{"id":4686,"date":"2025-04-30T09:02:10","date_gmt":"2025-04-30T09:02:10","guid":{"rendered":"https:\/\/roadskyguardrail.com\/?p=4686"},"modified":"2025-07-02T07:39:43","modified_gmt":"2025-07-02T07:39:43","slug":"highway-guardrail-dimensions-a-complete-guide","status":"publish","type":"post","link":"https:\/\/roadskyguardrail.com\/it\/highway-guardrail-dimensions-a-complete-guide","title":{"rendered":"Dimensioni dei guardrail autostradali: Una guida completa"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_82_2 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\">Indice dei contenuti<\/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=\"Allinea la tabella dei contenuti\"><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:\/\/roadskyguardrail.com\/it\/highway-guardrail-dimensions-a-complete-guide\/#What_is_a_Highway_Guardrail\" >Che cos'\u00e8 un guardrail autostradale?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/roadskyguardrail.com\/it\/highway-guardrail-dimensions-a-complete-guide\/#Standard_Highway_Guardrail_Dimensions\" >Dimensioni standard dei guardrail autostradali<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/roadskyguardrail.com\/it\/highway-guardrail-dimensions-a-complete-guide\/#1_W-Beam_Guardrail_Dimensions_Most_Common_Type\" >1. Dimensioni del parapetto con trave a W (tipo pi\u00f9 comune)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/roadskyguardrail.com\/it\/highway-guardrail-dimensions-a-complete-guide\/#2_Thrie-Beam_Guardrail_Dimensions\" >2. Dimensioni del parapetto a tre travi<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/roadskyguardrail.com\/it\/highway-guardrail-dimensions-a-complete-guide\/#3_End_Terminals_and_Transitions\" >3. Terminali e transizioni<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/roadskyguardrail.com\/it\/highway-guardrail-dimensions-a-complete-guide\/#Key_Components_That_Affect_Guardrail_Sizing\" >Componenti chiave che influenzano il dimensionamento dei parapetti<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/roadskyguardrail.com\/it\/highway-guardrail-dimensions-a-complete-guide\/#Regional_Differences_in_Guardrail_Dimensions\" >Differenze regionali nelle dimensioni dei guardrail<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/roadskyguardrail.com\/it\/highway-guardrail-dimensions-a-complete-guide\/#United_States_AASHTO_M180\" >Stati Uniti (AASHTO M180):<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/roadskyguardrail.com\/it\/highway-guardrail-dimensions-a-complete-guide\/#Europe_EN_1317\" >Europa (EN 1317):<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/roadskyguardrail.com\/it\/highway-guardrail-dimensions-a-complete-guide\/#Australia\" >Australia:<\/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:\/\/roadskyguardrail.com\/it\/highway-guardrail-dimensions-a-complete-guide\/#Factors_to_Consider_When_Choosing_Guardrail_Dimensions\" >Fattori da considerare nella scelta delle dimensioni dei parapetti<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/roadskyguardrail.com\/it\/highway-guardrail-dimensions-a-complete-guide\/#FAQs\" >Domande frequenti<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/roadskyguardrail.com\/it\/highway-guardrail-dimensions-a-complete-guide\/#Conclusion\" >Conclusione<\/a><\/li><\/ul><\/nav><\/div>\n\n\n\n<p>Quando si parla di sicurezza autostradale, i guardrail svolgono un ruolo fondamentale nel proteggere i conducenti, ridurre la gravit\u00e0 degli incidenti e impedire ai veicoli di uscire dalla carreggiata. Uno degli aspetti pi\u00f9 importanti delle prestazioni di un guardrail sono le sue dimensioni, che ne determinano la capacit\u00e0 di assorbire gli impatti e deviare efficacemente i veicoli.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"What_is_a_Highway_Guardrail\"><\/span>Che cos'\u00e8 un guardrail autostradale?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>A <strong><a href=\"https:\/\/roadskyguardrail.com\/it\/\" target=\"_blank\" rel=\"noreferrer noopener\" style=\"text-decoration: underline;\">guardrail autostradale<\/a><\/strong> \u00e8 una barriera di sicurezza installata lungo i lati di strade, ponti o mediane per ridurre l'impatto delle collisioni. I guardrail sono progettati per:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Indirizzare i veicoli erranti<\/li>\n\n\n\n<li>Prevenire gli incidenti da ribaltamento<\/li>\n\n\n\n<li>Ridurre al minimo le lesioni in caso di impatto<\/li>\n\n\n\n<li>Proteggere i pedoni e le strutture