{"id":4061,"date":"2025-06-22T15:39:16","date_gmt":"2025-06-22T22:39:16","guid":{"rendered":"https:\/\/www.accordionboot.com\/shop\/?p=4061"},"modified":"2025-07-01T14:44:25","modified_gmt":"2025-07-01T21:44:25","slug":"how-to-install-an-accordion-boot-box-truck-conversion","status":"publish","type":"post","link":"https:\/\/www.accordionboot.com\/shop\/how-to-install-an-accordion-boot-box-truck-conversion\/","title":{"rendered":"How to Install an Accordion Boot Box Truck Conversion"},"content":{"rendered":"\n<p><em>DIY Tips: Converting a Box Truck Into a Livable Rig<\/em><\/p>\n\n\n\n<p>In this article we will look at converting a box truck into a livable space. This is great for <a href=\"https:\/\/forum.expeditionportal.com\/\" target=\"_blank\" rel=\"noreferrer noopener\">expedition vehicles<\/a> , mobile business, or off-grid travel. This is a popular DIY project. But one upgrade that\u2019s totally worth the effort is a <strong>pass-through opening<\/strong> between the cab and the box for an accordion boot box truck conversion.<\/p>\n\n\n\n<p>This makes the build feel more like an RV or van. It also provide you with<strong> convenience<\/strong>. The best way to seal that pass-through is using a flexible, weatherproof <strong>accordion boot<\/strong>.<\/p>\n\n\n\n<p>We will show you how to connect your <a href=\"https:\/\/www.truckconversion.net\/\" target=\"_blank\" rel=\"noreferrer noopener\">box truck cab<\/a> to the rear box using an accordion boot . Along with that how to overcome one of the biggest challenges: <strong>lack of a flange<\/strong> on the box wall.<\/p>\n\n\n\n<!--more-->\n\n\n\n<h2 class=\"wp-block-heading\">Why Create a Cab-to-Box Pass-Through?<\/h2>\n\n\n\n<p>If you are living in your box truck or using it for mobile work, a pass-through provides major advantages:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Stay inside during bad weather<\/strong><\/li>\n\n\n\n<li><strong>Access your gear or living space from the driver\u2019s seat<\/strong><\/li>\n\n\n\n<li><strong>Improve airflow or install wiring\/fan systems<\/strong><\/li>\n\n\n\n<li><strong>Enhance stealth camping and safety<\/strong><\/li>\n<\/ul>\n\n\n\n<p>Without a proper seal between the cab and box, though, you&#8217;re exposing yourself to:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Rain and wind leaks<\/li>\n\n\n\n<li>Dust and <a href=\"https:\/\/www.nhtsa.gov\" target=\"_blank\" rel=\"noreferrer noopener\">exhaust fumes<\/a><\/li>\n\n\n\n<li>Temperature loss<\/li>\n\n\n\n<li>Increased road noise<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">What Is an Accordion Boot?<\/h2>\n\n\n\n<p>An accordion boot is a <strong>flexible rubber gasket<\/strong> that compresses and expands to fill the gap between the truck cab and box,<\/p>\n\n\n\n<p>The accordion boot is made with rugged <strong><a href=\"https:\/\/epdmroofs.org\/epdm\/technical-information\/\" target=\"_blank\" rel=\"noreferrer noopener\">EPDM rubber<\/a><\/strong> with a built-in <strong>spring steel clip<\/strong>. it creates a seal between the gap while allowing flex and movement. This is the same item used in truck camper setups. accordion boots are now popular among <strong>DIY mobile living conversions<\/strong>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Step-by-Step: How to Install an Accordion Boot in a Box Truck<\/h2>\n\n\n<div class=\"saswp-how-to-block-section\"><div class=\"saswp-how-to-block-steps\"><ol style=\"list-style-type:none;\"><li><h3 class=\"\"> <strong>Measure the Perimeter and Gap<\/strong> <\/h3><p class=\"saswp-how-to-step-text\">Determine the size and placement of the pass through opening<br><br>Use a tape measure to find the <strong>perimeter<\/strong> of the opening<br><br>Measure the <strong>gap distance<\/strong> between the cab and box \u2014 depending on the truck the gap can vary between <strong>2&#8243; and 6&#8243;<\/strong><br><br>The cab and box opening <strong>perimeters must be similar in size<\/strong> for the boot to seal properly<\/p><\/li><li><h3 class=\"\"> <strong>Cut the Openings in the Cab and Box<\/strong> <\/h3><p class=\"saswp-how-to-step-text\">Plan and mark a pass-through opening that matches between the cab rear wall and the front of the box<br><br>Use a jigsaw or reciprocating saw to cut out the two opening<br><br>Take note of any wiring or structural supports<br><br>Deburr and clean the edges<\/p><\/li><li><h3 class=\"\"> <strong>Address the Flange Problem on the Box<\/strong> <\/h3><p class=\"saswp-how-to-step-text\">Some truck boxes are <strong>flat panel walls<\/strong> with no built-in flange. Since the accordion boot uses a <strong>spring steel clip<\/strong> to grab onto a flange, you\u2019ll might need to <strong>add one yourself<\/strong>. This is a case by case situation<br><br>Here are some ideas to create a flange:<br><br>Use <strong>1\/8&#8243; thick aluminum, fiberglass or steel bar stock<\/strong> to create a mounting flange around the opening<br><br>Cut strips to match each side of the opening and fasten with <strong>rivets or self-tapping screws<\/strong><br><br>Paint or seal to prevent corrosion<br><br>Ensure the flange lip is wide enough (at least 1\/2&#8243;) for the boot to grip<br><br>Tip: Add a bead of sealant behind the flange strip helps with waterproofing and adhesion<\/p><\/li><li><h3 class=\"\"> <strong>Install the Accordion Boot<\/strong> <\/h3><p class=\"saswp-how-to-step-text\">Starting at the middle bottom of the opening slide one side of the boot over the <strong>cab sheet metal<\/strong><br><br>Slide the other side on the <strong>box side<\/strong><br><br>Press the boot slightly to secure it. You can also use a soft mallet to tap down the boot.