The largest selection of prefabricated container style homes in Canada

`); w.document.close(); } systemEl.addEventListener('change', setSystemUI); setSystemUI(); printBtn.addEventListener('click', openPrintWindow); calcBtn.addEventListener('click', function(){ const type = typeEl.value, vals = getValues(); if (!type || !vals) { alert('Please select foundation type and enter all dimensions before calculating.'); return; } const length = vals.lengthFeet, width = vals.widthFeet, depth = vals.depthFeet, volume = length * width * depth; let materialRate, laborRate, typeLabel; if (type === 'slab') { materialRate = settings.slabMaterial; laborRate = settings.slabLabor; typeLabel = settings.labelSlab; } else { materialRate = settings.foundationMaterial; laborRate = settings.foundationLabor; typeLabel = settings.labelStandard; } const materialCost = volume * materialRate, laborCost = volume * laborRate, totalCost = materialCost + laborCost; if (landingImageBox) landingImageBox.style.display = 'none'; previewBox.style.display = 'block'; resultsBox.style.display = 'block'; printBtn.style.display = 'inline-block'; if (type === 'slab') renderSlabTopView(vals); else renderFoundationTopView(vals); output.innerHTML = ''; }); })();