{"id":2944,"date":"2026-10-20T12:44:10","date_gmt":"2026-10-20T11:44:10","guid":{"rendered":"https:\/\/wpcalc.com\/pt\/vida\/calculadora-de-drywall\/"},"modified":"2026-10-20T12:44:10","modified_gmt":"2026-10-20T11:44:10","slug":"calculadora-de-drywall","status":"publish","type":"post","link":"https:\/\/wpcalc.com\/pt\/vida\/calculadora-de-drywall\/","title":{"rendered":"Calculadora de drywall"},"content":{"rendered":"<section class=\"not-prose calculator-box\" aria-labelledby=\"calculator-title\"><div class=\"flex items-baseline sm:items-center justify-between gap-2 sm:gap-3\"><div class=\"flex flex-col sm:flex-row sm:items-center gap-2\"><span class=\"icon icon-calculator text-primary-700! text-base! dark:text-primary-300!\" aria-hidden=\"true\"><\/span><h2 id=\"calculator-title\" class=\"text-lg font-display font-bold\">Estime chapas e materiais de drywall para um c\u00f4modo<\/h2><\/div><div class=\"calcdash-favorite group\">\n  <button type=\"button\" class=\"favorite\" id=\"favorite\" data-favorite-id=\"2944\" data-favorite-title=\"Drywall\" data-favorite-url=\"https:\/\/wpcalc.com\/pt\/vida\/calculadora-de-drywall\/\" data-favorite-excerpt=\"Estime a quantidade de placas de drywall, massa de jun\u00e7\u00e3o, fita, parafusos e o custo das placas para uma sala retangular. Informe as dimens\u00f5es da sala, os v\u00e3os, o tamanho da placa e a margem de desperd\u00edcio.\" aria-label=\"Adicionar aos favoritos\" data-favorite-icon=\"icon icon-eco-home\">\n    <span class=\"icon icon-shape-star-empty\" aria-hidden=\"true\"><\/span>\n  <\/button>\n  <div class=\"calcdash-favorite__tip\" aria-hidden=\"true\">\n   <span class=\"favorite-tooltip\" id=\"favorite-tooltip\"><\/span>\n  <\/div>\n  <span class=\"sr-only\" role=\"status\" id=\"favorite-status\"><\/span>\n<\/div><\/div><form action=\"https:\/\/wpcalc.com\/pt\/vida\/calculadora-de-drywall\/\" method=\"POST\" class=\"calculator\" id=\"calculator-2944\" data-post=\"2944\"><fieldset class=\"fieldset-input is-2\"><legend class=\"sr-only\">Campos de entrada<\/legend><div class=\"field\" id=\"input-1\"><label for=\"field-1\">Comprimento do c\u00f4modo<\/label><div class=\"field-group\"><input type=\"text\" name=\"comprimento_do_cmodo\" id=\"field-1\" data-number inputmode=\"decimal\" autocomplete=\"off\" spellcheck=\"false\" min=\"0\" value=\"12\"\/><div class=\"grid grid-cols-1\"><select id=\"field-2\" name=\"unidade_de_comprimento\" aria-label=\"Unidade de comprimento\"><option value=\"ft\" selected>ft<\/option><option value=\"m\">m<\/option><\/select><svg class=\"pointer-events-none col-start-1 row-start-1 mr-2 size-5 self-center justify-self-end text-gray-500 sm:size-4\" viewBox=\"0 0 16 16\" fill=\"currentColor\" aria-hidden=\"true\" data-slot=\"icon\">\n              <path fill-rule=\"evenodd\" d=\"M4.22 6.22a.75.75 0 0 1 1.06 0L8 8.94l2.72-2.72a.75.75 0 1 1 1.06 1.06l-3.25 3.25a.75.75 0 0 1-1.06 0L4.22 7.28a.75.75 0 0 1 0-1.06Z\" clip-rule=\"evenodd\" \/>\n            <\/svg><\/div><\/div><\/div><div class=\"field\" id=\"input-2\"><label for=\"field-3\">Largura do c\u00f4modo<\/label><div class=\"field-group\"><input type=\"text\" name=\"largura_do_cmodo\" id=\"field-3\" data-number inputmode=\"decimal\" autocomplete=\"off\" spellcheck=\"false\" min=\"0\" value=\"10\"\/><div class=\"grid grid-cols-1\"><select