{"id":6442,"date":"2026-02-03T14:46:20","date_gmt":"2026-02-03T14:46:20","guid":{"rendered":"https:\/\/www.millboard.com\/en-gb\/?page_id=5843"},"modified":"2026-03-10T16:08:57","modified_gmt":"2026-03-10T16:08:57","slug":"decking-subframes","status":"publish","type":"page","link":"https:\/\/www.millboard.com\/en-us\/composite-decking-collections\/decking-subframes\/","title":{"rendered":"Decking Subframes"},"content":{"rendered":"<header class=\"page-header wp-block alignfull has-brand-1-background-color has-background page-header--type--page has-breadcrumbs\">\n    <div class=\"page-header__inner\">\n                    <!-- Breadcrumbs -->\n            <div class=\"page-header__breadcrumbs\">\n                <nav class=\"breadcrumbs\">\n    <span class=\"breadcrumbs__yoast-wrapper\"><span><a href=\"https:\/\/www.millboard.com\/en-us\/\">Home<\/a><\/span><\/span><\/nav>\n            <\/div>\n        \n        <div class=\"page-header__wrapper\">\n            <div class=\"page-header__image-wrapper\">\n                                    <div class=\"page-header__image\">\n                        <div class=\"page-header__image-inner img-fit\">\n                            <img decoding=\"async\" width=\"768\" height=\"512\" src=\"https:\/\/www.millboard.com\/en-us\/wp-content\/uploads\/sites\/5\/2026\/02\/DuoSpan_Installation-Image-10-768x512.jpg\" class=\"\" alt=\"\" fetchpriority=\"high\" data-spai-eager=\"1\" role=\"presentation\" loading=\"eager\" srcset=\"https:\/\/www.millboard.com\/en-us\/wp-content\/uploads\/sites\/5\/2026\/02\/DuoSpan_Installation-Image-10-768x512.jpg 768w, https:\/\/www.millboard.com\/en-us\/wp-content\/uploads\/sites\/5\/2026\/02\/DuoSpan_Installation-Image-10-300x200.jpg 300w, https:\/\/www.millboard.com\/en-us\/wp-content\/uploads\/sites\/5\/2026\/02\/DuoSpan_Installation-Image-10-1024x683.jpg 1024w, https:\/\/www.millboard.com\/en-us\/wp-content\/uploads\/sites\/5\/2026\/02\/DuoSpan_Installation-Image-10-600x400.jpg 600w, https:\/\/www.millboard.com\/en-us\/wp-content\/uploads\/sites\/5\/2026\/02\/DuoSpan_Installation-Image-10.jpg 2048w\" sizes=\"(max-width: 768px) 100vw, 768px\" \/>                        <\/div>\n                    <\/div>\n                            <\/div>\n\n            <div class=\"page-header__content page-header__content--first\">\n                <div class=\"page-header__header\">\n                                            <div class=\"page-header__preheading\">\n                            Composite Decking                        <\/div>\n                    \n                                            <h1 class=\"page-header__heading is-style-typestyle-h1\">Decking Subframes<\/h1>\n                                    <\/div>\n\n                            <\/div>\n                <div class=\"page-header__content page-header__content--last\">\n                                                <div class=\"page-header__description\">\n                        <p>A decking subframe is the structure that sits beneath your composite deck, providing the base that your decking boards are attached to. It&#8217;s the decking equivalent of the foundations of your house, constructed with the best subframe materials.<\/p>\n                    <\/div>\n                \n                \n                            <\/div>\n        <\/div>\n    <\/div>\n\n    <\/header>\n\n    <div class=\"woocommerce-notices-wrapper\"><\/div>\n\n<div data-link=\"false\" class=\"media-object media-content wp-block media-content--has-heading-inset alignfull\" data-media=\"image\" data-media-type=\"image\" data-media-position=\"after\" data-orientation=\"horizontal\">\n    <div class=\"media-object__inner\">\n        \n        <div class=\"media-object__content flex-column\">\n            \n            \n                            <div class=\"media-object__header flex-column\">\n                                            <h2 id=\"subframes-explained\" class=\"media-object__heading media-content__heading\"><span class=\"media-object__heading-primary\">Subframes<\/span>\n<span class=\"media-object__heading-secondary\">Explained<\/span><\/h2>\n                    \n                                             <div class=\"media-object__subheading\">\n                            <p>The subframe of a decking area is one of the most important parts of having a deck installed. Whilst the subframe is generally hidden, it is crucial for the deck&#8217;s longevity. A poor subframe choice or install can lead to the decking being damaged or can even lead to the decking becoming structurally dangerous and eventually failure.