The Range Letter Box

Calculator Use

This Knightsbridge Letter Box is the perfect secure alternative to a letter slot in your door. Easy to install, it comes with a locked main compartment and is built to last with its galvanised steel construction and powder coated finish. Additionally, you can help ensure your post never gets mixed up with your neighbour again with the handy nameplate window. Our letterbox flower collection is designed to fit straight through your letterbox for easy delivery. Each of the stems are chosen for their longevity, hardiness and of course beauty.

Generate one or more random number or random letter sets from a range of numbers or letters.

The random numbers or letters will be the random sample set. For Sample Size enter the value for the number of samples you need. For the Sample Range enter the range of values to randomly choose from. For example, to choose from 1 to 100 enter 1-100; to choose from a through m enter a-m or A-M.

If the sample size is greater than the sample range and duplicates are not allowed, the number of results will be limited by the range.

If you use the link in the 'Share this Calculation' box a new randomized set will be generated every time the link is visited.

Generate a Random Number for a PIN.


To generate a 4 digit PIN without duplicate digits, choose Sample Size: 4, Sample Range: 0-9, and Allow Duplicates: no.

Example: 4 digit PIN without duplicates

Keepsake box

To generate a 4 digit PIN with duplicate digits, choose Sample Size: 4, Sample Range: 0-9, and Allow Duplicates: yes. This will allow duplicates but will not necessarily produce duplicates every time. If you actually want duplicates you may need to try several times.

The Range Letter Box In Excel

The Range Letter Box

Example: 4 digit PIN with duplicates

Welcome to the Postbox Shop, we provide an extensive range of individual and commercial postboxes, letterboxes and mailboxes, each designed with access, security and your lifestyle needs in mind.

The Range Letter Box Worksheet

The Range Letter Box Template

With many years experience, we specialise in stylish practical solutions to suit your budget, products including; freestanding postboxes, surface mounted postboxes, recessed letterboxes, through the wall postboxes, door side panel postboxes, parcel boxes, mail chutes, anti arson postboxes, bespoke postboxes, apartment letterboxes and much more.

Excellent quality is maintained at our European manufacturing and assembly plants , using the finest materials, producing over 1 million postboxes a year, utilising sustainable energy processes reducing environmental impact.

To complement our letterboxes, we offer a key replacement service and retain records as part of our anti-fraud policy.


Sort your post today with our huge range of postboxes, letterboxes and mailboxes, in a variety of designs, colours and finishes, from traditional to contemporary designs, find the right letterbox solution for your property.

The Range Letter Box Template

We conform to British & European Standards (BSEN13724) and are Royal Mail compliant. We can also offer quotes for the installation of multiple letterboxes too.

If you have any questions regarding our postboxes, letterboxes, mailboxes or services, please contact us.