id=\"field-4\" name=\"unidade_de_largura\" aria-label=\"Unidade de largura\"><option value=\"ft\" selected>ft<\/option><option value=\"m\">m<\/option><\/select><svg class=\"pointer-events-none col-start-1 row-start-1 mr-2 size-5 self-center justify-self-end text-gray-500 sm:size-4\" viewBox=\"0 0 16 16\" fill=\"currentColor\" aria-hidden=\"true\" data-slot=\"icon\">\n              <path fill-rule=\"evenodd\" d=\"M4.22 6.22a.75.75 0 0 1 1.06 0L8 8.94l2.72-2.72a.75.75 0 1 1 1.06 1.06l-3.25 3.25a.75.75 0 0 1-1.06 0L4.22 7.28a.75.75 0 0 1 0-1.06Z\" clip-rule=\"evenodd\" \/>\n            <\/svg><\/div><\/div><\/div><div class=\"field\" id=\"input-3\"><label for=\"field-5\">Altura da parede<\/label><div class=\"field-group\"><input type=\"text\" name=\"altura_da_parede\" id=\"field-5\" data-number inputmode=\"decimal\" autocomplete=\"off\" spellcheck=\"false\" min=\"0\" value=\"8\"\/><div class=\"grid grid-cols-1\"><select id=\"field-6\" name=\"unidade_de_altura\" aria-label=\"Unidade de altura\"><option value=\"ft\" selected>ft<\/option><option value=\"m\">m<\/option><\/select><svg class=\"pointer-events-none col-start-1 row-start-1 mr-2 size-5 self-center justify-self-end text-gray-500 sm:size-4\" viewBox=\"0 0 16 16\" fill=\"currentColor\" aria-hidden=\"true\" data-slot=\"icon\">\n              <path fill-rule=\"evenodd\" d=\"M4.22 6.22a.75.75 0 0 1 1.06 0L8 8.94l2.72-2.72a.75.75 0 1 1 1.06 1.06l-3.25 3.25a.75.75 0 0 1-1.06 0L4.22 7.28a.75.75 0 0 1 0-1.06Z\" clip-rule=\"evenodd\" \/>\n            <\/svg><\/div><\/div><\/div><div class=\"field\" id=\"input-4\"><label for=\"field-7\">Incluir teto<\/label><div class=\"grid grid-cols-1\"><select id=\"field-7\" name=\"incluir_teto\"><option value=\"yes\" selected>Sim<\/option><option value=\"no\">N\u00e3o<\/option><\/select><svg class=\"pointer-events-none col-start-1 row-start-1 mr-2 size-5 self-center justify-self-end text-gray-500 sm:size-4\" viewBox=\"0 0 16 16\" fill=\"currentColor\" aria-hidden=\"true\" data-slot=\"icon\">\n              <path fill-rule=\"evenodd\" d=\"M4.22 6.22a.75.75 0 0 1 1.06 0L8 8.94l2.72-2.72a.75.75 0 1 1 1.06 1.06l-3.25 3.25a.75.75 0 0 1-1.06 0L4.22 7.28a.75.75 0 0 1 0-1.06Z\" clip-rule=\"evenodd\" \/>\n            <\/svg><\/div><\/div><div class=\"field\" id=\"input-5\"><label for=\"field-8\">N\u00famero de portas<\/label><input type=\"text\" name=\"nmero_de_portas\" id=\"field-8\" data-number inputmode=\"decimal\" autocomplete=\"off\" spellcheck=\"false\" min=\"0\" value=\"2\"\/><\/div><div class=\"field\" id=\"input-6\"><label for=\"field-9\">\u00c1rea por porta<\/label><input type=\"text\" name=\"rea_por_porta\" id=\"field-9\" aria-describedby=\"calc-unit-9 calc-info-9\" data-number inputmode=\"decimal\" autocomplete=\"off\" spellcheck=\"false\" min=\"0\" value=\"21\"\/><div class=\"unit\" id=\"calc-unit-9\">ft\u00b2<\/div><small id=\"calc-info-9\">\u00c1rea de v\u00e3o descontada por cada porta.<\/small><\/div><div class=\"field\" id=\"input-7\"><label for=\"field-10\">N\u00famero de janelas<\/label><input type=\"text\" name=\"nmero_de_janelas\" id=\"field-10\" data-number inputmode=\"decimal\" autocomplete=\"off\" spellcheck=\"false\" min=\"0\" value=\"2\"\/><\/div><div class=\"field\" id=\"input-8\"><label for=\"field-11\">\u00c1rea por janela<\/label><input type=\"text\" name=\"rea_por_janela\" id=\"field-11\" aria-describedby=\"calc-unit-11 calc-info-11\" data-number inputmode=\"decimal\" autocomplete=\"off\" spellcheck=\"false\" min=\"0\" value=\"15\"\/><div class=\"unit\" id=\"calc-unit-11\">ft\u00b2<\/div><small id=\"calc-info-11\">\u00c1rea de v\u00e3o descontada por cada janela.