Resources

Interactive calculator and reference tables for pipe gradients, bedding classes, and access point spacing. Everything from Approved Document H in one place.

Interactive cut and fill volume calculator, soil bulking and compaction factors, disposal tonnage estimator, and CBR reference table for UK groundworkers.

Visual pathway guide from no card to Gold Supervisor. Costs, timelines, NVQ routes, plant cards, and the June 2026 EUSR changes explained.

Interactive decision flow for registration, levy calculation, and grant claims under the January 2026 restructure. Worked examples for small firms.

Interactive take-home pay calculator, CIS deduction rates explained, and a self-employed vs limited company decision flow with real construction day rates.

Interactive reference tool for UK EV charging installations. Cable specs, substation thresholds, groundworks scope, DNO connection timelines, and regulatory checklists by charger power tier.

Interactive CDM 2015 induction checklist, 20 toolbox talk topics with HSE prosecution examples, RIDDOR quick reference, and seasonal safety considerations.

Application selector, exposure classes, cover depths, reinforcement weights, and slump guidance. Everything from BS 8500 that a site agent needs on one page.

BS 5975 duty holder roles, excavation support selector, inspection checklists, and permit templates. The practical compliance tool for TWCs and site supervisors.

EN standard decoder, task-based PPE selector, hard hat replacement lookup, and the April 2022 employer-pays rule. What to spec and what to refuse when the PPE rep calls.

Interactive foundation depth estimator for shrinkable clay near trees. D/M ratio, tree water demand, soil shrinkability, and risk zone per NHBC Standards 4.2 and BRE Digest 240.

Calculate Vp from percolation test results, size a soakaway from drained area, and check septic drainage field suitability per BRE Digest 365 and Approved Document H2.