PDF · 523 KB
X-Grid Technical & Installation Guide
The full technical and installation guide as published: panel data, build-ups, the installation sequence and application guidance.
Download PDFMade in the UK from 100% recycled polypropylene
Made in the UK from 100% recycled polypropylene
Understand what the 428 t/m² figure means, how it was measured, and why testing conditions matter when you compare products.
The test figure
X-Grid’s compression test result of 428 tonnes per square metre is measured on an unfilled panel — no gravel, no grass, no infill. The test follows DIN 38412 and was conducted by an independent laboratory.This matters because many competitor figures you will see are measured with the cells filled with aggregate. A filled cell distributes load through the stone inside it, which will almost always produce a higher number than an unfilled test.
Filling matters
When a grid cell is filled with angular aggregate, the stone inside the cell takes load through the cell walls. This is how the system works in service — the stone spreads the load.But it also means that filled test results are not directly comparable with unfilled results. An unfilled test measures the plastic structure alone; a filled test measures the structure plus the aggregate inside it.
Our documentation
We believe you should see the actual test data, not just a marketing claim. The following documents are available:
PDF · 523 KB
The full technical and installation guide as published: panel data, build-ups, the installation sequence and application guidance.
Download PDFPDF · 3 MB
Product overview, panel specification and the colour range in the published product guide format.
Download PDFPDF · 7 MB
The printed case-study brochure: domestic driveways, commercial car parks, camping and leisure, and equestrian projects in full.
Download PDFPDF · 3 MB
Original independent laboratory report. Findings have not been rewritten or modified.
Download PDFProduct specification
Panel dimensions
Panel depth
Open structure
Compression resistance (unfilled)
Recycled polypropylene
Wall thickness
Interlocking connection
Temperature range
Comparing products
Before any grid’s compression number — ours or a competitor’s — earns a place in a specification, five questions settle whether it means anything. What condition was the panel tested in: filled or unfilled? Which method was followed — is a standard such as DIN 38412 named, or is the figure unsourced? Who ran the test: an independent laboratory or a marketing department? When was it tested, and is the date published? And can you actually see the report, or only the number?A figure that fails one of those questions is not necessarily wrong — but it is not evidence, and it should not be set against a figure that passes all five. That is the whole basis of the comparison page: like for like, conditions stated, documents archived.The same checklist reads across every table of specifications. A grid claiming twice the load of X-Grid may simply be quoting a filled test against our unfilled one; a figure with no method named may come from a brochure rather than a laboratory. Asking the five questions costs nothing and sorts datasheets from marketing within minutes.
Open about the gaps
One piece of work is in progress and it is not finished: a formal service-life statement is being prepared through written technical approval. Until it exists we publish the material evidence — inert recycled polypropylene with a −50 °C to +90 °C working range, and installations documented in service for years — rather than an invented number of years. When the statement completes, it will be published in the technical downloads, including anything that makes awkward reading. Evidence-first publishing means publishing the gaps too.