The Five Minute LCA

This is an ambitious attempt at running a 5 minute LCA in the software to show you just how quickly a carbon footprint can be calculated. Have a look at this first to understand the process and then move onto our software introduction video to get started.

Preparing for an LCA

In this video, we explore how much detail is needed to get the assessment going. The project detail request form is a spreadsheet that will be sent to clients at the start of an assessment, but it’s also a useful guide for software users to see what information they need to hand before starting their own LCA.  It can be downloaded here.

An eTool LCA in under 5 minutes


Some people think that LCA is only for IT techs and engineers, but we beg to differ.

We’ve made our software free, easy to use and online so it’s completely accessible to everyone!

We wanted to show you just how quick it is to create an assessment for your building design, so we set Rich the task of putting together an LCA on a granny flat in under 5 minutes.

Check out our video to see if he managed it…

Using our handy templates, Rich was able to assess a simple home design and calculate both the total carbon and energy across the entire design life of the building in the following areas: materials, assembly, transport, recurring and operational.

This LCA was based on an average granny flat design with the following building specifications –

Floor Area: 60m2
Roof Area: 77m2
External Wall Area: 66m2
Internal Wall Area: 17m2
Glazed Area: 11m2
Internal Wall Paint Area: 100m2
Tiled Floor Area: 15m2
Tiled Wall Area: 5m2
Living Floor Area: 45m2

Sign up to eTool LCA today and give it a go!
Whether you already have a design to try or just want to look at the environmental impact of different materials and methods, you can find all the information in our software here.

Software Introduction

The Problem



One of our favourite graphics explained!


Information gathering


The first step in any LCA is retrieving the information that you would like to model. You can download our information request example here 00 PDR V7.7 IMPACT Information requirements


Cut-off Rules


Knowing when to say when is a crucial part of effective LCA modelling


Initial Model Set-up


Setting up the basic project, structure and model hierarchy.


Advanced Usage of Templates


The most effective method for building up your LCA model is using templates.


How to record Recommendations in eToolLCD.


Where the fun really begins!


How to use the bulk swap function in eToolLCD.


Handy function for running materials swap recommendations


How to use expressions in eToolLCD



How to make improvements to your eToolLCD design.



How to generate Reports in eToolLCD