{"id":131,"date":"2025-08-18T16:55:56","date_gmt":"2025-08-18T11:25:56","guid":{"rendered":"https:\/\/claddingproject.com\/blog\/?p=131"},"modified":"2025-08-18T16:55:58","modified_gmt":"2025-08-18T11:25:58","slug":"purlins-and-rafters","status":"publish","type":"post","link":"https:\/\/claddingproject.com\/blog\/purlins-and-rafters\/","title":{"rendered":"Purlins and Rafters: Everything One Must Know for the Strong Roof"},"content":{"rendered":"\n<p>All good and lasting <a href=\"https:\/\/www.google.com\/url?sa=t&amp;source=web&amp;rct=j&amp;opi=89978449&amp;url=https:\/\/en.wikipedia.org\/wiki\/Roof&amp;ved=2ahUKEwi-tZe7m5SPAxVya_UHHUVtD68QFnoECBsQAQ&amp;usg=AOvVaw2Y6pnzz6UIAcy3Ynd5ck1A\" target=\"_blank\" rel=\"noreferrer noopener\">roofs<\/a> begin with a good frame. <strong>Purlins and rafters<\/strong> are two such important structural members. They may seem similar to the eye, but their functions in support of roofing materials and stabilization are quite different. <\/p>\n\n\n\n<p>Whether you are the contractor, builder, or homeowner designing the project, knowing this difference will help you make the right choice for design, strength, and cost.<\/p>\n\n\n\n<p>At <a href=\"https:\/\/claddingproject.com\" target=\"_blank\" rel=\"noreferrer noopener\">Cladding Projects Limited<\/a>, educated choices build quality structures. This guide will describe purlins and rafters, their dimensions and costs, and their main points of difference, so that you may decide on the one that is suitable for your project.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\"\/>\n\n\n\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_83 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/claddingproject.com\/blog\/purlins-and-rafters\/#What_Are_Purlins\" >What Are Purlins?<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/claddingproject.com\/blog\/purlins-and-rafters\/#Types_of_Purlins\" >Types of Purlins<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/claddingproject.com\/blog\/purlins-and-rafters\/#What_are_Rafters\" >What are Rafters?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/claddingproject.com\/blog\/purlins-and-rafters\/#Why_Rafters_are_Important\" >Why Rafters are Important?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/claddingproject.com\/blog\/purlins-and-rafters\/#Sizes_of_Purlins_and_Rafters\" >Sizes of Purlins and Rafters<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/claddingproject.com\/blog\/purlins-and-rafters\/#Purlins_and_Rafters_Difference_Detailed_Comparison\" >Purlins and Rafters Difference (Detailed Comparison)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/claddingproject.com\/blog\/purlins-and-rafters\/#Purlins_and_Rafters_Prices\" >Purlins and Rafters Prices<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/claddingproject.com\/blog\/purlins-and-rafters\/#Which_One_Should_You_Choose\" >Which One Should You Choose?<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/claddingproject.com\/blog\/purlins-and-rafters\/#Size_of_the_project\" >Size of the project<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/claddingproject.com\/blog\/purlins-and-rafters\/#Design_preference\" >Design preference<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/claddingproject.com\/blog\/purlins-and-rafters\/#Another_way_to_view_this_is\" >Another way to view this is:<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/claddingproject.com\/blog\/purlins-and-rafters\/#Budget\" >Budget<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/claddingproject.com\/blog\/purlins-and-rafters\/#Longevity\" >Longevity<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/claddingproject.com\/blog\/purlins-and-rafters\/#Conclusion_on_Purlins_and_Rafters\" >Conclusion on Purlins and Rafters<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/claddingproject.com\/blog\/purlins-and-rafters\/#Frequently_Asked_Questions_Regarding_Purlins_and_Rafters\" >Frequently Asked Questions Regarding Purlins and Rafters<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/claddingproject.com\/blog\/purlins-and-rafters\/#Q1_What_is_the_range_of_purlins_and_rafter_sizes\" >Q1. What is the range of purlins and rafter sizes?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/claddingproject.com\/blog\/purlins-and-rafters\/#Q2_What_is_the_primary_difference_between_a_rafter_and_a_purlin\" >Q2. What is the primary difference between a rafter and a purlin?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-18\" href=\"https:\/\/claddingproject.com\/blog\/purlins-and-rafters\/#Q3_Is_purlin_or_rafter_cheaper\" >Q3. Is purlin or rafter cheaper?<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"What_Are_Purlins\"><\/span><strong>What Are Purlins?