{"id":3679,"date":"2026-03-02T10:06:11","date_gmt":"2026-03-02T10:06:11","guid":{"rendered":"https:\/\/www.ressatech.com\/?p=3679"},"modified":"2026-03-02T10:17:14","modified_gmt":"2026-03-02T10:17:14","slug":"door-sweeps-vs-auto-door-bottoms-whats-the-difference","status":"publish","type":"post","link":"https:\/\/www.ressatech.com\/zh\/door-sweeps-vs-auto-door-bottoms-whats-the-difference\/","title":{"rendered":"Door Sweeps vs. Auto Door Bottoms: What\u2019s The Difference?"},"content":{"rendered":"<div class=\"title\">\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_88 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-1'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.ressatech.com\/zh\/door-sweeps-vs-auto-door-bottoms-whats-the-difference\/#Door_Sweeps_vs_Auto_Door_Bottoms_Whats_The_Difference\" >Door Sweeps vs. Auto Door Bottoms: What\u2019s The Difference?<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><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:\/\/www.ressatech.com\/zh\/door-sweeps-vs-auto-door-bottoms-whats-the-difference\/#Door_Sweeps\" >Door Sweeps<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.ressatech.com\/zh\/door-sweeps-vs-auto-door-bottoms-whats-the-difference\/#Automatic_Door_Bottoms\" >Automatic Door Bottoms<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.ressatech.com\/zh\/door-sweeps-vs-auto-door-bottoms-whats-the-difference\/#Other_Door_Bottoms\" >Other Door Bottoms<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.ressatech.com\/zh\/door-sweeps-vs-auto-door-bottoms-whats-the-difference\/#Conclusion\" >Conclusion<\/a><\/li><\/ul><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h1 data-imt-p=\"1\"><span class=\"ez-toc-section\" id=\"Door_Sweeps_vs_Auto_Door_Bottoms_Whats_The_Difference\"><\/span>Door Sweeps vs. Auto Door Bottoms: What\u2019s The Difference?<span class=\"ez-toc-section-end\"><\/span><\/h1>\n<\/div>\n<div class=\"post-content text-editor\">\n<p data-imt-p=\"1\">The purpose of\u00a0weatherstripping, or \u201cgasketing\u201c, around a door opening is pretty straight-forward. There are gaps around the\u00a0door\u00a0so that the door can be opened and closed without binding on the\u00a0frame. These gaps, however, can allow air flow, sound, light, and smoke transmission.\u00a0Weatherstripping\u00a0effectively seals up the gaps all the way around the\u00a0frame\u00a0as well as the gap at the bottom of the door to prevent the transmission of unwanted elements when the door is closed. Weatherstripping can be used at exterior or interior openings.<\/p>\n<p data-imt-p=\"1\">Today\u2019s blog post will cover the ways the gap at the\u00a0<em>bottom<\/em>\u00a0of the door can be sealed.\u00a0Thresholds\u00a0are a common piece of hardware installed on the floor beneath the door to seal the gap. But usually there is some space left so that the door doesn\u2019t get stuck on the threshold as it\u2019s closing. This leftover space means there will still be some transmission of elements mentioned previously. This is where door sweeps and door bottoms come in.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Door_Sweeps\"><\/span><span data-imt-p=\"1\">Door Sweeps<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p data-imt-p=\"1\">Standard thresholds will usually still have about 1\/8\u2033 gap left between the bottom of the door and the top of the threshold. The simplest way to seal that gap is with what is called a door sweep.