Overview

About the Calculator

This module automatically calculates wind pressure based on the address or coordinates entered in Project Defaults, in accordance with EN 1991-1-4:2005 standards. It supports the National Annexes for the United Kingdom, Sweden, Denmark, Norway, and Ireland. Additionally, Significant Orography effects are factored into the calculations automatically.

Compliant with en 1991-1-4:2005 and national annexes

Ensure your wind pressure calculations align with Eurocodes and the national annexes for the UK, Ireland, Sweden, Norway, and Denmark. With full transparency and detailed references to standards, ClearCalcs helps you meet all regulatory requirements effortlessly.

Automatically calculates rain-on-snow surcharge load

ClearCalcs Snow Load Calculator automatically calculates roof snow load including the rain-on-snow surcharge load where applicable by considering your roof pitch and horizontal distance from eave to ridge.

Detailed terrain and orography analysis

The Site Wind Pressure calculator accounts for terrain profiles in all wind sectors and orographic effects, providing you with more accurate results based on the unique topography of your site. You can also override orography parameters for custom scenarios.

Transparent equations and step-by-step explanations

Understand every aspect of your wind pressure calculations with clear, step-by-step explanations and full references to Eurocode formulas. Whether you're an experienced engineer or new to the Eurocodes, this calculator gives you confidence in your results.

Flexible and customizable input options

With the ability to override terrain or orography effects, adjust parameters, and view detailed results, this calculator offers the flexibility to match your project-specific needs. Customize the input settings for unique scenarios while keeping the calculations fully code-compliant.

Why ClearCalcs?

Frustration to Flow

See how ClearCalcs transforms structural calculations from a tedious, error-prone chore into an efficient, stress-free process.

With spreadsheets and clunky software

Frustration, fuss, and fragile formulas—the old way of engineering calculations that holds you back

Struggle with endless spreadsheets and custom formulas.

Building codes change, but outdated software and spreadsheets don’t.

Triple-check and verify manual input at every turn.

Old software feels like a maze, with unclear settings, limited templates, and rigid interfaces.

With ClearCalcs

Effortless, efficient engineering calculations at your fingertips.

100+ pre-built calculators for different materials.

Every calculation comply with the latest codes and standards.

Forget the worry of “black box” calculations; verify calculators with inline formulas, codes, and checks.

Intuitive tools built to your workflow, plus unmatched customer support.

How It Works

Your code-compliant calculator

Tired of complex calculations? ClearCalcs Calculator Library keeps it simple, secure and code-compliant – so you can calculate with confidence.

Save time with ready-to-use templates for wood, steel, and concrete

ClearCalcs offers an extensive library of easy-to-use calculators for beams, columns, and footings, designed to make structural calculations simpler and faster.

Choose from a wide range of pre-configured beam and column options, complete with automatic member sizing, so you can quickly reach reliable designs and reduce rework.

Beams

Columns

Foundations

Walls

Loads

Dynamically track your load paths from roof to foundation

No need to copy and paste reactions between calculations! If the top calculator's reactions change, the loads being inherited onto the lower calculator will update automatically. This includes all loads such as dead, live, snow, seismic, and wind.

Submit professional reports for permit review

ClearCalcs is not only easy to use, but also easy to check! All calculations follow an easy to understand traffic light check system, with multiple levels of detail available giving you the choice of printing every step of the calculation and all code and standard references, or simply a compact, one-page print out.

Report heading includes your project name and address

Easily upload your organization logo for a professional report

Use custom PDF upload to merge additional documents to your structural calculations

Download a sample report



Site Wind Pressure Calculator to EN 1991-1-4:2005