1.0Tradefox | Formation en construction en lignehttps://tradefoxapp.com/frTradefoxapphttps://tradefoxapp.com/fr/author/helpbot/rich600338<blockquote class="wp-embedded-content" data-secret="jUJ23bGjVm"><a href="https://tradefoxapp.com/fr/calculators/">Calculators</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://tradefoxapp.com/fr/calculators/embed/#?secret=jUJ23bGjVm" width="600" height="338" title="« Calculators » — Tradefox | Construction Training Online" data-secret="jUJ23bGjVm" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"></iframe><script> /*! This file is auto-generated */ !function(d,l){"use strict";l.querySelector&&d.addEventListener&&"undefined"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!/[^a-zA-Z0-9]/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret="'+t.secret+'"]'),o=l.querySelectorAll('blockquote[data-secret="'+t.secret+'"]'),c=new RegExp("^https?:$","i"),i=0;i<o.length;i++)o[i].style.display="none";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute("style"),"height"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):"link"===t.message&&(r=new URL(s.getAttribute("src")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener("message",d.wp.receiveEmbedMessage,!1),l.addEventListener("DOMContentLoaded",function(){for(var e,t,s=l.querySelectorAll("iframe.wp-embedded-content"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute("data-secret"))||(t=Math.random().toString(36).substring(2,12),e.src+="#?secret="+t,e.setAttribute("data-secret",t)),e.contentWindow.postMessage({message:"ready",secret:t},"*")},!1)))}(window,document); //# sourceURL=https://tradefoxapp.com/wp-includes/js/wp-embed.min.js </script>Calculators.265 free tools for the sums trades do every day. 94 calculatorsElectricalOhm’s law, power, cables, AC, motors, lighting and testing.68 calculatorsGas and plumbingGas rates, heat input, hot water, radiators, hydraulics and drainage.42 calculatorsBricklayingBricks and blocks, mortar, setting out, arches and site maths.61 calculatorsCarpentryTimber, sheets, joinery, roofs, stairs and fixings. Know the sums. Then practise the […]