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Construction resources: guides, tools and advice

Everything to run your construction business day to day: trade articles, step-by-step guides, calculators and a help center. Read, calculate, apply — no detours.

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Resource center

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Latest articles

Regulation7 min15/01/26

2026 e-invoicing: the checklist for construction businesses

Compliance6 min10/02/26

Workplace risk assessment in construction: best practices in 2026

Management8 min05/03/26

How to set your hourly rate in construction (method and calculation)

CalculatorMargin calculator

Cost price

18 600 €

Sale price

25 980 €

Margin

28,4 %

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Featured content

The topics that come up most on your job sites

Four themes cover the essentials. For each one: an article that explains, a guide that goes into detail and, where it helps, a calculator that runs the number.

Free calculators

Work out your hourly rate or your margin in 30 seconds

Two free tools, no sign-up: enter your figures, read the result, then carry it into a quote.

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One email a month: quoting, e-invoicing, jobsite cash flow. Practical stuff for tradespeople, nothing else.

Frequently asked questions

Yes. The blog, practical guides, calculators and help center are open to read, with no account or subscription required.

About Constrigo

Construction resources: inform, calculate, learn

Finding reliable information about running a construction business often takes longer than the job itself. This construction resources hub brings together, in one place, the content that matters day to day for a tradesperson or the owner of a small or mid-sized firm: a blog that breaks down regulation and industry news, practical guides that walk through sensitive tasks step by step, free calculators to work out a figure without a spreadsheet, and a help center to move forward on your own. The blog covers concrete topics: the VAT rate that applies to a given type of work, retention guarantees, 2026 e-invoicing, job-site management and answering public tenders. The practical guides turn each topic into a procedure: building a compliant quote, tracking progress billing, organizing your administrative documents. The calculators handle the recurring math — margin, labor hourly cost, VAT, retention guarantee — so you can decide fast, on site as well as at the office. The goal stays simple: less time spent searching, more time on the job site. Every resource links to the others, from blog to guide and from guide to calculator, so you find a complete answer without juggling tabs or repeating the same searches. From a first quote to a closed retention guarantee, the relevant guide, calculator and article are always a click away.

Turn resources into action

The guides explain the method; the Constrigo software does it for you — quotes, invoices, job-site tracking.

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