<\/p>\n<p>In order to maximise and ensure the resilience &amp; lifespan of our composite decking, we supply our own range of subframe systems Plas-Pro solid plastic joists, DuoSpan aluminium joists and DuoLift adjustable pedestals.<\/p>\n                        <\/div>\n                     \n                                    <\/div>\n            \n            \n            \n                            <ul class=\"list list-reset--hard flex-column flex-column--mq-medium--row media-object__list media-object__buttons\">\n    <\/ul>\n                    <\/div>\n\n                    <div class=\"media-object__media media-object__media--image  img-fit\">\n                                    <img decoding=\"async\" width=\"768\" height=\"1152\" src=\"https:\/\/www.millboard.com\/en-us\/wp-content\/uploads\/sites\/5\/2026\/02\/DuoSpan_Installation-Image-13-768x1152.jpg\" class=\"\" alt=\"\" role=\"presentation\" loading=\"lazy\" srcset=\"https:\/\/www.millboard.com\/en-us\/wp-content\/uploads\/sites\/5\/2026\/02\/DuoSpan_Installation-Image-13-768x1152.jpg 768w, https:\/\/www.millboard.com\/en-us\/wp-content\/uploads\/sites\/5\/2026\/02\/DuoSpan_Installation-Image-13-200x300.jpg 200w, https:\/\/www.millboard.com\/en-us\/wp-content\/uploads\/sites\/5\/2026\/02\/DuoSpan_Installation-Image-13-683x1024.jpg 683w, https:\/\/www.millboard.com\/en-us\/wp-content\/uploads\/sites\/5\/2026\/02\/DuoSpan_Installation-Image-13-1050x1575.jpg 1050w, https:\/\/www.millboard.com\/en-us\/wp-content\/uploads\/sites\/5\/2026\/02\/DuoSpan_Installation-Image-13-600x900.jpg 600w, https:\/\/www.millboard.com\/en-us\/wp-content\/uploads\/sites\/5\/2026\/02\/DuoSpan_Installation-Image-13.jpg 1365w\" sizes=\"auto, (max-width: 768px) 100vw, 768px\" \/>                            <\/div>\n            <\/div>\n\n<\/div>\n\n\n<div data-link=\"false\" class=\"media-object media-content wp-block media-content--has-heading-inset alignfull has-background has-brand-1-background-color\" data-media=\"image\" data-media-type=\"image\" data-media-position=\"before\" data-orientation=\"horizontal\">\n    <div class=\"media-object__inner\">\n                <div class=\"media-object__media img-fit \">\n\n                                    \n                    <img decoding=\"async\" width=\"768\" height=\"768\" src=\"https:\/\/www.millboard.com\/en-us\/wp-content\/uploads\/sites\/5\/2026\/01\/Case-Study_Decking-Enhanced-Grain-Golden-Oak-Dell-Park-6-1-768x768.webp\" class=\"\" alt=\"\" role=\"presentation\" loading=\"lazy\" srcset=\"https:\/\/www.millboard.com\/en-us\/wp-content\/uploads\/sites\/5\/2026\/01\/Case-Study_Decking-Enhanced-Grain-Golden-Oak-Dell-Park-6-1-768x768.webp 768w, https:\/\/www.millboard.com\/en-us\/wp-content\/uploads\/sites\/5\/2026\/01\/Case-Study_Decking-Enhanced-Grain-Golden-Oak-Dell-Park-6-1-300x300.webp 300w, https:\/\/www.millboard.com\/en-us\/wp-content\/uploads\/sites\/5\/2026\/01\/Case-Study_Decking-Enhanced-Grain-Golden-Oak-Dell-Park-6-1-1024x1024.webp 1024w, https:\/\/www.millboard.com\/en-us\/wp-content\/uploads\/sites\/5\/2026\/01\/Case-Study_Decking-Enhanced-Grain-Golden-Oak-Dell-Park-6-1-150x150.webp 150w, https:\/\/www.millboard.com\/en-us\/wp-content\/uploads\/sites\/5\/2026\/01\/Case-Study_Decking-Enhanced-Grain-Golden-Oak-Dell-Park-6-1-1575x1575.webp 1575w, https:\/\/www.millboard.com\/en-us\/wp-content\/uploads\/sites\/5\/2026\/01\/Case-Study_Decking-Enhanced-Grain-Golden-Oak-Dell-Park-6-1-600x600.webp 600w, https:\/\/www.millboard.com\/en-us\/wp-content\/uploads\/sites\/5\/2026\/01\/Case-Study_Decking-Enhanced-Grain-Golden-Oak-Dell-Park-6-1-100x100.webp 