stradali<\/li>\n<\/ul>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"400\" src=\"https:\/\/roadskyguardrail.com\/wp-content\/uploads\/2025\/04\/Standard-Highway-Guardrail-Dimensions.jpg\" alt=\"\" class=\"wp-image-4689\" srcset=\"https:\/\/roadskyguardrail.com\/wp-content\/uploads\/2025\/04\/Standard-Highway-Guardrail-Dimensions.jpg 600w, https:\/\/roadskyguardrail.com\/wp-content\/uploads\/2025\/04\/Standard-Highway-Guardrail-Dimensions-400x267.jpg 400w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/figure><\/div>\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Standard_Highway_Guardrail_Dimensions\"><\/span>Dimensioni standard dei guardrail autostradali<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"1_W-Beam_Guardrail_Dimensions_Most_Common_Type\"><\/span>1. <a href=\"https:\/\/roadskyguardrail.com\/it\/w-beam\" target=\"_blank\" rel=\"noreferrer noopener\" style=\"text-decoration: underline;\">Parapetto con trave a W<\/a> Dimensioni (tipo pi\u00f9 comune)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>La trave a W \u00e8 il tipo di guardrail pi\u00f9 comunemente utilizzato sulle autostrade di tutto il mondo.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th class=\"has-text-align-left\" data-align=\"left\">Componente<\/th><th class=\"has-text-align-left\" data-align=\"left\">Dimensione standard<\/th><\/tr><\/thead><tbody><tr><td class=\"has-text-align-left\" data-align=\"left\">Lunghezza della guida<\/td><td class=\"has-text-align-left\" data-align=\"left\">4,32 m (14 piedi) o 3,81 m (12,5 piedi)<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Altezza della guida (fuori terra)<\/td><td class=\"has-text-align-left\" data-align=\"left\">Da 750 mm a 810 mm (da 29,5\u2033 a 32\u2033)<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Spessore della guida<\/td><td class=\"has-text-align-left\" data-align=\"left\">2,67 mm (calibro 12) o 3,43 mm (calibro 10)<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Altezza della posta<\/td><td class=\"has-text-align-left\" data-align=\"left\">Palo in acciaio standard da 1828,8 mm (6 piedi)<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Distanza tra i pali<\/td><td class=\"has-text-align-left\" data-align=\"left\">1905 mm (6 ft 3 in) da centro a centro<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>I parapetti con travi a W sono generalmente montati su pali in acciaio con canale a C o a I, che vengono conficcati nel terreno o inseriti nel calcestruzzo, a seconda delle condizioni del sito.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"2_Thrie-Beam_Guardrail_Dimensions\"><\/span>2. <a href=\"https:\/\/roadskyguardrail.com\/it\/thrie-beam\" target=\"_blank\" rel=\"noreferrer noopener\" style=\"text-decoration: underline;\">Parapetto a tre travi<\/a> Dimensioni<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>I guardrail a trave sono pi\u00f9 larghi e offrono una migliore resistenza agli urti, spesso utilizzati nelle zone ad alta velocit\u00e0 o ad alto impatto.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th class=\"has-text-align-left\" data-align=\"left\">Componente<\/th><th class=\"has-text-align-left\" data-align=\"left\">Dimensione standard<\/th><\/tr><\/thead><tbody><tr><td class=\"has-text-align-left\" data-align=\"left\">Lunghezza della guida<\/td><td class=\"has-text-align-left\" data-align=\"left\">4,32 m (14 ft)<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Larghezza della guida<\/td><td class=\"has-text-align-left\" data-align=\"left\">Circa 510 mm (20\u2033)<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Distanza tra i pali<\/td><td class=\"has-text-align-left\" data-align=\"left\">Come la trave W (1905 mm)<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>Spesso vengono installati dove \u00e8 necessario un maggiore contenimento, ad esempio in prossimit\u00e0 delle mediane, sui ponti o in aree con traffico pesante di camion.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"3_End_Terminals_and_Transitions\"><\/span>3. <a href=\"https:\/\/roadskyguardrail.com\/it\/guardrail-end-terminal\" target=\"_blank\" rel=\"noreferrer noopener\" style=\"text-decoration: underline;\">Terminali finali<\/a> e transizioni<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>I terminali sono essenziali per l'assorbimento dell'energia e la chiusura sicura del sistema di guardrail.