A stillage is only as safe as its last inspection. When steel handling equipment is loaded, stacked, lifted and moved day after day, wear is inevitable — and a container that looked sound last month can develop cracked welds, distorted feet or fatigued lifting points that only a proper test will reveal. Regular load testing is how UK operators prove their stillages, cages and pallets are still fit to carry the loads they were built for, and how they stay on the right side of workplace safety law.
This guide explains what load testing involves, which UK regulations apply, how often testing should happen, and what good documentation looks like — so you can build a testing routine that protects your people and your product.
Why load testing matters
Load testing verifies that a stillage can safely carry, distribute and — where relevant — be lifted with its rated working load, without deforming, cracking or failing. It is not a one-off box-tick at the point of manufacture; it is an ongoing check on equipment that is constantly exposed to impact, corrosion and heavy cyclic use.
- Safety of people: a failed stillage in a stacked block or during a forklift lift can cause serious crush injuries. Testing catches weakness before it becomes an incident.
- Protection of product: a collapse rarely damages just one container — it can take out everything stacked above and around it.
- Legal compliance: UK employers have a duty to ensure work equipment is suitable, maintained and safe to use. Load testing and inspection are central to demonstrating you have met that duty.
- Continuity: planned testing prevents the unplanned downtime, quarantines and write-offs that follow an in-service failure.
The UK regulations that apply
Two pieces of UK legislation are most relevant to stillages, cages and similar load-bearing equipment. Both remain in force and set out ongoing duties, not one-time requirements.
PUWER 1998
The Provision and Use of Work Equipment Regulations 1998 (PUWER) apply to virtually all work equipment, including static stillages, cages, post pallets and trolleys. PUWER requires that equipment is suitable for its intended use, kept in good repair, and inspected where its safety depends on the installation conditions or where it is exposed to conditions causing deterioration. For most operators, that translates into a regime of routine inspection and load verification. Lowe’s PUWER explainer covers how these duties apply specifically to handling equipment.
LOLER 1998
The Lifting Operations and Lifting Equipment Regulations 1998 (LOLER) add further duties whenever equipment is used to lift a load — which includes any stillage lifted by crane, forklift tines through fork pockets, or dedicated lifting eyes. LOLER requires that lifting equipment is of adequate strength, marked with its safe working load, and subject to thorough examination by a competent person at set intervals. For a deeper walkthrough of how LOLER applies to lifted stillages and cages, see Lowe’s LOLER guide for stillages and cages.
Design standards and static load testing
Beyond the regulations, recognised standards inform how tests are designed. ISO 8611 sets out methods for load testing pallets and load-carrying devices, and static load testing is a common approach for evaluating a stillage’s structural integrity under a sustained, controlled load. Standards like these tell you how to test; the regulations tell you why and how often. For where certification sits in all this, our range of certified lifting stillages is designed and tested to be lift-ready from the outset.
How often should you load test?
There is no single interval that fits every operation. The right frequency depends on how hard the equipment works, the environment it lives in, and the consequences of a failure. Sensible practice combines scheduled thorough examinations with more frequent routine checks.
- Usage intensity: fast-paced production equipment such as kitting trolleys takes constant knocks and should be checked more often and under varied load conditions than equipment used occasionally.
- Load type and value: storage such as IBC racks and dollies carrying full 1,000-litre IBCs must be verified against the real weight of a filled tank, not a nominal figure.
- Environment: outdoor, wet, coastal or chemically exposed use accelerates corrosion and warrants closer monitoring.
- Lifting vs static: anything lifted falls under LOLER’s thorough-examination regime and its defined intervals; static-only equipment is governed by the inspection regime you set under PUWER.
As a baseline, many operators pair an annual or manufacturer-recommended load test with regular visual pre-use checks. Always follow the manufacturer’s guidance and adjust upwards where usage or risk demands it.
What a proper load test involves
A credible test is repeatable, controlled and carried out by competent people using calibrated equipment. The essentials are consistent regardless of the container type.
- Realistic test load: apply a load equal to — or, for a proof test, greater than — the expected maximum working load, so the container is proven against genuine service conditions.
- Even weight distribution: assess how the load spreads across the frame and base. Uneven loading concentrates stress on specific joints and feet and is a common cause of instability and failure.
- Controlled application: apply the load gradually, hold it for a specified duration, then inspect for deformation, cracked welds, movement at joints or any sign of yielding.
- Structural inspection: check the frame, base, lifting points and feet — the areas that carry and transfer the load — before, during and after the test.
- Material integrity: the base metal matters as much as the design. Consistent, specified steel grade and quality underpin predictable, safe performance.
- Competent testers: tests should be carried out by trained personnel who understand what a pass or fail looks like and can interpret the results.
Documentation and record keeping
A test only counts if you can prove it happened. Good records demonstrate compliance to auditors and insurers, and give you a maintenance history that flags equipment approaching the end of its life. Each record should capture:
- The date of the test and the item’s unique identifier.
- The applied load and the duration it was held.
- The method or standard followed and the equipment used.
- Any deformation, defects or observations noted.
- The clear pass/fail outcome and any remedial action required.
- The name of the competent person who carried out or examined the test.
Keep these records accessible and up to date. A consistent paper trail turns testing from a cost into an asset — it protects you if a failure is ever investigated and helps you plan replacements before something breaks.
Buying equipment that’s tested from the start
The simplest way to stay compliant is to buy equipment engineered and tested for its intended duty. Lowe manufactures to specification and can supply load-tested containers where your application calls for it — for example, our Liftable Sheeted Stillage comes with load testing included. If your load path or handling method changes, retesting keeps that certification meaningful. For more background on the purpose and value of testing, see our overview: Why Carry Out Load Testing?
Keep your stillages safe and compliant
Load testing is a straightforward, cost-effective way to protect your people, safeguard your product and evidence your compliance with PUWER and LOLER. Build it into a routine of regular inspection, test to realistic working loads, keep clear records, and act on anything the tests reveal.
Need equipment that’s built and tested for the job — or advice on the right testing approach for your operation? Get a quote or contact the Lowe team to discuss your requirements.