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Purlins are horizontal structural members used in roofs for supporting tiles, decking, or <a href=\"https:\/\/claddingproject.com\/blog\/color-coated-roofing-sheets\/\" target=\"_blank\" rel=\"noreferrer noopener\">sheets<\/a>. They are generally placed between the roof covering and the main frame of the roof (trusses or rafters). <\/p>\n\n\n\n<p>So instead of the covering resting directly on the rafters, the purlins take the load from the covering and are preferably used for large spans.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Types_of_Purlins\"><\/span><strong>Types of Purlins<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>C-Purlins<\/strong> \u2013 Curved in the letter &#8220;C&#8221; shape, commonly used in light steel construction.<\/li>\n\n\n\n<li><strong>Z-Purlins<\/strong> \u2013 Stronger because of overlapping joints; best for longer spans.<\/li>\n\n\n\n<li><strong>Timber Purlins<\/strong> \u2013 Classic choice for pitched roofs, usually used alongside wooden rafters.\u00a0<\/li>\n\n\n\n<li><strong>Steel Purlins <\/strong>&#8211; It is used mainly in modern constructions for heavy-duty uses, being lightweight and free of termite and warping issues.<\/li>\n<\/ul>\n\n\n\n<p>Since purlins are known to be cheap and adaptable, they find huge demand in industrial and commercial building roofings.<\/p>\n\n\n\n<p>The panels lie on the purlins and are, therefore, typically parallel.<\/p>\n\n\n\n<p><strong>You may also like<\/strong> &#8211; <a href=\"https:\/\/claddingproject.com\/blog\/types-of-warehouse\/\" target=\"_blank\" rel=\"noreferrer noopener\">Types of Warehouse<\/a><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"What_are_Rafters\"><\/span><strong>What are Rafters?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"2560\" height=\"1707\" src=\"http:\/\/claddingproject.com\/blog\/wp-content\/uploads\/2025\/08\/attic-of-a-building-under-construction-with-wooden-2025-05-31-22-25-09-utc-scaled.avif\" alt=\"Purlins and Rafters\" class=\"wp-image-134\" srcset=\"https:\/\/claddingproject.com\/blog\/wp-content\/uploads\/2025\/08\/attic-of-a-building-under-construction-with-wooden-2025-05-31-22-25-09-utc-scaled.avif 2560w, https:\/\/claddingproject.com\/blog\/wp-content\/uploads\/2025\/08\/attic-of-a-building-under-construction-with-wooden-2025-05-31-22-25-09-utc-300x200.avif 300w\" sizes=\"auto, (max-width: 2560px) 100vw, 2560px\" \/><\/figure>\n\n\n\n<p>Rafters are sloping roof members, vertical in direction, that extend from the ridge beam to the wall plate. <\/p>\n\n\n\n<p>They create the framework of pitched roofs and directly support roof coverings like tiles or shingles. In contrast to purlins, rafters carry individual loads, and the weight is passed on directly to the walls.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Why_Rafters_are_Important\"><\/span><strong>Why Rafters are Important<\/strong>?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Offer good structural integrity for smaller roofs.<\/li>\n\n\n\n<li>Ideal for traditional-style homes, cabins, and sloped styles.<\/li>\n\n\n\n<li>Provide aesthetic appeal with exposed timber designs.<\/li>\n<\/ol>\n\n\n\n<p>But rafters are more material- and labor-intensive than purlins and therefore are not as frequent in large-scale contemporary <a href=\"https:\/\/claddingproject.com\/blog\/what-is-peb-structure\/\" target=\"_blank\" rel=\"noreferrer noopener\">construction<\/a>.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Sizes_of_Purlins_and_Rafters\"><\/span><strong>Sizes of Purlins and Rafters<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>The sizes of the purlins and rafters vary according to the roof span, the roof slope, and the kind of material.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Rafters (Timber)<\/strong> &#8211; Usually range between 2&#215;6 inches and 2&#215;12 inches. Wider spans warrant the thicker section of the rafters.<\/li>\n\n\n\n<li><strong>Purlins (Steel)<\/strong> &#8211; Usually range between 100mm to 300mm in depth, and the thickness shall be from 1.5mm to 3mm, depending on the load.<\/li>\n\n\n\n<li><strong>Timber Purlins<\/strong> &#8211; Usually between 4&#215;2 inches and 6&#215;3 inches.<\/li>\n<\/ul>\n\n\n\n<p>Proper sizes are chosen per structural design so that these members can support the roof&#8217;s weight along with the forces of wind and weather.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Purlins_and_Rafters_Difference_Detailed_Comparison\"><\/span><strong>Purlins and Rafters Difference (Detailed Comparison)<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Here&#8217;s a side-by-side comparison for clarity:<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>Feature<\/strong><\/td><td><strong>Purlins<\/strong><\/td><td><strong>Rafters<\/strong><\/td><\/tr><tr><td>Placement<\/td><td>Horizontal, placed between trusses and roof covering.