<\/p>\n<p data-imt-p=\"1\">A\u00a0<strong>door sweep<\/strong>\u00a0is a long strip of metal that holds a seal made of a\u00a0<a href=\"https:\/\/www.beaconcdl.com\/what-the-heck-is-gasketing\/\">material<\/a>\u00a0such as neoprene, silicone, or a nylon brush. This long strip of metal is surface mounted to the bottom of the\u00a0door. Ideally, the sweep should be\u00a0installed\u00a0so that is comes in contact with the bevel on the threshold but where the sweep will not touch the flooring material (i.e. carpet, tile) as the door swings open and closed. (These aren\u2019t meant to sweep the floor!)<\/p>\n<div id=\"gallery-1\" class=\"gallery galleryid-4318 gallery-columns-2 gallery-size-full\">\n<dl class=\"gallery-item\">\n<dt class=\"gallery-icon portrait\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-3685\" src=\"https:\/\/www.ressatech.com\/wp-content\/uploads\/2026\/03\/Door-Sweep-2-Brush-1-300x225.png\" alt=\"\" width=\"300\" height=\"225\" srcset=\"https:\/\/www.ressatech.com\/wp-content\/uploads\/2026\/03\/Door-Sweep-2-Brush-1-300x225.png 300w, https:\/\/www.ressatech.com\/wp-content\/uploads\/2026\/03\/Door-Sweep-2-Brush-1-510x383.png 510w, https:\/\/www.ressatech.com\/wp-content\/uploads\/2026\/03\/Door-Sweep-2-Brush-1-1024x768.png 1024w, https:\/\/www.ressatech.com\/wp-content\/uploads\/2026\/03\/Door-Sweep-2-Brush-1-768x576.png 768w, https:\/\/www.ressatech.com\/wp-content\/uploads\/2026\/03\/Door-Sweep-2-Brush-1-1536x1152.png 1536w, https:\/\/www.ressatech.com\/wp-content\/uploads\/2026\/03\/Door-Sweep-2-Brush-1-2048x1536.png 2048w, https:\/\/www.ressatech.com\/wp-content\/uploads\/2026\/03\/Door-Sweep-2-Brush-1-16x12.png 16w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/dt>\n<dd id=\"gallery-1-4319\" class=\"wp-caption-text gallery-caption\" data-imt-p=\"1\">Brush Sweep<\/dd>\n<\/dl>\n<dl class=\"gallery-item\">\n<dt class=\"gallery-icon portrait\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-3684\" src=\"https:\/\/www.ressatech.com\/wp-content\/uploads\/2026\/03\/Door-Sweep-1-Neoprene-1-300x225.png\" alt=\"\" width=\"300\" height=\"225\" srcset=\"https:\/\/www.ressatech.com\/wp-content\/uploads\/2026\/03\/Door-Sweep-1-Neoprene-1-300x225.png 300w, https:\/\/www.ressatech.com\/wp-content\/uploads\/2026\/03\/Door-Sweep-1-Neoprene-1-510x383.png 510w, https:\/\/www.ressatech.com\/wp-content\/uploads\/2026\/03\/Door-Sweep-1-Neoprene-1-1024x768.png 1024w, https:\/\/www.ressatech.com\/wp-content\/uploads\/2026\/03\/Door-Sweep-1-Neoprene-1-768x576.png 768w, https:\/\/www.ressatech.com\/wp-content\/uploads\/2026\/03\/Door-Sweep-1-Neoprene-1-1536x1152.png 1536w, https:\/\/www.ressatech.com\/wp-content\/uploads\/2026\/03\/Door-Sweep-1-Neoprene-1-2048x1536.png 2048w, https:\/\/www.ressatech.com\/wp-content\/uploads\/2026\/03\/Door-Sweep-1-Neoprene-1-16x12.png 16w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/dt>\n<dd id=\"gallery-1-4320\" class=\"wp-caption-text gallery-caption\" data-imt-p=\"1\">Silicone Sweep<\/dd>\n<\/dl>\n<\/div>\n<p>\u00a0<\/p>\n<p data-imt-p=\"1\">Door sweeps can be ordered in a range of sizes and lengths, depending on the gap at the bottom of the door.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Automatic_Door_Bottoms\"><\/span><span data-imt-p=\"1\">Automatic Door Bottoms<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p data-imt-p=\"1\">To get a better seal at the bottom of the\u00a0door\u00a0you can use\u00a0<strong>automatic door bottoms<\/strong>\u00a0instead. An automatic door bottom is adjustable and often provides a better seal. An automatic door bottom is bulkier than a door sweep but the reason is because of what is on the inside. The \u201cautomatic\u201d part is a rod that protrudes slightly on one end that acts almost like a button.