100w, https:\/\/www.millboard.com\/en-us\/wp-content\/uploads\/sites\/5\/2026\/01\/Case-Study_Decking-Enhanced-Grain-Golden-Oak-Dell-Park-6-1.webp 2048w\" sizes=\"auto, (max-width: 768px) 100vw, 768px\" \/>\n                                                <\/div>\n        \n        <div class=\"media-object__content flex-column\">\n            \n            \n                            <div class=\"media-object__header flex-column\">\n                                            <h2 id=\"plas-pro-plastic-decking-joists-and-posts\" class=\"media-object__heading media-content__heading\"><span class=\"media-object__heading-primary\">Plas-Pro &#8211; Plastic decking<\/span>\n<span class=\"media-object__heading-secondary\">joists and posts<\/span><\/h2>\n                    \n                                             <div class=\"media-object__subheading\">\n                            <p>By using selected graded materials and cleverly engineered processes, Plas-Pro recycled plastic posts and solid plastic joists provide a sound framework as well as environmental benefits. Naturally moisture resistant and low maintenance, plastic lumber solutions ensure the long life of your decking project, especially compared to timber joists. Plas-Pro can be used on both solid surfaces and uneven ground.<\/p>\n                        <\/div>\n                     \n                                    <\/div>\n            \n            \n            \n                            <ul class=\"list list-reset--hard flex-column flex-column--mq-medium--row media-object__list media-object__buttons\">\n            <li class=\"list__item media-object__list__item\">\n            <a href=\"https:\/\/www.millboard.com\/en-us\/composite-decking-collections\/decking-subframes\/plas-pro\/\" class=\"g-button--primary g-button\"><span >Explore Plas-Pro<\/span><\/a>\n        <\/li>\n    <\/ul>\n                    <\/div>\n\n            <\/div>\n\n<\/div>\n\n\n<div data-link=\"false\" class=\"media-object media-content wp-block media-content--has-heading-inset alignfull has-background has-brand-2-background-color\" data-media=\"image\" data-media-type=\"image\" data-media-position=\"after\" data-orientation=\"horizontal\">\n    <div class=\"media-object__inner\">\n        \n        <div class=\"media-object__content flex-column\">\n            \n            \n                            <div class=\"media-object__header flex-column\">\n                                            <h2 id=\"duospan-aluminium-subframes\" class=\"media-object__heading media-content__heading\"><span class=\"media-object__heading-primary\">DuoSpan\u00ae<\/span>\n<span class=\"media-object__heading-secondary\">Aluminium Subframes<\/span><\/h2>\n                    \n                                             <div class=\"media-object__subheading\">\n                            <p>DuoSpan\u00ae is a durable deck framing system ideal for a solid decking area. It provides the ultimate reassurance for a subframe with a long life. Being a universal support system for various outdoor flooring types, it is the perfect subframe choice for any project setting. An aluminium decking frame is not only low maintenance and highly corrosion-resistant, but it is also much stronger and straighter than traditional timber solutions. Similar to Plas-Pro, aluminium subframes can be used on solid surfaces or soft substrates.<\/p>\n                        <\/div>\n                     \n                                    <\/div>\n            \n            \n            \n                            <ul class=\"list list-reset--hard flex-column flex-column--mq-medium--row media-object__list media-object__buttons\">\n            <li class=\"list__item media-object__list__item\">\n            <a href=\"https:\/\/www.millboard.com\/en-us\/composite-decking-collections\/decking-subframes\/duospan\/\" class=\"g-button--primary g-button\"><span >Explore DuoSpan<\/span><\/a>\n        <\/li>\n    <\/ul>\n                    <\/div>\n\n                    <div class=\"media-object__media media-object__media--image  img-fit\">\n                                    <img