<\/small><\/div><div class=\"field\" id=\"input-9\"><label for=\"field-12\">Tamanho da chapa de drywall<\/label><div class=\"grid grid-cols-1\"><select id=\"field-12\" name=\"tamanho_da_chapa_de_drywall\"><option value=\"s8\" selected>4 \u00d7 8 ft (32 ft\u00b2)<\/option><option value=\"s10\">4 \u00d7 10 ft (40 ft\u00b2)<\/option><option value=\"s12\">4 \u00d7 12 ft (48 ft\u00b2)<\/option><\/select><svg class=\"pointer-events-none col-start-1 row-start-1 mr-2 size-5 self-center justify-self-end text-gray-500 sm:size-4\" viewBox=\"0 0 16 16\" fill=\"currentColor\" aria-hidden=\"true\" data-slot=\"icon\">\n              <path fill-rule=\"evenodd\" d=\"M4.22 6.22a.75.75 0 0 1 1.06 0L8 8.94l2.72-2.72a.75.75 0 1 1 1.06 1.06l-3.25 3.25a.75.75 0 0 1-1.06 0L4.22 7.28a.75.75 0 0 1 0-1.06Z\" clip-rule=\"evenodd\" \/>\n            <\/svg><\/div><\/div><div class=\"field\" id=\"input-10\"><label for=\"field-13\">Margem de desperd\u00edcio<\/label><input type=\"text\" name=\"margem_de_desperdcio\" id=\"field-13\" aria-describedby=\"calc-unit-13\" data-number inputmode=\"decimal\" autocomplete=\"off\" spellcheck=\"false\" min=\"0\" max=\"100\" value=\"10\"\/><div class=\"unit\" id=\"calc-unit-13\">%<\/div><\/div><div class=\"field\" id=\"input-11\"><label for=\"field-14\">Pre\u00e7o por chapa<\/label><input type=\"text\" name=\"preo_por_chapa\" id=\"field-14\" aria-describedby=\"calc-unit-14 calc-info-14\" data-number inputmode=\"decimal\" autocomplete=\"off\" spellcheck=\"false\" min=\"0\" value=\"18\"\/><div class=\"unit\" id=\"calc-unit-14\">$\/chapa<\/div><small id=\"calc-info-14\">Opcional. Deixe este campo vazio para omitir a estimativa de custo.<\/small><\/div><\/fieldset><div class=\"buttons\"><button type=\"submit\" data-text=\"Recalcular\" id=\"calculate-button\" data-post=\"2944\">Calcular<\/button><button type=\"reset\">Redefinir<\/button><\/div><div class=\"field is-checkbox hidden!\" id=\"field-auto-calc\"><input type=\"checkbox\" id=\"auto-calc\"><label for=\"auto-calc\">Calcular automaticamente<\/label><small>Se ativado, o resultado \u00e9 atualizado automaticamente quando voc\u00ea altera qualquer valor.<\/small><\/div><div class=\"fieldset-result is-hidden\" aria-labelledby=\"result-title\" aria-live=\"polite\" role=\"region\"> <h3 class=\"result-title bg-gradient-to-r from-primary-50 to-gray-50 dark:from-primary-900 dark:to-gray-800\" id=\"result-title\"><span class=\"icon icon-s-pulse\" aria-hidden=\"true\"><\/span> Estimativas de drywall e materiais<\/h3><div class=\"result-box\"><div class=\"field-result\" id=\"output-1\"><span class=\"field-title\"><span>\u00c1rea das paredes antes dos v\u00e3os<\/span><\/span><span class=\"field-value\" id=\"result-1\" data-unit=\"ft\u00b2\"><\/span><button type=\"button\" class=\"copy-result\" data-tooltip=\"Copiar resultado\" aria-label=\"Copiar resultado\"><span class=\"copy-icon icon icon-document-copy\" aria-hidden=\"true\"><\/span><\/button><\/div><div class=\"field-result\" id=\"output-2\"><span class=\"field-title\"><span>\u00c1rea do teto<\/span><\/span><span