Carpentry
October 26, 2026 · 8 min read
Carpentry
Carpentry guides.
Framing, timber and the finishing details.
Stud wall spacing400 vs 600mm centres, noggin rules and fixings.
C16 vs C24 timberStrength grades and when to use each one.
Carpentry joints explainedFrom butt, lap and housing joints to dovetails.Framing and first fix
Timber and sheet materials
Second fix and joinery
Calculators.
Free carpentry calculators with textbook equations and the working shown.
Questions.
Should studs be at 400mm or 600mm centres?
Both are common in the UK, because both line up with standard 1200mm-wide plasterboard. 400mm centres give a stiffer wall and are the better choice for tiling or heavy wall fixings.
What’s the difference between C16 and C24 timber?
They are strength classes for structural softwood. C24 is the stronger grade, so it can span further or carry more load at the same size than C16.
How do I become a carpenter in the UK?
The most common route is an apprenticeship, where you work for an employer and study towards a qualification at the same time. You can also take a college course first, or gain an NVQ while working on site.
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