<\/p>\n<p data-imt-p=\"1\">When the\u00a0door\u00a0is closed, the button (usually located on the\u00a0hinge side\u00a0of the door) is pressed in by the\u00a0soffit of the frame\u00a0which causes the seal to drop and close the gap at the bottom of the door. When the door is opened, the activator \u201cbutton\u201d releases and the seal material is pulled up inside the door bottom which allows the door to swing open and closed without the seal material dragging along the floor.<\/p>\n<blockquote>\n<p><em data-imt-p=\"1\">The distance that the seal drops can be adjusted to create the best seal possible.<\/em><\/p>\n<\/blockquote>\n<p data-imt-p=\"1\">There are three ways to mount an automatic door bottom: surface, half mortise, and full mortise.\u00a0Fire ratings\u00a0may determine which type of door bottom you can use. Auto door bottoms are often used for STC ratings and can also be lead lined for X-ray rooms.<\/p>\n<div id=\"gallery-2\" class=\"gallery galleryid-4318 gallery-columns-3 gallery-size-full\">\n<dl class=\"gallery-item\">\n<dt class=\"gallery-icon landscape\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-3681\" src=\"https:\/\/www.ressatech.com\/wp-content\/uploads\/2026\/03\/Auto-Door-Bottom-1-Surface-1-300x225.png\" alt=\"\" width=\"300\" height=\"225\" srcset=\"https:\/\/www.ressatech.com\/wp-content\/uploads\/2026\/03\/Auto-Door-Bottom-1-Surface-1-300x225.png 300w, https:\/\/www.ressatech.com\/wp-content\/uploads\/2026\/03\/Auto-Door-Bottom-1-Surface-1-510x383.png 510w, https:\/\/www.ressatech.com\/wp-content\/uploads\/2026\/03\/Auto-Door-Bottom-1-Surface-1-1024x768.png 1024w, https:\/\/www.ressatech.com\/wp-content\/uploads\/2026\/03\/Auto-Door-Bottom-1-Surface-1-768x576.png 768w, https:\/\/www.ressatech.com\/wp-content\/uploads\/2026\/03\/Auto-Door-Bottom-1-Surface-1-1536x1152.png 1536w, https:\/\/www.ressatech.com\/wp-content\/uploads\/2026\/03\/Auto-Door-Bottom-1-Surface-1-2048x1536.png 2048w, https:\/\/www.ressatech.com\/wp-content\/uploads\/2026\/03\/Auto-Door-Bottom-1-Surface-1-16x12.png 16w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/dt>\n<dd id=\"gallery-2-4323\" class=\"wp-caption-text gallery-caption\" data-imt-p=\"1\">Surface Mounted<\/dd>\n<\/dl>\n<dl class=\"gallery-item\">\n<dt class=\"gallery-icon landscape\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-3682\" src=\"https:\/\/www.ressatech.com\/wp-content\/uploads\/2026\/03\/Auto-Door-Bottom-2-Half-Mortise-1-300x225.png\" alt=\"\" width=\"300\" height=\"225\" srcset=\"https:\/\/www.ressatech.com\/wp-content\/uploads\/2026\/03\/Auto-Door-Bottom-2-Half-Mortise-1-300x225.png 300w, https:\/\/www.ressatech.com\/wp-content\/uploads\/2026\/03\/Auto-Door-Bottom-2-Half-Mortise-1-510x383.png 510w, https:\/\/www.ressatech.com\/wp-content\/uploads\/2026\/03\/Auto-Door-Bottom-2-Half-Mortise-1-1024x768.png 1024w, https:\/\/www.ressatech.com\/wp-content\/uploads\/2026\/03\/Auto-Door-Bottom-2-Half-Mortise-1-768x576.png 768w, https:\/\/www.ressatech.com\/wp-content\/uploads\/2026\/03\/Auto-Door-Bottom-2-Half-Mortise-1-1536x1152.png 1536w, https:\/\/www.ressatech.com\/wp-content\/uploads\/2026\/03\/Auto-Door-Bottom-2-Half-Mortise-1-2048x1536.png 