{"id":4460,"date":"2020-03-16T01:31:00","date_gmt":"2020-03-16T01:31:00","guid":{"rendered":"http:\/\/mocktheorytest.com\/resources\/?p=4460"},"modified":"2026-03-11T00:37:31","modified_gmt":"2026-03-11T00:37:31","slug":"whats-a-skeletal-trailer","status":"publish","type":"post","link":"https:\/\/mocktheorytest.com\/resources\/whats-a-skeletal-trailer\/","title":{"rendered":"What&#8217;s a skeletal trailer?"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">A skeletal trailer is a minimal, lightweight metal trailer most commonly designed for transporting containers, although also capable of being used as a hook loader for loading a skip and a number of other specialist applications with the right attachments and supports. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">As standard shipping containers come in a number of sizes, skeletal trailers can either be specific to one particular size, extendable to accommodate multiple sizes or have multiple twist lock locations to give flexibility with sizes.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"450\" src=\"https:\/\/mocktheorytest.com\/resources\/wp-content\/uploads\/2020\/02\/twin-container-locks-1-600x450.jpg\" alt=\"\" class=\"wp-image-4463\" srcset=\"https:\/\/mocktheorytest.com\/resources\/wp-content\/uploads\/2020\/02\/twin-container-locks-1-600x450.jpg 600w, https:\/\/mocktheorytest.com\/resources\/wp-content\/uploads\/2020\/02\/twin-container-locks-1-300x225.jpg 300w, https:\/\/mocktheorytest.com\/resources\/wp-content\/uploads\/2020\/02\/twin-container-locks-1-768x576.jpg 768w, https:\/\/mocktheorytest.com\/resources\/wp-content\/uploads\/2020\/02\/twin-container-locks-1-1536x1152.jpg 1536w, https:\/\/mocktheorytest.com\/resources\/wp-content\/uploads\/2020\/02\/twin-container-locks-1.jpg 1920w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><figcaption class=\"wp-element-caption\">Twin container locks on a skeletal trailer<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Containers come in 20-foot, 30-foot, 40-foot, 45-foot and ISO intermodal sizes. The longest trailers can carry one 45-foot container or two 20-foot containers. <\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"400\" src=\"http:\/\/mocktheorytest.com\/resources\/wp-content\/uploads\/2020\/02\/skeletal-trailer-at-port-oakland--600x400.jpg\" alt=\"\" class=\"wp-image-4461\" srcset=\"https:\/\/mocktheorytest.com\/resources\/wp-content\/uploads\/2020\/02\/skeletal-trailer-at-port-oakland--600x400.jpg 600w, https:\/\/mocktheorytest.com\/resources\/wp-content\/uploads\/2020\/02\/skeletal-trailer-at-port-oakland--300x200.jpg 300w, https:\/\/mocktheorytest.com\/resources\/wp-content\/uploads\/2020\/02\/skeletal-trailer-at-port-oakland--768x512.jpg 768w, https:\/\/mocktheorytest.com\/resources\/wp-content\/uploads\/2020\/02\/skeletal-trailer-at-port-oakland-.jpg 1080w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><figcaption class=\"wp-element-caption\">Two skeletal trailers at a port in Oakland, California, waiting to be loaded, courtesy of <a href=\"https:\/\/flickr.com\/photos\/telstar\/135510702\/\">Todd Lappin<\/a>.<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"> The containers must be loaded onto the trailer using a straddle carrier, forklift or container handler. <\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"400\" src=\"https:\/\/mocktheorytest.com\/resources\/wp-content\/uploads\/2020\/02\/container-handler-and-truck-600x400.jpg\" alt=\"\" class=\"wp-image-4465\" srcset=\"https:\/\/mocktheorytest.com\/resources\/wp-content\/uploads\/2020\/02\/container-handler-and-truck-600x400.jpg 600w, https:\/\/mocktheorytest.com\/resources\/wp-content\/uploads\/2020\/02\/container-handler-and-truck-300x200.jpg 300w, https:\/\/mocktheorytest.com\/resources\/wp-content\/uploads\/2020\/02\/container-handler-and-truck-768x512.jpg 768w, https:\/\/mocktheorytest.com\/resources\/wp-content\/uploads\/2020\/02\/container-handler-and-truck-1536x1024.jpg 1536w, https:\/\/mocktheorytest.com\/resources\/wp-content\/uploads\/2020\/02\/container-handler-and-truck.jpg 1920w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><figcaption class=\"wp-element-caption\">A container handler drives past a skeletal trailer<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">With multiple ISO lock positions, trailers can be positioned so that the centre of gravity is optimised. For example, when carrying one 20-foot container, that should be able to be centre-mounted, as opposed to having it in the front or rear position.