class=\"field-value\" id=\"result-2\" data-unit=\"ft\u00b2\"><\/span><button type=\"button\" class=\"copy-result\" data-tooltip=\"Copiar resultado\" aria-label=\"Copiar resultado\"><span class=\"copy-icon icon icon-document-copy\" aria-hidden=\"true\"><\/span><\/button><\/div><div class=\"field-result\" id=\"output-3\"><span class=\"field-title\"><span>\u00c1rea l\u00edquida de drywall<\/span><\/span><span class=\"field-value\" id=\"result-3\" data-unit=\"ft\u00b2\"><\/span><button type=\"button\" class=\"copy-result\" data-tooltip=\"Copiar resultado\" aria-label=\"Copiar resultado\"><span class=\"copy-icon icon icon-document-copy\" aria-hidden=\"true\"><\/span><\/button><\/div><div class=\"field-result\" id=\"output-4\"><span class=\"field-title\"><span>Chapas a comprar<\/span><\/span><span class=\"field-value\" id=\"result-4\" data-unit=\"chapas\"><\/span><button type=\"button\" class=\"copy-result\" data-tooltip=\"Copiar resultado\" aria-label=\"Copiar resultado\"><span class=\"copy-icon icon icon-document-copy\" aria-hidden=\"true\"><\/span><\/button><\/div><div class=\"field-result\" id=\"output-5\"><span class=\"field-title\"><span>Massa de junta estimada<\/span><\/span><span class=\"field-value\" id=\"result-5\" data-unit=\"lb\"><\/span><button type=\"button\" class=\"copy-result\" data-tooltip=\"Copiar resultado\" aria-label=\"Copiar resultado\"><span class=\"copy-icon icon icon-document-copy\" aria-hidden=\"true\"><\/span><\/button><\/div><div class=\"field-result\" id=\"output-6\"><span class=\"field-title\"><span>Fita de junta estimada<\/span><\/span><span class=\"field-value\" id=\"result-6\" data-unit=\"ft\"><\/span><button type=\"button\" class=\"copy-result\" data-tooltip=\"Copiar resultado\" aria-label=\"Copiar resultado\"><span class=\"copy-icon icon icon-document-copy\" aria-hidden=\"true\"><\/span><\/button><\/div><div class=\"field-result\" id=\"output-7\"><span class=\"field-title\"><span>Parafusos para drywall estimados<\/span><\/span><span class=\"field-value\" id=\"result-7\" data-unit=\"parafusos\"><\/span><button type=\"button\" class=\"copy-result\" data-tooltip=\"Copiar resultado\" aria-label=\"Copiar resultado\"><span class=\"copy-icon icon icon-document-copy\" aria-hidden=\"true\"><\/span><\/button><\/div><div class=\"field-result\" id=\"output-8\"><span class=\"field-title\"><span>Custo estimado das chapas<\/span><\/span><span class=\"field-value\" id=\"result-8\"><\/span><button type=\"button\" class=\"copy-result\" data-tooltip=\"Copiar resultado\" aria-label=\"Copiar resultado\"><span class=\"copy-icon icon icon-document-copy\" aria-hidden=\"true\"><\/span><\/button><\/div><div class=\"field-result is-column\" id=\"output-9\"><span class=\"field-title\"><span>Observa\u00e7\u00f5es sobre o c\u00e1lculo<\/span><\/span><span class=\"field-value\" id=\"result-9\"><\/span><button type=\"button\" class=\"copy-result\" data-tooltip=\"Copiar resultado\" aria-label=\"Copiar resultado\"><span class=\"copy-icon icon icon-document-copy\" aria-hidden=\"true\"><\/span><\/button><\/div><\/div><div class=\"result-actions\"><button type=\"button\" class=\"copy-link\"><svg viewBox=\"0 0 20 20\" fill=\"currentColor\" aria-hidden=\"true\"><path d=\"M12.232 4.232a2.5 2.5 0 0 1 3.536 3.536l-1.225 1.224a.75.75 0 0 0 1.061 1.06l1.224-1.224a4 4 0 0 0-5.656-5.656l-3 3a4 4 0 0 0 .225 