decoding=\"async\" width=\"768\" height=\"512\" src=\"https:\/\/www.millboard.com\/en-us\/wp-content\/uploads\/sites\/5\/2026\/02\/DuoSpan_Installation-Image-6-768x512.jpg\" class=\"\" alt=\"\" role=\"presentation\" loading=\"lazy\" srcset=\"https:\/\/www.millboard.com\/en-us\/wp-content\/uploads\/sites\/5\/2026\/02\/DuoSpan_Installation-Image-6-768x512.jpg 768w, https:\/\/www.millboard.com\/en-us\/wp-content\/uploads\/sites\/5\/2026\/02\/DuoSpan_Installation-Image-6-300x200.jpg 300w, https:\/\/www.millboard.com\/en-us\/wp-content\/uploads\/sites\/5\/2026\/02\/DuoSpan_Installation-Image-6-1024x683.jpg 1024w, https:\/\/www.millboard.com\/en-us\/wp-content\/uploads\/sites\/5\/2026\/02\/DuoSpan_Installation-Image-6-600x400.jpg 600w, https:\/\/www.millboard.com\/en-us\/wp-content\/uploads\/sites\/5\/2026\/02\/DuoSpan_Installation-Image-6.jpg 2048w\" sizes=\"auto, (max-width: 768px) 100vw, 768px\" \/>                            <\/div>\n            <\/div>\n\n<\/div>\n\n\n<div data-link=\"false\" class=\"media-object media-content wp-block media-content--has-heading-inset alignfull has-background has-brand-1-background-color\" data-media=\"image\" data-media-type=\"image\" data-media-position=\"before\" data-orientation=\"horizontal\">\n    <div class=\"media-object__inner\">\n                <div class=\"media-object__media img-fit \">\n\n                                    \n                    <img decoding=\"async\" width=\"768\" height=\"512\" src=\"https:\/\/www.millboard.com\/en-us\/wp-content\/uploads\/sites\/5\/2026\/02\/DuoLift-Installation-Image-4-768x512.jpg\" class=\"\" alt=\"\" role=\"presentation\" loading=\"lazy\" srcset=\"https:\/\/www.millboard.com\/en-us\/wp-content\/uploads\/sites\/5\/2026\/02\/DuoLift-Installation-Image-4-768x512.jpg 768w, https:\/\/www.millboard.com\/en-us\/wp-content\/uploads\/sites\/5\/2026\/02\/DuoLift-Installation-Image-4-300x200.jpg 300w, https:\/\/www.millboard.com\/en-us\/wp-content\/uploads\/sites\/5\/2026\/02\/DuoLift-Installation-Image-4-1024x682.jpg 1024w, https:\/\/www.millboard.com\/en-us\/wp-content\/uploads\/sites\/5\/2026\/02\/DuoLift-Installation-Image-4-600x400.jpg 600w, https:\/\/www.millboard.com\/en-us\/wp-content\/uploads\/sites\/5\/2026\/02\/DuoLift-Installation-Image-4.jpg 1613w\" sizes=\"auto, (max-width: 768px) 100vw, 768px\" \/>\n                                                <\/div>\n        \n        <div class=\"media-object__content flex-column\">\n            \n            \n                            <div class=\"media-object__header flex-column\">\n                                            <h2 id=\"duolift-pedestal-system\" class=\"media-object__heading media-content__heading\"><span class=\"media-object__heading-primary\">DuoLift\u00ae<\/span>\n<span class=\"media-object__heading-secondary\">Pedestal System<\/span><\/h2>\n                    \n                                             <div class=\"media-object__subheading\">\n                            <p>With DuoLift\u00ae, you can quickly achieve a level support system that won\u2019t rot, split or host algae. Unlike typical composite decking subframes, the pedestals are only suitable for a solid\/stable substrate, such as a concrete base. They provide a series of feet and risers for varied height situations.<\/p>\n                        <\/div>\n                     \n                                    <\/div>\n            \n            \n            \n                            <ul class=\"list list-reset--hard flex-column flex-column--mq-medium--row media-object__list media-object__buttons\">\n            <li class=\"list__item media-object__list__item\">\n            <a href=\"https:\/\/www.millboard.com\/en-us\/composite-decking-collections\/decking-subframes\/subframes-duolift-pedestal\/\" class=\"g-button--primary g-button\"><span >Explore DuoLift\u00ae<\/span><\/a>\n        <\/li>\n    <\/ul>\n                    <\/div>\n\n            <\/div>\n\n<\/div>\n\n\n<section data-allow-multiple=\"false\" class=\"accordion wp-block alignfull has-background has-brand-2-background-color\">\n    <div class=\"accordion__inner\">\n\n        <div class=\"accordion__header\">\n\n            \n                            <h3 class=\"accordion__header__heading\">Frequently Asked Questions<\/h3>\n            \n            \n            \n        <\/div>\n\n        <div class=\"accordion__items\">\n<div class=\"accordion__item wp-block\">\n    <button aria-expanded=\"true\" aria-controls=\"accordion-panel-1\" type=\"button\" class=\"accordion__item__trigger js-accordion-button\" id=\"what-base-do-you-need-for-composite-decking\"><h3 class=\"accordion__item__heading\">What base do you need for composite decking?