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th class=\"has-text-align-left\" data-align=\"left\">Componente<\/th><th class=\"has-text-align-left\" data-align=\"left\">Dimensione \/ Lunghezza<\/th><\/tr><\/thead><tbody><tr><td class=\"has-text-align-left\" data-align=\"left\">Terminale finale Lunghezza<\/td><td class=\"has-text-align-left\" data-align=\"left\">Da 3 a 12 m, a seconda del tipo<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Sezioni di transizione<\/td><td class=\"has-text-align-left\" data-align=\"left\">Rastremato per collegare la trave a W alla trave a T o ai parapetti dei ponti<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Key_Components_That_Affect_Guardrail_Sizing\"><\/span>Componenti chiave che influenzano il dimensionamento dei parapetti<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Estremit\u00e0 dei terminali<\/strong>: La lunghezza e la forma influiscono sulla lunghezza totale del guardrail.<\/li>\n\n\n\n<li><strong>Profondit\u00e0 di incasso del palo<\/strong>: Di solito 1,2-1,5 metri per un supporto stabile.<\/li>\n\n\n\n<li><strong>Bloccaggi<\/strong>: Distanziatori tra la rotaia e il palo, in genere profondi 8\u201d o 12\u201d.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Regional_Differences_in_Guardrail_Dimensions\"><\/span>Differenze regionali nelle dimensioni dei guardrail<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"United_States_AASHTO_M180\"><\/span>Stati Uniti (AASHTO M180):<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Altezza della guida<\/strong>: 31\u2033<\/li>\n\n\n\n<li><strong>Lunghezza standard<\/strong>: 12\u20196\u2033<\/li>\n\n\n\n<li><strong>Distanza tra i pali<\/strong>: 6\u20193\u2033<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Europe_EN_1317\"><\/span>Europa (EN 1317):<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Altezza della guida<\/strong>: In genere 750-900 mm<\/li>\n\n\n\n<li>I parapetti devono soddisfare le classi di prestazione (N2, H1, H2, ecc.).<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Australia\"><\/span>Australia:<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Altezza della guida<\/strong>: ~700 mm<\/li>\n\n\n\n<li><strong>Lunghezze dei binari<\/strong>: 3,81 m (12\u20196\u2033) o personalizzato<\/li>\n<\/ul>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"400\" src=\"https:\/\/roadskyguardrail.com\/wp-content\/uploads\/2025\/04\/Factors-to-Consider-When-Choosing-Guardrail-Dimensions.jpg\" alt=\"Fattori da considerare nella scelta delle dimensioni dei parapetti\" class=\"wp-image-4690\" srcset=\"https:\/\/roadskyguardrail.com\/wp-content\/uploads\/2025\/04\/Factors-to-Consider-When-Choosing-Guardrail-Dimensions.jpg 600w, https:\/\/roadskyguardrail.com\/wp-content\/uploads\/2025\/04\/Factors-to-Consider-When-Choosing-Guardrail-Dimensions-400x267.jpg 400w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/figure><\/div>\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Factors_to_Consider_When_Choosing_Guardrail_Dimensions\"><\/span>Fattori da considerare nella scelta delle dimensioni dei parapetti<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Tipo di strada e limite di velocit\u00e0<\/strong>: Le autostrade ad alta velocit\u00e0 richiedono barriere pi\u00f9 alte e robuste.<\/li>\n\n\n\n<li><strong>Tipi di veicoli<\/strong>: Le strade frequentate dagli autocarri possono richiedere sistemi pi\u00f9 robusti o pi\u00f9 alti.<\/li>\n\n\n\n<li><strong>Condizioni del sito<\/strong>: Il tipo di terreno, la pendenza e i pericoli della strada influenzano la lunghezza dei pali e la distanza tra i binari.<\/li>\n\n\n\n<li><strong>Conformit\u00e0 normativa<\/strong>: Seguire sempre gli standard nazionali come AASHTO M180 o EN 1317.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"FAQs\"><\/span>Domande frequenti<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<div class=\"schema-faq wp-block-yoast-faq-block\"><div class=\"schema-faq-section\" id=\"faq-question-1746003152669\"><strong class=\"schema-faq-question\">L'altezza del parapetto pu\u00f2 essere regolata?<\/strong> <p class=\"schema-faq-answer\">S\u00ec, a seconda del tipo di strada e dei dati sugli incidenti dei veicoli, alcune installazioni possono richiedere un'altezza maggiore o minore dei binari.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1746003184697\"><strong class=\"schema-faq-question\">Qual \u00e8 la lunghezza minima del guardrail necessaria per la sicurezza?<\/strong> <p class=\"schema-faq-answer\">In genere, per una piena efficacia, si raccomanda un minimo di 15 metri prima e dopo il pericolo.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1746003195433\"><strong class=\"schema-faq-question\">Tutti i guardrail sono zincati?