Pergola structural calculation for bioclimatic and fabric pergolas
A pergola looks small, but snow, wind uplift and overturning are not. We prove the safety of louvred, bioclimatic and fabric pergolas under snow and wind, for single projects or whole product ranges.
Why it matters
Most pergola failures start in three places: excessive deflection of beams or louvres under snow, anchors pulled out at the post base by wind uplift, and weak fixings to the host wall. Catalogue span tables do not always capture these effects.
We calculate for the actual site snow and wind zone, open and closed louvre positions and side enclosures such as glass or zip screens, using the Eurocodes and the national annex of the project country.
Systems
- Bioclimatic (rotating louvre) pergolas
- Fabric and PVC roof pergolas
- Glass roof pergolas
- Wall-mounted and freestanding systems
- Pergolas with zip screens or glass sliding walls
Standards
- EN 1991-1-3
- EN 1991-1-4
- EN 1999-1-1
- EN 1992-4
- EN 13561 / EN 13659
Quick quote
Send drawings and the project address; we will define the scope together.
Send project details WhatsAppWhat we check
Snow load
Ground snow load by zone and altitude, roof shape and drifting.
Wind load
Canopy pressure coefficients, internal pressure with side enclosures, uplift.
Beams and louvres
Bending, shear, deflection and louvre support capacity.
Posts and stability
Buckling, sway and overturning.
Post base and foundation
Base plates, anchors and foundation sizing.
Wall fixings
Anchor selection for concrete, brick or aerated concrete walls.
Information for a quote
- Dimensions and post positions
- Profile data
- Project address
- Wall or foundation details
- Side enclosure details
Deliverables
- Pergola structural report in English
- Maximum spans for the given snow and wind
- Post base, anchor and foundation recommendations
- Span tables for manufacturers
Pergola Structural Calculation
Can you prepare span tables for a product range?
Yes. We prepare span and post spacing tables by snow and wind zone so your sales team can select the right model for each project quickly.
Do you work on projects in Germany and France?
Yes. We prepare English-language reports to the Eurocodes and national annexes for projects across Europe.
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Details →Let’s talk about your project
Send drawings, elevations and system information; we will define the scope and timeline and get back with a quote.