5.865.75.75 0 0 0 .977-1.138 2.5 2.5 0 0 1-.142-3.667l3-3Z\"\/><path d=\"M11.603 7.963a.75.75 0 0 0-.977 1.138 2.5 2.5 0 0 1 .142 3.667l-3 3a2.5 2.5 0 0 1-3.536-3.536l1.225-1.224a.75.75 0 0 0-1.061-1.06l-1.224 1.224a4 4 0 1 0 5.656 5.656l3-3a4 4 0 0 0-.225-5.865Z\"\/><\/svg><span class=\"copy-link__text\">Copiar link para este c\u00e1lculo<\/span><\/button><span class=\"sr-only\" role=\"status\" id=\"copy-link-status\"><\/span><\/div><\/div><a href=\"#respond\" class=\"hidden transition-opacity duration-300 opacity-0 w-50 text-sm justify-center items-center gap-2 px-4 py-2 rounded bg-gray-200 text-gray-700 hover:bg-gray-300\" id=\"leave-comment\"><span class=\"icon icon-comments\" aria-hidden=\"true\"><\/span>Deixar um coment\u00e1rio<\/a><\/form><\/section><section id=\"calc-reactions\" class=\"not-prose hidden my-12 bg-gradient-to-r from-primary-50 to-gray-50 border border-indigo-100 rounded-xl px-6 py-4 shadow-sm\" data-post=\"2944\" aria-live=\"polite\" aria-labelledby=\"calc-reactions-title\"><p id=\"calc-reactions-title\" class=\"text-sm text-gray-500 text-center mb-2\">O que voc\u00ea achou deste resultado?<\/p><div role=\"group\" aria-labelledby=\"calc-reactions-title\" class=\"grid grid-cols-3 sm:flex sm:flex-row sm:justify-around gap-4 sm:items-center sm:flex-wrap\"><button type=\"button\" aria-pressed=\"false\" class=\"reaction-btn flex flex-col items-center gap-1 text-sm text-gray-700 hover:text-primary-600 cursor-pointer transition-transform hover:scale-105\" data-reaction=\"like\"><span class=\"reaction-count\" data-reaction-count=\"like\">0<\/span><span class=\"reaction text-3xl\" aria-hidden=\"true\">\ud83d\ude00 <\/span><span class=\"reaction-description font-medium\">Curti <\/span><\/button><button type=\"button\" aria-pressed=\"false\" class=\"reaction-btn flex flex-col items-center gap-1 text-sm text-gray-700 hover:text-primary-600 cursor-pointer transition-transform hover:scale-105\" data-reaction=\"helpful\"><span class=\"reaction-count\" data-reaction-count=\"helpful\">0<\/span><span class=\"reaction text-3xl\" aria-hidden=\"true\">\ud83d\udca1 <\/span><span class=\"reaction-description font-medium\">\u00datil <\/span><\/button><button type=\"button\" aria-pressed=\"false\" class=\"reaction-btn flex flex-col items-center gap-1 text-sm text-gray-700 hover:text-primary-600 cursor-pointer transition-transform hover:scale-105\" data-reaction=\"confused\"><span class=\"reaction-count\" data-reaction-count=\"confused\">0<\/span><span class=\"reaction text-3xl\" aria-hidden=\"true\">\ud83d\ude15 <\/span><span class=\"reaction-description font-medium\">Confuso <\/span><\/button><button type=\"button\" aria-pressed=\"false\" class=\"reaction-btn flex flex-col items-center gap-1 text-sm text-gray-700 hover:text-primary-600 cursor-pointer transition-transform hover:scale-105\" data-reaction=\"disappointed\"><span class=\"reaction-count\" data-reaction-count=\"disappointed\">0<\/span><span class=\"reaction text-3xl\" aria-hidden=\"true\">\ud83d\ude1e <\/span><span class=\"reaction-description font-medium\">Decepcionado <\/span><\/button><button type=\"button\" aria-pressed=\"false\" class=\"reaction-btn flex flex-col items-center gap-1 text-sm text-gray-700 hover:text-primary-600 cursor-pointer transition-transform hover:scale-105\" data-reaction=\"inaccurate\"><span