: 2018-07-08
Rated 5 out of 5 by from Nice product! Arrived quickly. Installation was quick and easy and this style looks classy at the curb compared to other mailboxes on the street. Very satisfied .
Date published: 2018-06-08
Rated 5 out of 5 by from changed the entire look of my front yard This mailbox installed easily, looks fantastic, is well made and appears durable. looking forward to spring to plant around it.
Date published: 2018-10-24
Rated 5 out of 5 by from Nice looking sturdy mailbox Love the rear access door. Installation was a breeze.
Date published: 2018-06-04

How do I get replacement front and rear doors with magnets because the one I have now do not stay closed

Asked by: Carm
We are sorry to hear of your doors not closing properly. Please contact our Consumer Service Specialists at 1-800-347-8372 Monday through Friday 8AM-5PM Eastern Standard Time and we will be happy to assist you.
Answered by: Step2 Staff Member
Date published: 2021-03-05

Do you have to concrete the 4x4 into the ground?

Asked by: Ralph72
I don’t know if u “have to “ but we did. It gives the post more stability. We placed the post in the hole, poured dry cement around it, replaced the soil we dug out and watered the ground, then attached the box to the post and didn’t touch it for a few days, it hasn’t moved at all. Hope this helps. 
Answered by: Tessa 2
Date published: 2020-09-15

Need replacement mailbox door.  How do I order one?

Asked by: Anonymous
Please contact our Consumer Service Specialists at 1-800-347-8372 Monday through Friday, 8AM -5PM Eastern Standard Time and we will be happy to help you.
Answered by: Step2 Staff Member
Date published: 2020-08-04

What are the actual dimensions for the inside of the mailbox where mail is placed?

Asked by: Jim747
Mine is 6 1/2” wide, 7” high, and 19 inches deep. These are inside dimensions. The box easily fits small packages.
Answered by: Big Mike
Date published: 2020-07-08

I put up a mailbox express and am now wondering if you have a larger package size mailbox that will fit on the kit?

Asked by: Jtrose21
All Step2 mailboxes fit a standard 4' x 4' wood at about 3' feet high out of the ground.
Answered by: Step2 Employee
Date published: 2020-06-17

Had Step 2 Mailmaster Express recently installed.  The back door latch does not hold securely with the magnet.  How can this be fixed?

Asked by: Gazerro
Back door came off during snowstorm and is GONE!Can I get a replacement?
Answered by: Candy
Date published: 2020-04-11

what are the largest size numbers that will fit on the mailmaster express mailbox and do they have to be stick ons???

Asked by: lynda
The magnetic back opening already came off my mailbox after a snowstorm and is GONE!Can it be replaced?
Answered by: Candy
Date published: 2020-02-28

Do u have light blue mailboxes?

Asked by: Norm
sorry no they do not
Answered by: jpash5
Date published: 2020-01-28