FAQ's and Helpful Links

Payment Options – We accept all major credit cards (Visa, Mastercard, American Express and Discover), PayPal, Check, ACH, Wire, and approved Purchase Orders.

  • Credit Cards – Ordering on our website utilizing a credit card is fast, safe, and secure. Your information is protected with some of the most advanced security measures available. Receipts are sent immediately to the email provided at checkout.
  • PayPal – When selecting PayPal at checkout, you will simply login to your PayPal account and provide the requested information. Receipts are sent immediately to the email provided at checkout.
  • Check Payment – If you would like to pay by check, simply select “Check Payment” on the checkout screen. Checks should be mailed to the address provided on the receipt (Rochester Mailboxes Inc. PO Box 335 Spencerport, NY 14559). Please place your order number on the check. We kindly request that check payments are received prior to your order shipping out. If you would like to set up a credit account, please see the purchase order information below.
  • ACH Payment – You may select the ACH payment option at checkout to send funds electronically from your bank account to our bank account. Please have your bank account number and routing number available to supply when prompted at checkout. ACH payments are secure, and a receipt will be sent to the email provided at checkout.
  • Wire Payment – We do accept direct wire payment. Please call us at 833-929-6245, chat with us, or email us at sales@mailboxworld.com and we will provide you with wire instructions and account information.
  • Purchase Orders – We do accept purchase orders from approved businesses. If you would like to set up a credit account with us, please 833-929-6245 or email your business information to cara@mailboxworld.com. Government agencies are automatically granted credit. For many businesses, credit will be approved after we conduct a D&B rating inquiry and verify the information provided. Some businesses may need to fill out a credit application to determine if a line of credit will be granted.
Sales Tax – Customers that have orders shipping to NY, PA, OH, TN, NC, GA, FL, CA, and WA are required to pay the applicable state sales tax. If your business is tax exempt, or if the project you have is tax exempt, please email us a tax exempt certificate to sales@mailboxworld.com and the sales tax will be removed from the order.
Bulk Pricing Quote – For large orders (typically more than 10 units), we would be happy to provide you with a custom quote. Please provide us with the requested information on our Quote Request form and we will have a quote back to you shortly.
Low Price Guarantee – At Mailbox World, we are proud to offer our customers the lowest possible prices on commercial and residential mailboxes. We continuously scan our competitors’ pricing to be sure that our prices are the lowest available anywhere in the USA. If you ever do find a lower price, please contact us and we will beat it, provided that the same product is being offered at a lower price point from an authorized dealer. Please call us at 833-929-6245 or email us the information at sales@mailboxworld.com.

Returns – If you need to return a product, please email us at sales@mailboxworld.com or call us at 833-929-6245. We will issue an RGA (Return Good Authorization) if that item is eligible for return. Please note: Returned goods will not be accepted without an RGA (returned goods authorization) number from us. Orders must be shipped freight prepaid and up to a 20% restocking fee may apply. Products must be returned in their original shipping cartons within fourteen (14) days of receipt. Custom orders and engraved items cannot be returned. Also, 4C and 4B mailboxes cannot be returned. If for any reason the product arrives damaged or defective, we will issue an RGA for that item and send you a new product – no extra cost to you.

Order Cancellation – If you need to cancel an order, please contact us immediately at 833-929-6245 or email us at sales@mailboxworld.com. Many items ship out or are sent to production for personalization within a couple days of ordering. If any item in your order has already shipped or has been personalized, we will be unable to cancel the order. If items in your order have not shipped or been personalized, we can cancel the order and provide a full refund.

Shipping and Lead Times – Shipping and lead times vary by product. Lead times are typically listed on each product page. Many standard items ship out within one week, with an additional 2 weeks added in for custom numbers and/or engraving. Shipping times are usually 2-5 business days, depending on the size of the order and the delivery location. Expedited shipping (1-2 days) is available for many of our products for an extra charge. Please contact us at 833-929-6245 or by email at sales@mailboxworld.com to obtain an expedited shipping quote or if you have additional shipping questions.
Shipping Costs – We use item weight and delivery location to determine the shipping costs for the majority of our products. The shipping cost we extend to our customers is a real-time shipping rate and is not marked up. Once you input the delivery address on the checkout page, the shipping price for your order will be calculated. Many of our competitors advertise “free shipping”, only to have a higher shipping rate included in the total product price. All orders over $10,000.00 will receive free shipping for all products in that order shipping to a single location.
Tracking Information – Once an order ships out, the tracking information will be emailed to the email address provided at checkout. This will provide you a link where you can follow the progress of your delivery.

Delivery Information – Smaller orders are usually shipped by FedEx, while larger orders are shipped by common freight carrier (XPO, YRC, Holland, Old Dominion). Orders can be shipped to both commercial and residential addresses.