class=\"reaction-count\" data-reaction-count=\"inaccurate\">0<\/span><span class=\"reaction text-3xl\" aria-hidden=\"true\">\u274c <\/span><span class=\"reaction-description font-medium\">Impreciso <\/span><\/button><\/div><div id=\"reaction-message\" class=\"hidden mt-8 rounded-md border border-primary-100 bg-white\/50 backdrop-blur-sm px-4 py-2 text-sm text-center shadow-sm\"><\/div><\/section><div class=\"calcdash-ad not-prose calcdash-ad--calc_result calcdash-ad--in-article\"><ins class=\"adsbygoogle\" style=\"display:block\" data-ad-client=\"ca-pub-1721569815777345\" data-ad-slot=\"6317458308\" data-ad-layout=\"in-article\" data-ad-format=\"fluid\"><\/ins><script>(adsbygoogle = window.adsbygoogle || []).push({});<\/script><\/div>\n<style id=\"wpcoderpro-inline-1\">.formula-box {\r\n\tborder-bottom: none !important;\r\n}<\/style><section class=\"formula-box\" aria-labelledby=\"formula-title\">\r\n\t<div id=\"formula-title\" class=\"not-prose font-display mb-4\"><span class=\"icon icon-formula\" aria-hidden=\"true\"><\/span><h2>F\u00f3rmula do drywall<\/h2><\/div>\r\n\t<figure class=\"not-prose formula\">\r\n\t\t<figcaption class=\"formula-title\">F\u00f3rmula<\/figcaption>\r\n\t\t<div class=\"text-base text-gray-800\" id=\"formula\">\n\\[ \\begin{aligned} A_{\\mathrm{wall}} &amp;= 2(L+W)H, \\\\ A_{\\mathrm{net}} &amp;= A_{\\mathrm{wall}}-n_d a_d-n_w a_w+cLW, \\\\ S &amp;= \\left\\lceil\\frac{A_{\\mathrm{net}}(1+r\/100)}{A_s}\\right\\rceil. \\end{aligned} \\]\n<\/div>\r\n\t<\/figure>\r\n\t<\/p>\n<p><strong>Onde:<\/strong><\/p>\n<ul>\n<li>\\(L\\), \\(W\\) e \\(H\\) \u2014 comprimento, largura da sala e altura das paredes, convertidos para p\u00e9s<\/li>\n<li>\\(A_{\\mathrm{wall}}\\) e \\(A_{\\mathrm{net}}\\) \u2014 \u00e1rea das paredes antes dos v\u00e3os e \u00e1rea l\u00edquida de drywall (ft\u00b2)<\/li>\n<li>\\(n_d\\), \\(n_w\\) \u2014 quantidade de portas e janelas<\/li>\n<li>\\(a_d\\), \\(a_w\\) \u2014 \u00e1rea de cada v\u00e3o de porta e de janela (ft\u00b2)<\/li>\n<li>\\(c\\) \u2014 1 se o teto for inclu\u00eddo; 0 caso contr\u00e1rio<\/li>\n<li>\\(r\\) \u2014 margem de desperd\u00edcio (%)<\/li>\n<li>\\(A_s\\) \u2014 \u00e1rea por placa: 32, 40 ou 48 ft\u00b2<\/li>\n<li>\\(S\\) \u2014 placas inteiras a comprar<\/li>\n<\/ul>\n<p>O c\u00e1lculo subtrai das paredes os v\u00e3os de portas e janelas, adiciona o teto quando selecionado e aplica o desperd\u00edcio antes de arredondar a quantidade de placas para cima. J\u00e1 as estimativas de massa de jun\u00e7\u00e3o, fita e parafusos s\u00e3o baseadas na \u00e1rea l\u00edquida, sem incluir o desperd\u00edcio.<\/p>\n<p>\r\n<\/section>\n<style id=\"wpcoderpro-inline-2\">.calculation-box {\r\n\tborder-bottom: none !important;\r\n}<\/style><section id=\"calculation\" class=\"calculation-box\" aria-labelledby=\"calculation-title\">\r\n\t<div id=\"calculation-title\" class=\"not-prose font-display\"><span class=\"icon icon-unordered-list\" aria-hidden=\"true\"><\/span><h2>Drywall \u2013 Exemplo de c\u00e1lculo<\/h2><\/div>\r\n\r\n<\/p>\n<p><strong>Exemplo:<\/strong> uma sala de 12 ft por 10 ft tem paredes de 8 ft, teto, dois v\u00e3os de porta de 21 ft\u00b2 e dois v\u00e3os de janela de 15 ft\u00b2. Use placas de 4 \u00d7 8 ft, 10% de desperd\u00edcio e um pre\u00e7o de $18 por placa.