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The A4 Trial Pit Log Book is the essential field pad for geotechnical engineers and engineering geologists logging excavations on site. Designed for use during active trial pit excavations, it provides a structured preprinted format for recording all information required under BS 5930 — soil descriptions by stratum, sample locations and depths, groundwater observations, and field test results including pocket penetrometer and hand vane readings where taken.

Sized for a clipboard or site bag, the single pad format suits individual technicians who prefer to manage their own field documentation — keeping a fresh pad in their kit bag and replacing it as needed rather than drawing from a shared site supply. The A4 page size provides sufficient space for detailed soil description notes alongside the structured log fields, reducing the risk of cramped or incomplete records on complex ground profiles.

Pages are perforated for clean removal after logging, allowing individual log sheets to be submitted directly to the office or client without dismantling the pad. Compatible with standard A4 site investigation report formats for straightforward integration into factual ground investigation reports.

Key features:

• A4 format — standard UK trial pit logging size
• Preprinted BS 5930-compliant log fields
• Structured layout for strata, samples, groundwater and field tests
• Perforated pages for clean sheet removal
• Single pad — personal field supply