<\/h3><\/button>\n\n    <div id=\"accordion-panel-1\" class=\"accordion__item__panel js-expandable-element\" aria-labelledby=\"what-base-do-you-need-for-composite-decking\">\n        <div class=\"accordion__item__panel__inner\">\n            <p>The correct subframe for your decking depends on several factors. Level bases, such as concrete or existing patios, can use a pedestal system (such as DuoLift) with joists. Meanwhile, uneven ground requires a solid framework of posts and joists. Aluminium subframes, such as the DuoSpan system, provide a robust and universal support system for most applications.<\/p>\n\n                    <\/div>\n    <\/div>\n<\/div>\n\n\n<div class=\"accordion__item wp-block\">\n    <button aria-expanded=\"false\" aria-controls=\"accordion-panel-2\" type=\"button\" class=\"accordion__item__trigger js-accordion-button\" id=\"what-is-the-best-decking-subframe-material\"><h3 class=\"accordion__item__heading\">What is the best decking subframe material?<\/h3><\/button>\n\n    <div id=\"accordion-panel-2\" class=\"accordion__item__panel js-expandable-element\" aria-labelledby=\"what-is-the-best-decking-subframe-material\" hidden=\"true\" aria-hidden=\"true\">\n        <div class=\"accordion__item__panel__inner\">\n            <p>The best subframe materials are ones that resist rotting, weathering, corrosion and warping and are designed to last as long as the decking on top. All of Millboard\u2019s subframe systems will be more durable than timber alternatives, which can compromise the performance and safety of your composite decking boards.<\/p>\n\n                    <\/div>\n    <\/div>\n<\/div>\n\n\n<div class=\"accordion__item wp-block\">\n    <button aria-expanded=\"false\" aria-controls=\"accordion-panel-3\" type=\"button\" class=\"accordion__item__trigger js-accordion-button\" id=\"can-i-use-a-timber-subframe-for-millboard-decking\"><h3 class=\"accordion__item__heading\">Can I use a timber subframe for Millboard decking?<\/h3><\/button>\n\n    <div id=\"accordion-panel-3\" class=\"accordion__item__panel js-expandable-element\" aria-labelledby=\"can-i-use-a-timber-subframe-for-millboard-decking\" hidden=\"true\" aria-hidden=\"true\">\n        <div class=\"accordion__item__panel__inner\">\n            <p>Timber subframes can be used as the framework for our composite decking, however it will not last as long so will likely fail before the decking. We would recommend our subframe solutions for a full non-rot solution, to enable a long lasting subframe to accompany the decking.<\/p>\n\n                    <\/div>\n    <\/div>\n<\/div>\n\n<\/div>\n    <\/div>\n<\/section>\n\n\n<div class=\"navigation-tiles wp-block alignfull has-background has-brand-5-background-color\">\n    <div class=\"navigation-tiles__inner\">\n                    <div class=\"navigation-tiles__header\">\n                                    <div class=\"navigation-tiles__preheading is-style-typestyle-h6\">\n                        Plan your space                    <\/div>\n                                \n                                    <h2 id=\"simple-tools-and-expert-support\" class=\"navigation-tiles__heading\">\n                        Simple tools and expert support.                      <\/h2>\n                            <\/div>\n        \n                    <div class=\"navigation-tiles__tiles\">\n                                    <div class=\"navigation-tiles__tile\">\n                                                    <h3 class=\"navigation-tiles__tile-title\">\n                                Decking configurator                            <\/h3>\n                                                \n                                                    <div class=\"navigation-tiles__tile-description\">\n                                <p>Estimate the boards, fixings, subframe and more you need for your space.