<\/p>\n<p>\\[ \\begin{aligned} A_{\\mathrm{wall}}&amp;=2(12+10)(8)=352\\text{ ft\u00b2}, \\\\ A_{\\mathrm{ceiling}}&amp;=12(10)=120\\text{ ft\u00b2}, \\\\ A_{\\mathrm{net}}&amp;=352-2(21)-2(15)+120=400\\text{ ft\u00b2}, \\\\ S&amp;=\\left\\lceil\\frac{400(1.10)}{32}\\right\\rceil=14\\text{ placas}. \\end{aligned} \\]<\/p>\n<p><strong>Resultado:<\/strong> compre 14 placas. As demais estimativas s\u00e3o 21,2 lb de massa de jun\u00e7\u00e3o, 148 ft de fita, 400 parafusos e $252,00 pelas placas.<\/p>\n<p>\n\r\n<\/section>\n<h2>Como usar a calculadora<\/h2>\n<ol>\n<li>Informe o <strong>Comprimento da sala<\/strong>, a <strong>Largura da sala<\/strong> e a <strong>Altura das paredes<\/strong>. Ao lado de cada campo, escolha a unidade adequada de comprimento, largura e altura. Voc\u00ea pode misturar p\u00e9s e metros; a calculadora converte as dimens\u00f5es para p\u00e9s antes de calcular a \u00e1rea.<\/li>\n<li>Defina <strong>Incluir teto<\/strong> como Sim se voc\u00ea for cobrir com drywall o teto plano da sala, ou N\u00e3o para calcular apenas as paredes.<\/li>\n<li>Informe a <strong>Quantidade de portas<\/strong> e a <strong>\u00c1rea por porta<\/strong>, depois a <strong>Quantidade de janelas<\/strong> e a <strong>\u00c1rea por janela<\/strong>. Os campos de \u00e1rea dos v\u00e3os est\u00e3o em p\u00e9s quadrados, mesmo que voc\u00ea informe as dimens\u00f5es da sala em metros. Use zero para o tipo de v\u00e3o que n\u00e3o existir.<\/li>\n<li>Selecione o <strong>Tamanho da placa de drywall<\/strong>: 4 \u00d7 8 ft, 4 \u00d7 10 ft ou 4 \u00d7 12 ft. Informe uma <strong>Margem de desperd\u00edcio<\/strong> para sobras de corte e placas danificadas.<\/li>\n<li>Informe o <strong>Pre\u00e7o por placa<\/strong> para obter um custo estimado s\u00f3 das placas, ou deixe o campo vazio para omitir o custo. Confira as \u00e1reas, as <strong>Placas a comprar<\/strong> e as quantidades aproximadas de materiais nos resultados.<\/li>\n<\/ol>\n<h2>Entendendo a estimativa de drywall<\/h2>\n<p>Drywall \u00e9 vendido em placas inteiras, mas a sala \u00e9 medida pela superf\u00edcie que voc\u00ea pretende cobrir. A calculadora primeiro calcula a \u00e1rea das quatro paredes de uma sala retangular. Em seguida, subtrai os v\u00e3os de portas e janelas informados e, se solicitado, adiciona a \u00e1rea do teto. A <strong>\u00c1rea l\u00edquida de drywall<\/strong> resultante \u00e9 a \u00e1rea de cobertura medida antes do desperd\u00edcio.<\/p>\n<p>O resultado <strong>Placas a comprar<\/strong> aplica a margem de desperd\u00edcio sobre essa \u00e1rea l\u00edquida, divide pela \u00e1rea da placa escolhida e arredonda para uma placa inteira. Por exemplo, a sala do exemplo precisa de 400 ft\u00b2 de cobertura e de 440 ft\u00b2 depois dos 10% de desperd\u00edcio. Quatorze placas de 4 \u00d7 8 ft fornecem 448 ft\u00b2 no total. Trata-se de uma estimativa baseada em \u00e1rea, n\u00e3o de um plano de corte: ter metragem quadrada suficiente n\u00e3o garante que cada pe\u00e7a possa ser recortada das placas sem desperd\u00edcio adicional.<\/p>\n<p>As demais quantidades s\u00e3o estimativas para planejamento. A calculadora usa 0,053 lb de massa de jun\u00e7\u00e3o, 0,37 ft de fita para juntas e um parafuso por p\u00e9 quadrado de \u00e1rea l\u00edquida de drywall; os parafusos s\u00e3o arredondados para um n\u00famero inteiro. O desperd\u00edcio <em>n\u00e3o<\/em> \u00e9 acrescentado a essas tr\u00eas quantidades. O consumo real depende do comprimento das juntas, do espa\u00e7amento da estrutura de madeira ou metal, das exig\u00eancias de fixa\u00e7\u00e3o e de quantas dem\u00e3os ou tratamentos de acabamento voc\u00ea aplicar.