Frequently asked questions
The questions we hear most, answered properly. Can't find yours? Call +44(0)203 790 7877 or send us an enquiry — we're happy to talk through an installation before you buy anything.
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What is a GRP enclosure?
Glass Reinforced Plastic explained — what GRP actually is, how enclosures are made, and why the material suits electrical equipment.
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GRP vs steel enclosures — which should I choose?
The honest comparison: corrosion, weight, security, fire, lifespan and cost, including where steel genuinely wins.
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What are RAL colours?
The complete guide for specifiers: how the codes work, the full 216-colour RAL Classic chart with LRVs, and RAL vs British Standard equivalents.
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What are British Standard colours?
BS 4800 and BS 381C charted in full — how the hue-greyness-weight codes work, the famous service colours, and how BS sits alongside RAL.
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Which GRP enclosure suits a distribution board?
Matching the cabinet to the board — single door, double door, floor standing or walk-in, and the measurements to check first.
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How big do GRP enclosures go?
Walk-ins up to a full two-metre cube as standard, pre-fitted electrical variants — and bespoke sizes built to your specification.
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Why use GRP at all?
The case for GRP cabinets: long lasting, heat resistant, no rust, no rot, no painting.
Site updates
Earlier updates from us, kept for reference: