• Skip to main content
  • Skip to secondary menu
  • Skip to footer
  • Home
    • Events & Trade Shows
    • Frequently Asked Questions FAQs
    • Export
    • Industry Sectors
    • UK Ladder Safety Statistics
      • Industry Guidance
  • Products
    • Accessories
    • Combination Ladders
    • Ladders for Trade & Industry
    • Loft Ladders
    • Multi-purpose Ladders
    • Podium Steps
    • Scaffold Towers
    • Step Ladders
    • Step Stools
    • Telescopic Ladders
    • Warehouse Steps
    • Work Platforms
    • New Products
  • About
    • 80 Years
    • Heritage
  • Support
    • How to Fit a Loft Ladder
    • User Guides & Manuals
    • Spare Parts & Replacements
    • Company Policies
    • Delivery Information
    • Returns
    • Warranty
  • News & Information
  • Contact Us
TB Davies™

TB Davies™

Making working at height as safe as standing on solid ground

  • Brands
  • Training Academy
    • FAQs
    • PASMA Towers For Users Course
    • LA Ladder & Step Ladder User Course
    • LA Combined Ladder & Stepladder Inspection Course
    • PASMA Towers on Stairs Course
    • LA Working with Steps & Step Stools Course
    • LA Ladder & Stepladder Inspection Course
    • PASMA Combined Towers & Low Level Access Course
    • PASMA Work At Height Novice Course
    • PASMA Low Level Access Course
  • Specialist Access Equipment
  • Become a Distributor
Home » Customer Support » Ladder Sizing Guide

Selecting the Right Size Ladder & Steps

Choosing the right size or length ladder is just as important as the style. One of the most common and potentially dangerous ladder selection mistakes is purchasing a ladder that is either too long or too short.

TB Davies Sizing Guide

Measuring advice

Before you buy a ladder or step, first measure the height that you are looking to work at or to reach. Then using this measurement, work out the right sized product to buy with the guide above. The pictures show the average heights of most UK homes, and so they will give you a rough guide to calculate which ladder or step would be most appropriate for the job. If in any doubt at all, give our sales team a call on 029 2132 0000


Vector Graphic of Operator Using Ladder

Working from a ladder?

Across our website and literature we calculate the ‘Approximate Working Height’ as 1.6m added to the last climbing height.

This gives an approximate measure of comfortably working at chest height, e.g. drilling into a wall.

Learn More
Vector Graphic of Operator Using a Step Ladder

Working from a Step Ladder?

Across our website and literature we calculate the ‘Approximate Working Height’ as 1.6m added to the platform height or last climbing height if you are using a Swingback Step Ladder.

This gives an approximate measure of comfortably working at chest height, e.g. drilling into a wall.

If you are reaching above, e.g. painting a ceiling, then please measure this and add to the platform height.

Learn More

Individual SKU Level Photography

Look out for individual product photographed to give a clear indication of scale.

3.5m Double Extension Ladder

Genesis design collections have everything you need to design beautiful block-powered websites with just a few clicks.

4.0m Double Extension Ladder

Genesis design collections have everything you need to design beautiful block-powered websites with just a few clicks.

5.0m Double Extension Ladder

Genesis design collections have everything you need to design beautiful block-powered websites with just a few clicks.

Footer

Follow Us:

TB Davies on LinkedIn   TB Davies on Twitter    TB Davies on YouTube    TB Davies on Facebook    TB Davies on Instagram

Directions
Opening Hours:
Monday to Thursday 8:30-16:30
Friday 8:30-15:00
Saturday: Closed
Sunday: Closed

Telephone: +44(0)29 2132 0000
Fax Number: +44(0)29 2070 2386

Links

Professional Access Equipment Brochure
Industry Sectors
Whitepaper on Ladder Standards
Heritage
Info & Image Library
Little Giant Ladders UK

Support

Standards & Technical Information
Terms & Conditions
Terms & Conditions (Inventory Service)
Returns

Sign Up

Sign up to receive the latest info on new TB Davies products & services, special offers and more.

Company Policies

VAT Registration No. GB134144207
Registered in England No. 534073
EORI. GB134144207000
XI-EORI XI134144207000

Copyright © 2026 TB Davies (Cardiff) Ltd, Lewis Road, Cardiff, CF24 5EB. +44(0)29 2132 0000. Registered in England No. 00534073, VAT Reg No. GB134144207. TB Davies (Dublin) Ltd, 9 Exchange Place, Dublin 1, Ireland. Investors in People Silver Award Since 2018. An ISO 9001 Registered Company. Members of the Ladder Association and PASMA. Ladders-Online.

Manage Consent
To provide the best experiences, we use technologies like cookies to store and/or access device information. Consenting to these technologies will allow us to process data such as browsing behaviour or unique IDs on this site. Not consenting or withdrawing consent, may adversely affect certain features and functions.
Functional Always active
The technical storage or access is strictly necessary for the legitimate purpose of enabling the use of a specific service explicitly requested by the subscriber or user, or for the sole purpose of carrying out the transmission of a communication over an electronic communications network.
Preferences
The technical storage or access is necessary for the legitimate purpose of storing preferences that are not requested by the subscriber or user.
Statistics
The technical storage or access that is used exclusively for statistical purposes. The technical storage or access that is used exclusively for anonymous statistical purposes. Without a subpoena, voluntary compliance on the part of your Internet Service Provider, or additional records from a third party, information stored or retrieved for this purpose alone cannot usually be used to identify you.
Marketing
The technical storage or access is required to create user profiles to send advertising, or to track the user on a website or across several websites for similar marketing purposes.
  • Manage options
  • Manage services
  • Manage {vendor_count} vendors
  • Read more about these purposes
View preferences
  • {title}
  • {title}
  • {title}