Volex Labs / Calculations / Timber beam design to Eurocode 5.

Timber beam design to Eurocode 5.

Check a sawn or glulam beam in seconds: Volex applies the service class and load-duration factors (kmod from EC5 Table 3.1), the system and depth factors, and returns bending, shear, bearing and creep-adjusted deflection with the governing utilisation highlighted.

Strength classes come from EN 338 (C16, C24 and up) and the checks follow EC5 §6.1 with the UK National Annex. Rafter, joist, and stud wall variants are dedicated modules — each validated against published examples.

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What Volex checks

Validated against the published example

C24 100×200 simple beam, 4 m span, MEd = 5 kNm EC5 §6.1.6, kmod per Table 3.1; EN 338 Table 1
QuantityPublishedVolexError
Utilisation0.5080.50780.04%
f_m,d14.77 MPa14.77 MPa0.00%
This case is one of 359 published checks the platform passes — the full table, with every source and every error, is public at volexlabs.com/verification.

Frequently asked

Which timber grades are supported?
The EN 338 softwood classes (C14–C30, including C16 and C24 used in UK practice) plus glulam. Properties are taken directly from EN 338 Table 1.
Does it handle service classes and load duration?
Yes — kmod is selected from EC5 Table 3.1 for the service class and duration you specify, and kdef is applied to the creep portion of deflection per §7.2.
Can it check rafters and floor joists?
Yes — dedicated rafter/joist modules include the imposed and snow load cases and spacing effects (ksys), validated against published rafter examples.
Is it free to try?
Yes — 10 calculations a month on the free tier, clause-referenced on screen. PDF calc sheets come with Pro at £29/month.

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