  • Free Liftgate Service – While most of our competitors charge for this service, we offer free liftgate delivery for large item orders (weighing over 75lbs).
  • Delivery Appointments will be scheduled by the freight company and a signature will be required for most freight orders.
  • Inspect for Damage – When accepting a delivery, please look over the item(s) being received to ensure no damage has occurred during transit. If boxes are in poor condition or have any visible punctures, please open the unit and verify there is no damage to that unit. If there is damage to your order, note the damage on the delivery receipt prior to signing. Please email pictures of all damage to us at sales@mailboxworld.com within 48 hours of delivery. We are unable to process any damage claims with the carrier after 48 hours. Depending on the amount of damage, a partial credit may be offered, or a replacement unit sent out.

Installation Instructions – Installation instructions can be found on most product pages under the “tech docs” tab. Below are PDFs of our most common installation instructions:

CBU Cluster Mailbox Installation 4B Horizontal Mailbox Installation
4C Versatile Mailbox Installation 4B Vertical Mailbox Installation
International Orders – We accept international orders and are able to ship worldwide. Please contact us for a custom shipping quote for international delivery.
Replacement Parts – We stock a wide variety of replacement parts including locks, keys, decals, doors, touch-up paint, and more. If you need help finding or identifying a specific part, please call, chat, or email one of our mailbox experts.

USPS Regulations and Next Steps


Cluster Mailboxes – All of the cluster mailboxes sold by Mailbox World are pre-approved by the USPS for outdoor, centralized mail distribution. If you are installing cluster mailboxes for the first time, or wish to change the location, you should contact your local post office to discuss an approved site location. Before removing any existing cluster mailboxes, please contact USPS to remove their master (arrow) locks from the units. Provide your local USPS with the date of the new cluster mailbox installation and they will then come out and install the master (arrow) locks on each of the new units.*Please note, effective 2020, USPS regulations now require 1 parcel locker for every 5 mailbox doors. If the cluster mailbox(es) you are planning to purchase do not meet that ratio, we advise purchasing extra stand-alone parcel lockers to get you to compliance. If you do not have the required number of parcel lockers, USPS may require you to purchase additional parcel lockers in the future. In some cases, USPS may not enforce this requirement or may approve less parcel lockers. Please contact your local USPS to see if they will make an exception to this requirement.

4C Mailboxes – Below is an overview of the 4C mailbox regulations. Please contact your local USPS to discuss an approved location for your new 4C mailboxes. Once you have received a location approval, you should inform USPS of the date the new mailboxes will be installed. Once installation is complete, USPS will then come out and put their master (arrow) locks on the new 4C units.Effective October 5, 2006, all new designs approved for NEW CONSTRUCTION AND MAJOR RENOVATION require U.S. Postal Service STD-4C compliant mailbox systems.  The new USPS-4C Standard includes the following specifications:

  • A new minimum size requirement for mailboxes (12″W x 15″D x 3″H).
  • A parcel locker requirement based on a 1:5 parcel locker to customer compartment ratio (effective July 2020).
  • Strengthens security requirements for the units.
  • Standardizes and improves tenant compartment lock design.
  • Adds testing requirements to verify acceptability for either indoor or outdoor use.
  • Meets Americans with Disabilities Act (ADA) standards.

USPS Height Regulations


Installation/Layout Instructions specified in USPS Standard 4C – pages 53821-53832 of the above referenced USPS 4C Standard “Notes” sections specify:

All 4C Units shall be designed such that they are in compliance with the following installation requirements:

  1. The floor of the lowest patron mailbox shall be no less than 28″ above the finished floor (AFF).
  2. The patron lock in the highest mailbox shall be no more than 67″ above the finished floor.
  3. The USPS Arrow lock (master door lock) opening must be a minimum of 36″ and a maximum of 48″ above the finished floor.
  4. The floor of the lowest parcel locker shall be no less than 15″ above the finished floor.
  5. The master access door(s) must be allowed to open a minimum of 90 degrees with no obstruction.
  6. There must be at least one parcel locker for every (5) five patron mailboxes in installations of (5) five or more patron mailboxes. There is no requirement for parcel lockers in installations of less than (5) five patron mailboxes, but one or more parcel lockers are recommended.
4B Vertical and Horizontal Mailboxes – Both 4B vertical mailboxes and 4B horizontal mailboxes are USPS approved only when being used to replace the same style of existing mailboxes. This should not affect the existing rough opening of the wall and the wall should not be modified to accept the new 4B mailboxes. For major renovations, 4C mailboxes or cluster mailboxes are required.
ADA Mailboxes – Mailboxes that have the bottom door installed between 28” and 48” are ADA at ADA approved heights. Most installations require a minimum of 5% of mailbox doors being at ADA heights, although some installations may require 100% ADA compliance.