• Search
  • Training Courses
    • Working at Height
    • Working in Confined Spaces
    • Ladder Safety
    • MSA Latchways Installer
    • General Safety
    • Bespoke Training
  • PPE
    • Working at Height PPE
    • Confined Space PPE
    • PPE Servicing
  • Consultancy
    • Height Safety Consultancy & Audit
    • Confined Space Consultancy & Audit
  • Knowledge Base
    • Working at Height Knowledge Base
    • Confined Space Knowledge Base
    • Industries
    • Case Studies
    • Safety Regulations & Reports
    • Downloads
    • Test Your Knowledge
  • About Us
    • Training Academy
    • Mobile Training Unit
    • Our Trainers
    • Our Accreditations & Partners
    • Client Testimonials
    • Job Vacancies
  • Upcoming Courses
Eurosafe Eurosafe
News Downloads FAQs Contact Us 0114 250 7411 training@eurosafeuk.com
  • Training Courses
    • Working at Height
    • Working in Confined Spaces
    • Ladder Safety
    • MSA Latchways Installer
    • General Safety
    • Bespoke Training
  • PPE
    • Working at Height PPE
    • Confined Space PPE
    • PPE Servicing
  • Consultancy
    • Height Safety Consultancy & Audit
    • Confined Space Consultancy & Audit
  • Knowledge Base
    • Working at Height Knowledge Base
    • Confined Space Knowledge Base
    • Industries
    • Case Studies
    • Safety Regulations & Reports
    • Downloads
    • Test Your Knowledge
  • About Us
    • Training Academy
    • Mobile Training Unit
    • Our Trainers
    • Our Accreditations & Partners
    • Client Testimonials
    • Job Vacancies
  • Upcoming Courses
COURSE FINDER - UPCOMING COURSES d
Home » Working in Confined Space Knowledge Base » Understanding Different Classifications of Confined Spaces – Blog

Understanding Different Classifications of Confined Spaces

Confined spaces are any partially or fully enclosed areas where one or more specified risks may be present. Because of these criteria, it can be challenging to define a confined space, so each area should be assessed individually for classification.

In this article, we’ll explore the main hazards of working in confined spaces, the various types of confined spaces, and the importance of confined space rescue training.

Dangers of Working in Confined Spaces

According to HSE, around 15 workers in the UK lose their life every year in confined space accidents. Causes may involve an inability to recognise the confined space and its risks, inadequate safety systems, and failed rescue attempts.

Indeed, studies by the US National Institute for Occupational Safety and Health (NIOSH) have found that approximately 60% of confined space fatalities involve would-be rescuers.

Confined Space Classification Types

Using the Confined Space Regulations 1997 and the Approved Code of Practice (ACOP) L101 will help determine if an area is a confined space. If it is classified as such, a comprehensive risk assessment must be conducted, and appropriate controls for the foreseeable risks must be implemented.

The risk assessment will classify the space as low, medium, or high risk. Here are some considerations for each category:

Working in Confined SpacesLow-risk confined spaces have:

  • Shallow entry points
  • Adequate natural or mechanical ventilation
  • Simple and unobstructed access
  • No likely risk of flooding

Medium-risk confined spaces have:

  • Possible restricted entrances
  • Realistic expectations of a specified risk being introduced
  • Planning allows for self-rescue or non-entry rescue
  • Use of escape breathing apparatus

High-risk confined spaces have:

  • Specified risks that cannot be controlled or eliminated
  • Potential hazards such as gas leaks, mechanical/electrical faults, or the danger of igniting the atmosphere
  • Possible access issues considering rescue capabilities
  • Rescue plan must reflect this level of risk
  • Use of self-contained breathing apparatus (SCBA)

Why Confined Space Rescue Training Is Crucial

Working in confined spaces exposes individuals to various potential dangers, some of which might cause serious injury or prove fatal.

Therefore, a rescue plan is required, along with competent confined space rescue training and assessment. This training provides individuals involved in rescue and recovery activities with the skills and competencies needed to assess risk and control hazards that may endanger the safe rescue of others.

Eurosafe offers training courses that cover all areas of confined space operations, including providing all necessary equipment to ensure the safety of trained operatives. We have a mobile confined space training unit, which allows most confined space training courses to be conducted on-site.

View Confined Space Training Courses

Related Items

Confined Space Entry: Low Risk (CSC01)

Read more

Confined Space Entry: Medium Risk & Entry Controller (CSC09)

Read more

Confined Space Entry: High Risk (CSC03)

Read more
Loader Image
CBRE
Howmet
Glasdon
Savills
Essity
Ibstock
LCA Group
Hain Celestial

Keep in touch Follow us

and stay updated

  • LinkedIn
  • Facebook
  • Instagram
  • YouTube

Contact Call us

We are here to help you

0114 250 7411
SIGN UP

    Eurosafe Training & PPE Limited

    Training Academy
    Unit 51b, Dore House Industrial Estate
    Orgreave Drive
    Sheffield S13 9NR
    0114 250 7411
    training@eurosafeuk.com

    Eurosafe Group

    • United Kingdom
    • Netherlands
    • Downloads
    • FAQs
    © 2026 Eurosafe Solution Limited. All rights reserved
    • Terms & Conditions
    • Privacy Policy
    • Job Vacancies
    • Contact Us
    Website designed and built by Sheffield based marketing agency Objective Creative.