<\/td><td>Sloped, extending from ridge to<br>wall plate.<\/td><\/tr><tr><td>Load Distribution<\/td><td>Spreads load across trusses, efficient for large spans.<\/td><td>Directly carries load to walls.<\/td><\/tr><tr><td>Materials<\/td><td>Steel, timber, composite.<\/td><td>Mostly timber, sometimes steel.<\/td><\/tr><tr><td>Span Capability<\/td><td>Ideal for long spans.<\/td><td>Best for smaller to medium roofs.<\/td><\/tr><tr><td>Cost &amp; Material Use<\/td><td>Cost-effective, uses less material.<\/td><td>More material and labor intensive.<\/td><\/tr><tr><td>Installation<\/td><td>Quicker and easier.<\/td><td>Time-consuming.<\/td><\/tr><tr><td>Durability<\/td><td>Steel purlins are highly durable.<\/td><td>Timber rafters require maintenance.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>In essence, purlins are modern and cost-efficient, while rafters are traditional and structurally aesthetic.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Purlins_and_Rafters_Prices\"><\/span><strong>Purlins and Rafters Prices<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>The price depends on size, material, and project size:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Timber Rafters:<\/strong> Around \u20b9400 \u2013 \u20b9800 per running foot (subject to wood variety).<\/li>\n\n\n\n<li><strong>Steel Rafters:<\/strong> The Initial investment is higher, but the lifespan is longer.<\/li>\n\n\n\n<li><strong>C-Purlins &amp; Z-Purlins:<\/strong> \u20b960 \u2013 \u20b9120 per kg (market prices vary).<\/li>\n\n\n\n<li><strong>Timber Purlins:<\/strong> Cheaper than rafters but not as long-lasting as steel.<\/li>\n<\/ol>\n\n\n\n<p>While rafters tend to be more expensive, purlins are generally cost-effective for big projects because they save material effectively.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Which_One_Should_You_Choose\"><\/span><strong>Which One Should You Choose?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"683\" src=\"http:\/\/claddingproject.com\/blog\/wp-content\/uploads\/2025\/08\/close-up-detail-bottom-view-from-inside-of-bright-2024-12-06-03-43-43-utc-1024x683.avif\" alt=\"Purlins and Rafters Difference\" class=\"wp-image-135\" srcset=\"https:\/\/claddingproject.com\/blog\/wp-content\/uploads\/2025\/08\/close-up-detail-bottom-view-from-inside-of-bright-2024-12-06-03-43-43-utc-1024x683.avif 1024w, https:\/\/claddingproject.com\/blog\/wp-content\/uploads\/2025\/08\/close-up-detail-bottom-view-from-inside-of-bright-2024-12-06-03-43-43-utc-300x200.avif 300w, https:\/\/claddingproject.com\/blog\/wp-content\/uploads\/2025\/08\/close-up-detail-bottom-view-from-inside-of-bright-2024-12-06-03-43-43-utc-768x512.avif 768w, https:\/\/claddingproject.com\/blog\/wp-content\/uploads\/2025\/08\/close-up-detail-bottom-view-from-inside-of-bright-2024-12-06-03-43-43-utc-1536x1024.avif 1536w, https:\/\/claddingproject.com\/blog\/wp-content\/uploads\/2025\/08\/close-up-detail-bottom-view-from-inside-of-bright-2024-12-06-03-43-43-utc-2048x1366.avif 2048w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Size_of_the_project\"><\/span><strong>Size of the project<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Being the most practical option in big industrial, commercial, or warehouse buildings since they bridge wider spans at cheaper costs and use fewer materials than rafters.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Design_preference\"><\/span><strong>Design preference<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Rafters become more suitable when there is a need for a roof structure to emulate conventional or decorative style, particularly for roofs that are inclined, and form lines of the traditional homes.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Another_way_to_view_this_is\"><\/span><strong>Another way to view this is:<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Budget\"><\/span><strong>Budget<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Purlins would generally be cheaper for <a href=\"https:\/\/claddingproject.com\/blog\/properties-of-steel\/\" rel=\"sponsored\">steel structures<\/a>, thus cutting down on material and labor costs. For a smaller job, however, it might be easiest with rafters.\u00a0<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Longevity\"><\/span><strong>Longevity<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Steel purlins will maintain strength for a longer time with better resistance to weathering, rust, and termites, while timber rafters require periodic maintenance.<\/p>\n\n\n\n<p>We at Cladding Projects LTD., suggest using steel purlins in contemporary construction because of their affordability, simplicity of installation, and weather resistance. Conversely, rafters are still a good option for traditional pitched roofs and single-story buildings.