<br><br>Work your way around the opening until the ends meet.<br><br>Trim the ends so the the section with the clip butt up to each other and the accordion section overlap a couple of inches.<\/p><\/li><\/ul><\/div><div class=\"saswp-how-to-block-tools\"><\/div><div class=\"saswp-how-to-block-material\"><\/div><\/div>\n\n\n<h2 class=\"wp-block-heading\">Find the Right Accordion Boot Box Truck Conversion<\/h2>\n\n\n\n<p>Our accordion boots are crafted from <strong>EPDM rubber<\/strong> with a <strong>spring steel embedded into the rubber<\/strong> for fast, flexible mounting. They work great for box trucks, DIY RVs, and custom conversions.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/www.accordionboot.com\/shop\/product-category\/rubber-boot-seal\/\">Shop Accordion Boots Now \u00bb<\/a><\/li>\n\n\n\n<li><a class=\"\" href=\"https:\/\/www.accordionboot.com\/Calculate-Measurements.php\">Use the Boot Opening Calculator \u00bb<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.accordionboot.com\/shop\/contact\/\">Contact Us for questions or assitance \u00bb<\/a><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Final Thoughts Box Truck Conversion<\/h2>\n\n\n\n<p>A cab-to-box pass-through is one of the best upgrades you can add to a DIY box truck conversion. Whether you&#8217;re building a stealth camper, mobile workshop, or rolling tiny home, the <strong>accordion boot gives you the access<\/strong> between compartments. It provide a clean, functional, and weather-tight solution.<\/p>\n\n\n<div class=\"saswp-faq-block-section\"><ol style=\"list-style-type:none\"><li style=\"list-style-type: none\"><h5 class=\"saswp-faq-question-title \"><strong>Can I install an accordion boot on a box truck without a flange?<\/strong><\/h5><p class=\"saswp-faq-answer-text\">If no flange or thin wall is present you\u2019ll need to <strong>fabricate a flange<\/strong> around the opening using materials like aluminum, steel or other rigid material that is about 1\/8&#8243; thick. The accordion boot\u2019s spring steel clip needs something to grip, so creating a rigid mounting surface is essential for a secure fit.<\/p><li style=\"list-style-type: none\"><h5 class=\"saswp-faq-question-title \"><strong>Will the accordion boot keep rain and dust out?<\/strong><\/h5><p class=\"saswp-faq-answer-text\">Yes, when properly installed, the accordion boot creates a <strong>weatherproof and dust-resistant seal<\/strong> between the cab and the box. <\/p><li style=\"list-style-type: none\"><h5 class=\"saswp-faq-question-title \"><strong>How much movement can the accordion boot handle?<\/strong><\/h5><p class=\"saswp-faq-answer-text\">Accordion boots are designed to <strong>flex and compress<\/strong>, typically accommodating <strong>various gap sizes<\/strong> depending on the size boot with some movement. This is the primary reason for this item where the cab and box flex slightly while driving. An estimate for the flex is is the size of the gap minus the maximum stretch of the accordion size. <\/p><li style=\"list-style-type: none\"><h5 class=\"saswp-faq-question-title \"><strong>Is the accordion boot good for insulation in cold or hot weather?<\/strong><\/h5><p class=\"saswp-faq-answer-text\">While the boot itself doesn\u2019t offer thermal insulation, it does seal off airflow, which helps maintain climate control between compartments. For additional thermal insulation you can add other forms of insulating materials over the pass-through area for better temperature regulation.<\/p><\/ul><\/div>\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p><\/p>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Turn your box truck into a livable or functional rig with an accordion boot box truck conversion. This guide shows how to connect the cab and box for full access.<\/p>\n","protected":false},"author":1,"featured_media":4110,"comment_status":"open","ping_status":"open","sticky":false,"template":"single-nosidebar.php","format":"standard","meta":{"fifu_image_url":"","fifu_image_alt":"","footnotes":""},"categories":[210],"tags":[],"class_list":["post-4061","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-accordion-rubber-boot"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>How to Install an Accordion Boot Box Truck Conversion<\/title>\n<meta name=\"description\" content=\"Build your accordion boot box truck conversion the right way. 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