2048w, https:\/\/www.ressatech.com\/wp-content\/uploads\/2026\/03\/Auto-Door-Bottom-2-Half-Mortise-1-16x12.png 16w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/dt>\n<dd id=\"gallery-2-4321\" class=\"wp-caption-text gallery-caption\" data-imt-p=\"1\">Half Mortise<\/dd>\n<\/dl>\n<dl class=\"gallery-item\">\n<dt class=\"gallery-icon landscape\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-3683\" src=\"https:\/\/www.ressatech.com\/wp-content\/uploads\/2026\/03\/Auto-Door-Bottom-3-Full-Mortise-1-300x225.png\" alt=\"\" width=\"300\" height=\"225\" srcset=\"https:\/\/www.ressatech.com\/wp-content\/uploads\/2026\/03\/Auto-Door-Bottom-3-Full-Mortise-1-300x225.png 300w, https:\/\/www.ressatech.com\/wp-content\/uploads\/2026\/03\/Auto-Door-Bottom-3-Full-Mortise-1-510x383.png 510w, https:\/\/www.ressatech.com\/wp-content\/uploads\/2026\/03\/Auto-Door-Bottom-3-Full-Mortise-1-1024x768.png 1024w, https:\/\/www.ressatech.com\/wp-content\/uploads\/2026\/03\/Auto-Door-Bottom-3-Full-Mortise-1-768x576.png 768w, https:\/\/www.ressatech.com\/wp-content\/uploads\/2026\/03\/Auto-Door-Bottom-3-Full-Mortise-1-1536x1152.png 1536w, https:\/\/www.ressatech.com\/wp-content\/uploads\/2026\/03\/Auto-Door-Bottom-3-Full-Mortise-1-2048x1536.png 2048w, https:\/\/www.ressatech.com\/wp-content\/uploads\/2026\/03\/Auto-Door-Bottom-3-Full-Mortise-1-16x12.png 16w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/dt>\n<dd id=\"gallery-2-4322\" class=\"wp-caption-text gallery-caption\" data-imt-p=\"1\">Full Mortise<\/dd>\n<\/dl>\n<\/div>\n<h3><span class=\"ez-toc-section\" id=\"Other_Door_Bottoms\"><\/span><span data-imt-p=\"1\">Other Door Bottoms<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p data-imt-p=\"1\">Another type of door bottom is called a \u201cdoor shoe\u201d. A\u00a0<strong>door shoe<\/strong>\u00a0will have\u00a0<a href=\"https:\/\/www.beaconcdl.com\/what-the-heck-is-gasketing\/\">seal material<\/a>\u00a0underneath the door and will either mount direct into the bottom of the door or will wrap the bottom of the door and fasten to the face of the door on one or both sides of the door. The undercut of the door needs to be coordinated with these types of door bottoms so that they fit correctly. Some will fill the standard 3\/4\u2033 undercut while others can be 1\/4\u2033 to a 1\/2\u2033 tall.<\/p>\n<div id=\"gallery-3\" class=\"gallery galleryid-4318 gallery-columns-2 gallery-size-full\">\n<dl class=\"gallery-item\">\n<dt class=\"gallery-icon landscape\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-3687\" src=\"https:\/\/www.ressatech.com\/wp-content\/uploads\/2026\/03\/Other-Door-Bottoms-2-Door-Shoe-2-300x225.png\" alt=\"\" width=\"300\" height=\"225\" srcset=\"https:\/\/www.ressatech.com\/wp-content\/uploads\/2026\/03\/Other-Door-Bottoms-2-Door-Shoe-2-300x225.png 300w, https:\/\/www.ressatech.com\/wp-content\/uploads\/2026\/03\/Other-Door-Bottoms-2-Door-Shoe-2-510x383.png 510w, https:\/\/www.ressatech.com\/wp-content\/uploads\/2026\/03\/Other-Door-Bottoms-2-Door-Shoe-2-1024x768.png 1024w, https:\/\/www.ressatech.com\/wp-content\/uploads\/2026\/03\/Other-Door-Bottoms-2-Door-Shoe-2-768x576.png 768w, https:\/\/www.ressatech.com\/wp-content\/uploads\/2026\/03\/Other-Door-Bottoms-2-Door-Shoe-2-1536x1152.png 1536w, https:\/\/www.ressatech.com\/wp-content\/uploads\/2026\/03\/Other-Door-Bottoms-2-Door-Shoe-2-2048x1536.png 2048w, https:\/\/www.ressatech.com\/wp-content\/uploads\/2026\/03\/Other-Door-Bottoms-2-Door-Shoe-2-16x12.png 