8 min readReviewed 24 August 2026
How to calculate labour cost for a construction quote
A practical method for turning wages, employment overheads, productive hours and project risk into a labour figure you can defend in a quote.
Read guideByteflow Software Guides
Useful answers before a product pitch.
These guides cover the practical problems behind our products: quoting and job costing for trade businesses, plus WordPress and Gutenberg workflows. They are written to be useful even if you never use Byteflow software.
Quoting & job costing
Quoting and job-costing guides
Practical methods for building, checking and improving estimates and quotes.
7 min readReviewed 24 August 2026
Markup vs margin: the difference that changes your quote
Markup and gross margin are not interchangeable. This guide explains both calculations and shows how the wrong formula can quietly reduce profit.
Read guide7 min readReviewed 24 August 2026
Quote vs estimate: how to make the scope clear to a customer
A practical guide to separating fixed-price commitments from early-stage estimates, assumptions and scope changes.
Read guide9 min readReviewed 24 August 2026
Construction quote checklist: what to include before you send it
A field-tested structure for checking scope, quantities, labour, exclusions and commercial details before a quote leaves your business.
Read guide8 min readReviewed 24 August 2026
Job costing spreadsheet vs software: when to move on
Spreadsheets are flexible and familiar. This guide explains the warning signs that quoting and job costing have outgrown a workbook.
Read guide7 min readReviewed 24 August 2026
How to build a reusable quote template without copying old mistakes
Reusable templates can speed up repeat work, but only if scope, quantities and assumptions remain visible and editable.
Read guideWordPress & Gutenberg
WordPress and Gutenberg guides
Technical guidance for creating, maintaining and standardising reusable block-based content.
9 min readReviewed 24 August 2026
Gutenberg custom blocks explained: what WordPress stores and renders
Understand block definitions, attributes, saved markup and dynamic rendering before choosing how to build a custom Gutenberg block.
Read guide8 min readReviewed 24 August 2026
Gutenberg patterns vs custom blocks: choosing the right reusable tool
Patterns, synced content and custom blocks solve different reuse problems. Choose based on structure, editing freedom and data requirements.
Read guide9 min readReviewed 24 August 2026
A practical guide to WordPress block attributes
How to model strings, booleans, selections and repeated data so Gutenberg blocks remain predictable as they evolve.
Read guide8 min readReviewed 24 August 2026
Can you create custom Gutenberg blocks without writing React?
What low-code block builders can handle well, where custom code still matters, and how to decide which route fits a WordPress project.
Read guide8 min readReviewed 24 August 2026
Making custom Gutenberg blocks portable between WordPress sites
A checklist for moving block definitions, templates, styles and dependencies between development, staging and client sites.
Read guide8 min readReviewed 24 August 2026
Gutenberg block performance: keeping custom blocks lightweight
Practical ways to avoid loading unnecessary JavaScript, CSS and data on every page just because a custom block exists somewhere on the site.
Read guide9 min readReviewed 24 August 2026
How WordPress agencies can standardise Gutenberg blocks across client sites
A maintainable approach to shared block conventions, templates, naming and portability without forcing every client site into the same design.
Read guideEditorial approach
How we approach these guides
Byteflow Software builds CostForge and BF Blocks, so some guides naturally overlap with problems those products address. We keep the explanation useful on its own and avoid treating a product mention as the answer.
Guides are reviewed for clarity and practical usefulness and show their most recent review date. Where a topic depends on a contract, jurisdiction, accounting treatment or other professional judgement, the guide describes a practical framework rather than presenting individual professional advice.