Illustration of crane lifting test weights at an industrial site for load testing and safety inspection.

Test Weight Hire & LOLER: How to Stay Safe and Compliant in the UK

Julie Marshall / 18th December 2025 / Test Weights

When you work with cranes, hoists or any form of lifting equipment, safety and compliance are absolutely essential. Whether you’re managing a busy site or preparing for an annual audit, ensuring your equipment is properly tested and certified is a legal requirement under LOLER.

One of the most important parts of this process is using the correct certified test weights during load testing. These weights verify that your equipment can safely handle its declared Safe Working Load (SWL) and operate reliably in real-world conditions.

This guide explains why test weights matter, what LOLER requires, and how hiring certified test weights can keep your lifting operations safe, compliant and audit-ready.

What Are Test Weights?

Test weights are calibrated, certified loads used to check the performance of lifting equipment. They allow a competent person to simulate real lifting conditions and assess whether the equipment:

  • Lifts and lowers smoothly
  • Holds the load safely
  • Meets its stated SWL
  • Shows no signs of wear, instability or component failure

By using certified test weights, engineers can carry out accurate, repeatable testing that meets recognised industry standards.

When Are Test Weights Required Under LOLER?

Under LOLER (Lifting Operations and Lifting Equipment Regulations 1998), lifting equipment must be strong, stable and thoroughly examined at required intervals by a competent person. Test weights may be required during:

  • Initial load testing of new equipment
  • 6-month or 12-month LOLER Thorough Examinations, depending on the equipment type
  • Post-repair or post-modification testing
  • Proof load tests for cranes, hoists and lifting accessories
  • End-of-year compliance audits, where documented evidence of performance is essential

Using certified test weights removes uncertainty and ensures inspections meet strict legal standards.

Types of Test Weights Used for Load Testing

Different lifting scenarios require different types of test weights. Common options include:

  • Steel calibrated weight blocks – durable and accurate
  • Concrete-filled weights – ideal for heavier loads
  • Modular, stackable weights – versatile for a range of SWLs
  • Water-filled bags – useful where transportation weight needs to be minimised

Hiring test weights gives you access to the exact type and size required for your equipment and testing schedule.

Why Hiring Test Weights Is Often the Best Option

For many organisations, test weight hire is the most practical, cost-effective way to stay compliant. Reasons include:

  • No need for long-term storage or transport of heavy weights
  • Access to a wide range of weight sizes
  • Guaranteed calibration and certification
  • Safer handling by experienced professionals
  • Ability to scale up or down depending on the inspection requirements

Hiring also helps avoid delays – a major advantage during busy audit periods.

Preparing for Year-End Compliance Audits

As businesses approach end-of-year reviews, it’s essential to check that all LOLER examinations are up to date. You can stay ahead by:

  • Scheduling LOLER Thorough Examinations early
  • Arranging any required test weight hire in advance
  • Ensuring all certification and records are complete
  • Addressing any maintenance or repair needs proactively

Good preparation minimises downtime and keeps lifting operations running smoothly into the new year.

How JT Cranes Supports LOLER Compliance

At JT Cranes, we supply certified test weights for hire across the UK to support safe and compliant lifting operations. Our service includes:

  • A full range of calibrated weights
  • Delivery and collection
  • Support from experienced lifting engineers
  • Guidance on LOLER requirements and load testing

Whether you’re preparing for a routine inspection or a detailed audit, we can provide the right equipment and expertise to help you stay compliant.

Planning a LOLER inspection? Need test weights for load testing? Get in touch with the JT Cranes team – we’re here to help.

FAQs About Test Weights & LOLER

Do all LOLER inspections require test weights?

Not always. Test weights are required when a competent person needs to perform load testing to verify performance, stability or SWL.

Do test weights have to be certified?

Yes, they must be calibrated and traceable to ensure accurate and compliant testing results.

Can I hire test weights for cranes and hoists?

Absolutely. Test weight hire is widely used for cranes, hoists, lifting accessories and gantry systems across all industries.