{"id":17816,"date":"2026-05-28T16:14:53","date_gmt":"2026-05-28T15:14:53","guid":{"rendered":"https:\/\/www.fhbrundle.co.uk\/lp\/?post_type=avada_faq&#038;p=17816"},"modified":"2026-05-28T16:14:53","modified_gmt":"2026-05-28T15:14:53","slug":"how-do-i-calculate-the-exact-number-of-crash-barrier-beams-posts-needed-for-a-specific-run-length","status":"publish","type":"avada_faq","link":"https:\/\/www.fhbrundle.co.uk\/lp\/blog\/faq-items\/how-do-i-calculate-the-exact-number-of-crash-barrier-beams-posts-needed-for-a-specific-run-length\/","title":{"rendered":"How do I calculate the exact number of crash barrier beams &#038; posts needed for a specific run length?"},"content":{"rendered":"<p>Standard Armco corrugated beams have an <b data-path-to-node=\"17\" data-index-in-node=\"48\">overall length of 3.5m<\/b>, but because they overlap at the joints, they provide an <b data-path-to-node=\"17\" data-index-in-node=\"128\">effective coverage length of 3.2m<\/b>.<\/p>\n<p>To calculate your required materials:<\/p>\n<p style=\"padding-left: 40px;\" data-path-to-node=\"20,0,0\">(1) Divide your total required length by 3.2m to get the number of beams (round up).<\/p>\n<p style=\"padding-left: 40px;\" data-path-to-node=\"20,1,0\">(2) For post spacing, the standard is <b data-path-to-node=\"20,1,0\" data-index-in-node=\"34\">3.2m centres<\/b> (one post per beam lap) for general use, or <b data-path-to-node=\"20,1,0\" data-index-in-node=\"91\">1.6m centres<\/b> (two posts per beam) for high-impact areas requiring double the structural strength.<\/p>\n<p style=\"padding-left: 40px;\" data-path-to-node=\"20,2,0\">(3) Always add <b data-path-to-node=\"20,2,0\" data-index-in-node=\"11\">one extra post<\/b> to finish the end of the final run.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Standard Armco corrugated beams have an overall length of 3.5m, [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","format":"standard","meta":{"footnotes":""},"faq_category":[195],"class_list":["post-17816","avada_faq","type-avada_faq","status-publish","format-standard","hentry","faq_category-armco-crash-barriers"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.5 (Yoast SEO v27.7) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>How do I calculate the exact number of crash barrier beams &amp; posts needed for a specific run length? 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