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Conclusion_on_Purlins_and_Rafters\"><\/span><strong>Conclusion on Purlins and Rafters<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Purlins and rafters are essential for the roofing, each offering some benefits. At the same time, rafters have a strong and timeless form, and the Purlins present efficiency and economy in modern times. <\/p>\n\n\n\n<p>This decision is based on the scale of your project, its style, and the available budget.<\/p>\n\n\n\n<p>At <a href=\"https:\/\/claddingproject.com\/contact-us\" target=\"_blank\" rel=\"noreferrer noopener\">Cladding Projects Limited<\/a>, we market the superior purlins, rafters, and cladding materials designed for performance and durability. <\/p>\n\n\n\n<p>Whether it&#8217;s a residential, warehouse, or <a href=\"https:\/\/claddingproject.com\/blog\/pre-engineered-buildings-in-india\/\" target=\"_blank\" rel=\"noreferrer noopener\">industrial building<\/a>, we promise to deliver professionalism, ensuring a roof that lasts decades.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Frequently_Asked_Questions_Regarding_Purlins_and_Rafters\"><\/span><strong>Frequently Asked Questions Regarding Purlins and Rafters<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Below are the answers to the most asked queries on the interent reagrding purlins and rafters.<\/p>\n\n\n<div id=\"rank-math-faq\" class=\"rank-math-block\">\n<div class=\"rank-math-list \">\n<div id=\"faq-question-1755514982610\" class=\"rank-math-list-item\">\n<h3 class=\"rank-math-question \"><span class=\"ez-toc-section\" id=\"Q1_What_is_the_range_of_purlins_and_rafter_sizes\"><\/span><strong>Q1. What is the range of purlins and rafter sizes?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<div class=\"rank-math-answer \">\n\n<p>Purlins in steel range from 100mm to 300mm thick, but timber rafters typically start at 2&#215;6 inches and go up to 2&#215;12 inches, depending upon their span and load requirements.<\/p>\n\n<\/div>\n<\/div>\n<div id=\"faq-question-1755514983928\" class=\"rank-math-list-item\">\n<h3 class=\"rank-math-question \"><span class=\"ez-toc-section\" id=\"Q2_What_is_the_primary_difference_between_a_rafter_and_a_purlin\"><\/span><strong>Q2. What is the primary difference between a rafter and a purlin?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<div class=\"rank-math-answer \">\n\n<p>In brief, rafters are sloping members carrying the roof covering directly, whereas purlins are level members distributing the load over rafters or trusses.<\/p>\n\n<\/div>\n<\/div>\n<div id=\"faq-question-1755514984528\" class=\"rank-math-list-item\">\n<h3 class=\"rank-math-question \"><span class=\"ez-toc-section\" id=\"Q3_Is_purlin_or_rafter_cheaper\"><\/span><strong>Q3. Is purlin or rafter cheaper?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<div class=\"rank-math-answer \">\n\n<p>For large projects, purlins are more cost-effective due to material efficiency. Rafters, however, may be cheaper for small traditional roofs.<\/p>\n\n<\/div>\n<\/div>\n<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>All good and lasting roofs begin with a good frame. Purlins and rafters are two such important structural members. They [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":133,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[1],"tags":[25],"class_list":["post-131","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-pre-engineered-building","tag-purlins-and-rafters"],"_links":{"self":[{"href":"https:\/\/claddingproject.com\/blog\/wp-json\/wp\/v2\/posts\/131","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/claddingproject.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/claddingproject.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/claddingproject.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/claddingproject.com\/blog\/wp-json\/wp\/v2\/comments?post=131"}],"version-history":[{"count":3,"href":"https:\/\/claddingproject.com\/blog\/wp-json\/wp\/v2\/posts\/131\/revisions"}],"predecessor-version":[{"id":137,"href":"https:\/\/claddingproject.com\/blog\/wp-json\/wp\/v2\/posts\/131\/revisions\/137"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/claddingproject.com\/blog\/wp-json\/wp\/v2\/media\/133"}],"wp:attachment":[{"href":"https:\/\/claddingproject.com\/blog\/wp-json\/wp\/v2\/media?parent=131"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/claddingproject.com\/blog\/wp-json\/wp\/v2\/categories?post=131"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/claddingproject.com\/blog\/wp-json\/wp\/v2\/tags?post=131"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}