16w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/dt>\n<dd id=\"gallery-3-4324\" class=\"wp-caption-text gallery-caption\" data-imt-p=\"1\">Door Shoe Bottom<\/dd>\n<\/dl>\n<dl class=\"gallery-item\">\n<dt class=\"gallery-icon landscape\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-3686\" src=\"https:\/\/www.ressatech.com\/wp-content\/uploads\/2026\/03\/Other-Door-Bottoms-2-Door-Shoe-1-300x225.png\" alt=\"\" width=\"300\" height=\"225\" srcset=\"https:\/\/www.ressatech.com\/wp-content\/uploads\/2026\/03\/Other-Door-Bottoms-2-Door-Shoe-1-300x225.png 300w, https:\/\/www.ressatech.com\/wp-content\/uploads\/2026\/03\/Other-Door-Bottoms-2-Door-Shoe-1-510x383.png 510w, https:\/\/www.ressatech.com\/wp-content\/uploads\/2026\/03\/Other-Door-Bottoms-2-Door-Shoe-1-1024x768.png 1024w, https:\/\/www.ressatech.com\/wp-content\/uploads\/2026\/03\/Other-Door-Bottoms-2-Door-Shoe-1-768x576.png 768w, https:\/\/www.ressatech.com\/wp-content\/uploads\/2026\/03\/Other-Door-Bottoms-2-Door-Shoe-1-1536x1152.png 1536w, https:\/\/www.ressatech.com\/wp-content\/uploads\/2026\/03\/Other-Door-Bottoms-2-Door-Shoe-1-2048x1536.png 2048w, https:\/\/www.ressatech.com\/wp-content\/uploads\/2026\/03\/Other-Door-Bottoms-2-Door-Shoe-1-16x12.png 16w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/dt>\n<dd id=\"gallery-3-4325\" class=\"wp-caption-text gallery-caption\" data-imt-p=\"1\">Door Shoe Wraps Bottom<\/dd>\n<\/dl>\n<\/div>\n<h3><span class=\"ez-toc-section\" id=\"Conclusion\"><\/span><span data-imt-p=\"1\">Conclusion<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p data-imt-p=\"1\">These are only some of the ways to seal the gap at the bottom of\u00a0doors. There are diverse ways and the most important thing is to coordinate with the conditions at the opening to ensure the proper seals are used. Using\u00a0weatherstripping can provide cost savings for the building owner, it can prevent the transmission of light and sound as well as smoke in the case of a fire.\u00a0\u00a0to speak with a sales representative about the correct solution for your openings.<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Door Sweeps vs. Auto Door Bottoms: What\u2019s The Difference? The purpose of\u00a0weatherstripping, or \u201cgasketing\u201c, around a door opening is pretty straight-forward. There are gaps around the\u00a0door\u00a0so that the door can be opened and closed without binding on the\u00a0frame. These gaps, however, can allow air flow, sound, light, and smoke transmission.\u00a0Weatherstripping\u00a0effectively seals up the gaps all [&#8230;]\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-3679","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Door Sweeps vs. Auto Door Bottoms: What\u2019s The Difference? - Ressaseal<\/title>\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.ressatech.com\/zh\/door-sweeps-vs-auto-door-bottoms-whats-the-difference\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Door Sweeps vs. Auto Door Bottoms: What\u2019s The Difference? - Ressaseal\" \/>\n<meta property=\"og:description\" content=\"Door Sweeps vs. Auto Door Bottoms: What\u2019s The Difference? The purpose of\u00a0weatherstripping, or \u201cgasketing\u201c, around a door opening is pretty straight-forward. There are gaps around the\u00a0door\u00a0so that the door can be opened and closed without binding on the\u00a0frame. 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