<\/p>\n<h2>Premissas e dicas pr\u00e1ticas<\/h2>\n<p>Esses c\u00e1lculos pressup\u00f5em uma sala retangular com teto plano e nenhum v\u00e3o al\u00e9m das portas e janelas informadas. Me\u00e7a separadamente alcovas, tetos inclinados, rebaixos e outras superf\u00edcies irregulares. Os descontos de v\u00e3os n\u00e3o podem ultrapassar a \u00e1rea total das paredes. V\u00e3os pequenos podem n\u00e3o reduzir o n\u00famero de placas necess\u00e1rias, pois os trechos de parede ao redor ainda exigem pe\u00e7as de tamanho adequado.<\/p>\n<p>Escolha o tamanho da placa pensando tamb\u00e9m na instala\u00e7\u00e3o, n\u00e3o apenas na \u00e1rea total. Placas mais compridas reduzem o n\u00famero de juntas, mas podem ser mais dif\u00edceis de transportar at\u00e9 a sala ou de instalar no teto. Planeje a orienta\u00e7\u00e3o e o posicionamento das placas em volta de cantos, v\u00e3os e estrutura antes de comprar. Se o seu layout gerar muitas sobras estreitas, aumente a margem de desperd\u00edcio em vez de confiar apenas no c\u00e1lculo de \u00e1rea.<\/p>\n<p>O <strong>custo estimado das placas<\/strong> multiplica a quantidade arredondada de placas pelo pre\u00e7o informado. Ele n\u00e3o inclui massa de jun\u00e7\u00e3o, fita, parafusos, entrega, m\u00e3o de obra nem impostos. Se v\u00e1rias pessoas forem dividir a compra, uma <a href=\"https:\/\/wpcalc.com\/pt\/vida\/calculadora-divisao-de-conta\/\">calculadora de divis\u00e3o de conta<\/a> ajuda a ratear o total final. Para um acabamento de parede diferente, use a <a href=\"https:\/\/wpcalc.com\/pt\/vida\/calculadora-papel-de-parede\/\">calculadora de papel de parede<\/a> para estimar os rolos separadamente.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Estime a quantidade de placas de drywall, massa de jun\u00e7\u00e3o, fita, parafusos e o custo das placas para uma sala retangular. Informe as dimens\u00f5es da sala, os v\u00e3os, o tamanho da placa e a margem de desperd\u00edcio.<\/p>\n","protected":false},"author":3168,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[9],"tags":[46],"class_list":["post-2944","post","type-post","status-publish","format-standard","hentry","category-vida","tag-casa"],"acf":[],"_links":{"self":[{"href":"https:\/\/wpcalc.com\/pt\/wp-json\/wp\/v2\/posts\/2944","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/wpcalc.com\/pt\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/wpcalc.com\/pt\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/wpcalc.com\/pt\/wp-json\/wp\/v2\/users\/3168"}],"replies":[{"embeddable":true,"href":"https:\/\/wpcalc.com\/pt\/wp-json\/wp\/v2\/comments?post=2944"}],"version-history":[{"count":0,"href":"https:\/\/wpcalc.com\/pt\/wp-json\/wp\/v2\/posts\/2944\/revisions"}],"wp:attachment":[{"href":"https:\/\/wpcalc.com\/pt\/wp-json\/wp\/v2\/media?parent=2944"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/wpcalc.com\/pt\/wp-json\/wp\/v2\/categories?post=2944"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/wpcalc.com\/pt\/wp-json\/wp\/v2\/tags?post=2944"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}