Red, Amber and Green Racking Damage Explained

Damaged racking is not a binary state. A frame with a light scuff and a frame with a 20mm bow in the front upright are both 'damaged', but one can stay in service under monitoring and the other cannot safely hold a pallet for another hour. Without a grading system, every finding becomes a negotiation between the person who spotted it and the person who has to unload the bay.

BS EN 15635 solves that by asking the operator to classify damage against measurable tolerances and to attach a defined action to each classification. The result is the traffic-light system used on every SEMA-aligned inspection report in the UK: green risk, amber risk, red risk. The colours are not a severity opinion. They are instructions with deadlines attached.

The same three grades run through the whole regime — the weekly PRRS check, the annual expert inspection, and the immediate assessment after an impact — which is what allows a warehouse manager, an inspector and an HSE inspector to read the same record and reach the same conclusion.

Green risk means the damage measured falls within the tolerances published for the component. The component remains fit for its rated load and the bay stays in service.

Green is not 'ignore'. The obligation attached to green risk is to record the location and monitor it. That matters because green damage is the early stage of amber damage, and the only way to know a defect is progressing is to have written down where it was and what it measured last time. A green finding with no bay reference is not a record — it is a note that something, somewhere, was slightly bent.

In practice, green items from an expert inspection should be transferred straight onto the weekly inspection route so the PRRS walks past them deliberately rather than by chance. If a green item measures worse at the next check, it has moved category and needs escalating.

Amber risk means the damage exceeds the green tolerance but the component is still judged capable of carrying its load safely in the short term. The action is to plan and complete the repair or replacement within a defined period — commonly four weeks — and to keep the location under closer watch until the work is done.

Amber is where most sites lose control of their regime. It carries no immediate operational pain, so it slides. The report lands, the red items get dealt with the same week, and the amber list becomes next month's problem and then next quarter's. By the time the following annual inspection arrives, some of those amber items have become red items, and the report now shows a history of known defects that were documented and not actioned — which is a materially worse position than not having known.

The fix is procedural, not technical: give every amber item an owner, a date and a purchase order, and record the completion against the item on the report. Where the right answer is genuinely replacement rather than repair, our damage repair and replacement guidance covers how that decision should be made and documented.

Red risk means the component cannot be relied on to carry load. The action is immediate: offload the affected bay, isolate it so it cannot be reloaded, and keep it out of service until the component has been repaired or replaced and the repair verified.

Immediate means immediate. Not at the end of the shift, not once the pallets have somewhere else to go. A red-rated upright has lost a significant proportion of its capacity, and a loaded bay above a compromised frame is the exact scenario that turns a damaged rack into a collapsed run. Because load redistributes through connected frames, a failure rarely stays inside the bay where it started.

On a Rackstor inspection, any red finding is raised with the site before the inspector leaves rather than waiting for the written report. That is deliberate — a red item discovered on Tuesday and communicated on Thursday is a red item that carried load for two days.

The colours are the output. The input is a set of measurements taken against the component's own geometry. For uprights, the inspector assesses out-of-straightness over a defined length, measured against a straight edge, for both the front-to-back and side-to-side planes, and distinguishes between a smooth bow and a sharp kink or dent — a localised crease matters more than a gentle curve of the same amplitude, because it concentrates the loss of section.

Beams are assessed for permanent deflection remaining after the load is removed, damage or distortion to the end connectors, sheared or missing connector welds, and missing safety clips. A beam that looks straight but whose connector has been pulled is a serious defect, because the connection is what transfers load into the frame.

Bracing is assessed for bent, detached or missing members, including members removed for access and never reinstated. Baseplates and floor fixings are assessed for anchors that are loose, missing, sheared or set into cracked slab, and for plates that have been lifted or packed unevenly. Corrosion, especially in chilled and frozen environments and around wash-down areas, is assessed as section loss rather than as cosmetic rust.

Two things are worth stressing. First, inspectors check the rear face of every frame, not just the aisle the pallets are picked from — rear-face damage from the opposite aisle is one of the most commonly missed defects on self-inspected sites. Second, a component that has been struck can be within tolerance and still be a warning: repeated impacts at the same location tell you something about traffic layout that no single measurement will.

Grading by eye. A frame that 'looks fine' can be well outside tolerance, and a frame that looks alarming can be within it. Without measurement, the classification is guesswork and the record is worthless.

Repairing damage by straightening it. Cold-straightening a bent upright does not restore its capacity — the steel has already yielded, and pushing it back changes the shape without recovering the section properties. Damaged structural components are replaced with manufacturer-compatible parts, not persuaded back into position.

Mixing components between systems. Racking systems are not interchangeable, and a beam that physically clips into another manufacturer's frame is not therefore rated for it. Repairs using mismatched components can leave a bay looking repaired while carrying an unknown capacity.

Treating the colour as the whole answer. A red item that is replaced but whose cause is never addressed will be a red item again. Where the same locations recur, look at aisle width, MHE type, pick-face position and traffic direction — and consider impact monitoring to capture what is actually happening between inspections.

Letting the load notice fall behind. If a repair changes the configuration — different beam section, changed beam pitch — the safe working loads on the wall may no longer be correct. Notices need to match the racking in front of them.

A defensible record has five things for every finding: the bay or run reference, the component, the measurement or observation, the classification, and the action with a date. Add a photograph and you have something an auditor can follow without you in the room.

Close-out is the part most often missed. When a red bay is offloaded, record when. When the replacement frame goes in, record what was fitted and by whom. When an amber item is completed, sign it off against the original report line. The point of the traffic-light system is not to produce a colour-coded list; it is to produce evidence that damage was identified, prioritised and resolved.

If you want the practical version to hand your PRRS, the racking inspection checklist walks the same ground in weekly-inspection format, and the after-impact procedure covers what to do the moment racking is struck.