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"310\" src=\"https:\/\/mocktheorytest.com\/resources\/wp-content\/uploads\/2020\/02\/skeletal-trailer-with-container-in-rearmost-position-600x310.jpg\" alt=\"\" class=\"wp-image-4466\" srcset=\"https:\/\/mocktheorytest.com\/resources\/wp-content\/uploads\/2020\/02\/skeletal-trailer-with-container-in-rearmost-position-600x310.jpg 600w, https:\/\/mocktheorytest.com\/resources\/wp-content\/uploads\/2020\/02\/skeletal-trailer-with-container-in-rearmost-position-300x155.jpg 300w, https:\/\/mocktheorytest.com\/resources\/wp-content\/uploads\/2020\/02\/skeletal-trailer-with-container-in-rearmost-position-768x397.jpg 768w, https:\/\/mocktheorytest.com\/resources\/wp-content\/uploads\/2020\/02\/skeletal-trailer-with-container-in-rearmost-position-1536x794.jpg 1536w, https:\/\/mocktheorytest.com\/resources\/wp-content\/uploads\/2020\/02\/skeletal-trailer-with-container-in-rearmost-position.jpg 1822w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><figcaption class=\"wp-element-caption\">This container could be placed on position forwards if it was heavy, but it&#8217;s obviously not heavy as the truck driver has lifted an axle and the trailer wheels are singles, not duals. Photo courtesy of <a href=\"https:\/\/flickr.com\/photos\/lavulv\/44161619095\/\">Lav Ulv<\/a>.<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Sliding skeletal trailers are more expensive, but this convenience comes with the possibility of more wear and tear. Some skeletal trailers will have a tipping mechanism to allow for unloading containers filled with loose material.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The trailers have up to 12 <a href=\"https:\/\/en.wikipedia.org\/wiki\/Twistlock\">twist locks<\/a>, with a minimum of four twist locks. They will have up to four axles with single or dual wheels; one of the axles could be a <a href=\"https:\/\/mocktheorytest.com\/resources\/what-is-a-lift-axle-on-a-lorry-or-trailer\/\">lift axle<\/a>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The number of axles and whether they are duals or singles depends on what the trailer is used for. If it&#8217;s simply moving empty containers, it requires fewer axles and wheels to support the load.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Most new skeletal trailers have air suspension as opposed to steel suspension. Air suspension is more expensive but offers a much better ride. Drum brakes are available and, for trailers that carry very heavy container loads, can be an advantage over drum brakes.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A good quality steel skeletal trailer should be able to handle in excess of 70 tonnes, but it&#8217;s important to read the specification plate provided by the manufacturer.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">UK-spec skeletal trailers are semitrailers; we don&#8217;t get the American or <a href=\"https:\/\/www.trgroupau.com\/vehicle-rentals\/\" data-type=\"link\" data-id=\"https:\/\/www.trgroupau.com\/vehicle-rentals\/\">Australian b-trains\/b-doubles<\/a>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Skeletal trailers can also have side loader mechanisms for self-loading of containers.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>A skeletal trailer is a minimal, lightweight metal trailer most commonly designed for transporting containers, although also capable of being used as a hook loader for loading a skip and a number of other specialist applications with the right attachments<span class=\"ellipsis\">&hellip;<\/span><\/p>\n<div class=\"read-more\"><a href=\"https:\/\/mocktheorytest.com\/resources\/whats-a-skeletal-trailer\/\">Read more &#8250;<\/a><\/div>\n<p><!-- end of .read-more --><\/p>\n","protected":false},"author":2,"featured_media":4466,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"footnotes":""},"categories":[2],"tags":[249],"class_list":["post-4460","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-advice","tag-trailer"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>What&#039;s a skeletal trailer? 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