WallProofFind a useful next step
The guide library
Start with the task, then the material and the measurement. Seven source-based guides for UK readers.
Wall location
For drilling preparation and interpreting concealed-object signals.
Explore wall location →Moisture & timber
For understanding wall readings, timber measurements and flooring records.
Explore moisture & timber →Can you trust a wall scanner before drilling?
What a detector adds to the decision — and what it cannot establish.
Why wall materials change scanner readings
How linings, hidden metal and mixed construction complicate a scan.
%MC, %WME, REL and %RH: what is the difference?
Four familiar labels that answer different measurement questions.
Pin or pinless: understand the measurement first
Why two meters can disagree without either being a universal answer.
What does a high moisture reading in a wall mean?
A practical route from an unexplained number to better evidence.
What to record before fitting timber or a wood floor
A blank record for wood, subfloor context and the requirements that govern the job.
Checks, verification and calibration: know the difference
What a passed check establishes, and which claims it cannot support.
Keep the context with the number
All guides separate manufacturer instructions, third-party explanations and our editorial interpretation. They are not original instrument tests. Read how we select and review sources.
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