<\/strong> <p class=\"schema-faq-answer\">La maggior parte \u00e8 zincata a caldo per soddisfare gli standard di resistenza alla corrosione, soprattutto per gli ambienti esterni e costieri.<\/p> <\/div> <\/div>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Conclusion\"><\/span>Conclusione<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Che si tratti di un appaltatore stradale, di un ingegnere civile o di un responsabile degli appalti, la comprensione delle dimensioni dei guardrail autostradali \u00e8 fondamentale per la sicurezza stradale e il successo del progetto. Assicuratevi di consultare le linee guida nazionali pertinenti e di lavorare con fornitori certificati per garantire che il vostro sistema di guardrail soddisfi gli standard normativi e prestazionali.<\/p>\n\n\n\n<p>Siete alla ricerca di un fornitore affidabile di sistemi di guardrail collaudati? <strong><a href=\"https:\/\/roadskyguardrail.com\/it\/contact\" target=\"_blank\" rel=\"noreferrer noopener\" style=\"text-decoration: underline;\">Contattateci<\/a><\/strong> per conoscere le specifiche, i prezzi e l'assistenza di un esperto.<\/p>","protected":false},"excerpt":{"rendered":"<p>When it comes to highway safety, guardrails play a critical role in protecting drivers, reducing crash severity, and preventing vehicles from leaving the roadway. One of the most important aspects of guardrail performance is its dimensions, which determine its ability to absorb impact and deflect vehicles effectively. What is a Highway Guardrail? A highway guardrail is a safety barrier installed along the sides of roads, bridges, or medians to reduce the impact of collisions. Guardrails are designed to: Standard Highway Guardrail Dimensions 1. W-Beam Guardrail Dimensions (Most Common Type) The W-beam is the most common type of guardrail used on highways worldwide. Component Standard Size Rail Length 4.32 m (14 ft) or 3.81 m (12.5 ft) Rail Height (above ground) 750 mm to 810 mm (29.5&#8243; to 32&#8243;) Rail Thickness 2.67 mm (12 gauge) or 3.43 mm (10 gauge) Post Height 1828.8 mm (6 ft) standard steel post Post Spacing 1905 mm (6 ft 3 in) center-to-center W-beam guardrails are &#8230;<\/p>","protected":false},"author":1,"featured_media":4689,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[22],"tags":[],"class_list":["post-4686","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-knowledge"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Highway Guardrail Dimensions: A Complete Guide - RoadSky<\/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:\/\/roadskyguardrail.com\/it\/highway-guardrail-dimensions-a-complete-guide\" \/>\n<meta property=\"og:locale\" content=\"it_IT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Highway Guardrail Dimensions: A Complete Guide - RoadSky\" \/>\n<meta property=\"og:description\" content=\"When it comes to highway safety, guardrails play a critical role in protecting drivers, reducing crash severity, and preventing vehicles from leaving the roadway. One of the most important aspects of guardrail performance is its dimensions, which determine its ability to absorb impact and deflect vehicles effectively. What is a Highway Guardrail? A highway guardrail is a safety barrier installed along the sides of roads, bridges, or medians to reduce the impact of collisions. Guardrails are designed to: Standard Highway Guardrail Dimensions 1. W-Beam Guardrail Dimensions (Most Common Type) The W-beam is the most common type of guardrail used on highways worldwide. Component Standard Size Rail Length 4.32 m (14 ft) or 3.81 m (12.5 ft) Rail Height (above ground) 750 mm to 810 mm (29.5&#8243; to 32&#8243;) Rail Thickness 2.67 mm (12 gauge) or 3.43 mm (10 gauge) Post Height 1828.8 mm (6 ft) standard steel post Post Spacing 1905 mm (6 ft 3 in) center-to-center W-beam guardrails are ...\" \/>\n<meta property=\"og:url\" content=\"https:\/\/roadskyguardrail.com\/it\/highway-guardrail-dimensions-a-complete-guide\" \/>\n<meta property=\"og:site_name\" content=\"Nanjing Roadsky Traffic Facility Co.,Ltd (Roadsky Corporation)\" \/>\n<meta property=\"article:published_time\" content=\"2025-04-30T09:02:10+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-07-02T07:39:43+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/roadskyguardrail.com\/wp-content\/uploads\/2025\/04\/Standard-Highway-Guardrail-Dimensions.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"600\" \/>\n\t<meta property=\"og:image:height\" content=\"400\" 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