<\/p>\n                            <\/div>\n                                                \n                                                    <a target=\"\" rel=\"\" href=\"https:\/\/deckplanner.www.millboard.com\/\" class=\"navigation-tiles__tile-cta g-button\">Open Configurator<\/a>\n                                            <\/div>\n                                    <div class=\"navigation-tiles__tile\">\n                                                    <h3 class=\"navigation-tiles__tile-title\">\n                                Request A Quote                            <\/h3>\n                                                \n                                                    <div class=\"navigation-tiles__tile-description\">\n                                <p>Get accurate pricing and product recommendations for your project.<\/p>\n                            <\/div>\n                                                \n                                                    <a target=\"\" rel=\"\" href=\"https:\/\/www.millboard.com\/en-us\/contact-us\/\" class=\"navigation-tiles__tile-cta g-button\">Contact Us<\/a>\n                                            <\/div>\n                                    <div class=\"navigation-tiles__tile\">\n                                                    <h3 class=\"navigation-tiles__tile-title\">\n                                Installation guides                            <\/h3>\n                                                \n                                                    <div class=\"navigation-tiles__tile-description\">\n                                <p>Step by step fixing advice and detailing for every collection.<\/p>\n                            <\/div>\n                                                \n                                                    <a target=\"\" rel=\"\" href=\"https:\/\/www.millboard.com\/en-us\/product-brochures\/\" class=\"navigation-tiles__tile-cta g-button\">Browse guides<\/a>\n                                            <\/div>\n                                    <div class=\"navigation-tiles__tile\">\n                                                    <h3 class=\"navigation-tiles__tile-title\">\n                                Free product samples                            <\/h3>\n                                                \n                                                    <div class=\"navigation-tiles__tile-description\">\n                                <p>Order some samples to see how Millboard works for your project.<\/p>\n                            <\/div>\n                                                \n                                                    <a target=\"\" rel=\"\" href=\"https:\/\/www.www.millboard.com\/en-us\/product-category\/siding-samples\/\" class=\"navigation-tiles__tile-cta g-button\">Order Samples Today<\/a>\n                                            <\/div>\n                            <\/div>\n            <\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":10,"featured_media":0,"parent":719,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"content-type":"","footnotes":""},"class_list":["post-6442","page","type-page","status-publish","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.3 (Yoast SEO v27.3) - 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Strong, durable foundations for long-lasting composite decking.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.millboard.com\/en-us\/composite-decking-collections\/decking-subframes\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Decking Subframes\" \/>\n<meta property=\"og:description\" content=\"Explore Millboard decking subframe systems including Plas-Pro, DuoSpan and DuoLift. 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