{"id":146788,"date":"2026-10-26T01:52:05","date_gmt":"2026-10-26T01:52:05","guid":{"rendered":"https:\/\/www.hiseadock.com\/?p=146788"},"modified":"2026-10-26T01:52:06","modified_gmt":"2026-10-26T01:52:06","slug":"how-much-weight-can-a-float-support-buoyancy-vs-allowable-working-load","status":"publish","type":"post","link":"https:\/\/www.hiseadock.com\/es\/how-much-weight-can-a-float-support-buoyancy-vs-allowable-working-load\/","title":{"rendered":"\u00bfCu\u00e1nto peso puede soportar un flotador? Flotabilidad frente a carga de trabajo admisible"},"content":{"rendered":"<style>.hisea-guide04{font-size:17px;line-height:1.85;color:#183b45}.hisea-guide04 h2{font-size:27px;line-height:1.4;margin-top:1.8em}.hisea-guide04 h3{font-size:20px;line-height:1.5}.hisea-guide04 p{margin:14px 0}.hisea-guide04 img{display:block;width:100%;height:auto;max-height:570px;object-fit:contain}.hisea-guide04 figure{margin:28px 0}.hisea-guide04 figcaption,.hisea-guide04 .small,.hisea-guide04 .references{font-size:14px;color:#526b75}.hisea-guide04 .answer,.hisea-guide04 .equation{background:#edf6f5;padding:22px 26px;margin:24px 0}.hisea-guide04 .answer{border-left:4px solid #0c7279}.hisea-guide04 .math-grid,.hisea-guide04 .product-grid,.hisea-guide04 .case-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px}.hisea-guide04 .math-card{padding:22px;border:1px solid #d6e4e5}.hisea-guide04 .big{font-size:30px;font-weight:700;color:#0c7279}.hisea-guide04 .label{font-weight:700}.hisea-guide04 .product-grid img{height:270px}.hisea-guide04 .case-grid img{height:310px}.hisea-guide04 .terms{width:100%;border-collapse:collapse}.hisea-guide04 .terms th,.hisea-guide04 .terms td{padding:13px;border:1px solid #d6e4e5;text-align:left;vertical-align:top}.hisea-guide04 .terms th{background:#edf6f5}.hisea-guide04 .pullquote{border-left:3px solid #0c7279;padding-left:22px;font-size:23px;color:#0c7279}.hisea-guide04 .closing{background:#153f49;color:white;padding:24px 28px;margin-top:32px}.hisea-guide04 .closing h2{margin-top:0;color:white}.hisea-guide04 .closing a{color:#aee6e5}.hisea-guide04 .references{margin-top:35px;padding-top:20px;border-top:1px solid #d6e4e5}.hisea-guide04 code{white-space:normal;font-size:20px}.hisea-guide04 .equation{overflow-wrap:anywhere}@media(max-width:700px){.hisea-guide04 .math-grid,.hisea-guide04 .product-grid,.hisea-guide04 .case-grid{grid-template-columns:1fr}.hisea-guide04 h2{font-size:24px}.hisea-guide04 .terms th,.hisea-guide04 .terms td{padding:9px;font-size:14px}}<\/style>\n<div class=\"hisea-guide04\">\n<p class=\"deck\">Read the units. Check the waterline. A useful capacity figure belongs to a defined model and operating condition.<\/p>\n<aside class=\"answer\"><strong>How much weight can one HDPE float carry?<\/strong><\/p>\n<p>Hisea Dock&#8217;s published standard single float measures 500\u00d7500\u00d7400 mm, weighs 7 kg and lists buoyancy at 350 kg\/m\u00b2. Its nominal footprint is 0.25 m\u00b2, giving 87.5 kg per unit when converting the same area-based figure. <strong>This conversion does not establish an allowable working load or a people limit.<\/strong><sup><a href=\"#ref1\">[1]<\/a><\/sup><\/p>\n<\/aside>\n<figure class=\"hero\"><img decoding=\"async\" src=\"https:\/\/www.hiseadock.com\/wp-content\/uploads\/2026\/10\/06-harbour-floating-walkway-scaled.jpg\" alt=\"Grey modular floating walkway leading to a harbour shore\"><figcaption>From float to walkway: connect the load assessment to the complete layout and working waterline.<\/figcaption><\/figure>\n<h2>1. What do \u201c7 kg\u201d and \u201c350 kg\/m\u00b2\u201d mean?<\/h2>\n<p><strong>7 kg is the float&#8217;s own mass. 350 kg\/m\u00b2 is the buoyancy figure listed for its area.<\/strong> They describe different things. There is no fixed rule linking an extra kilogram of plastic to a particular increase in carrying capacity.<\/p>\n<div class=\"math-grid\">\n<div class=\"math-card\">\n<div class=\"label\">Standard single \u00b7 published figure<\/div>\n<p>500\u00d7500 mm = 0.25 m\u00b2<\/p>\n<div class=\"big\">350 \u00d7 0.25 = 87.5<\/div>\n<p>kg per unit, converting the same buoyancy figure<\/p>\n<\/div>\n<div class=\"math-card\">\n<div class=\"label\">450 kg\/m\u00b2 \u00b7 conditional example<\/div>\n<p>If the specified model also covers 0.25 m\u00b2<\/p>\n<div class=\"big\">450 \u00d7 0.25 = 112.5<\/div>\n<p>kg per unit; the figure&#8217;s definition still matters<\/p>\n<\/div>\n<\/div>\n<p>Four standard 500\u00d7500 mm plan modules nominally cover 1 m\u00b2. Consequently, 350 kg\/m\u00b2 does not mean 350 kg per individual unit; 450 kg\/m\u00b2 does not mean 450 kg per unit either. The 450 figure here illustrates the conversion only. The relevant model documents must establish its applicability.<\/p>\n<h2>2. Buoyancy comes from the water actually displaced<\/h2>\n<p>Archimedes&#8217; principle relates buoyancy to the weight of displaced water. <strong>In fresh water, displacing approximately 1 m\u00b3 supports approximately 1000 kg of total mass.<\/strong> That total includes the floats, fixed installations, people and movable equipment.<sup><a href=\"#ref5\">[5]<\/a><\/sup><\/p>\n<div class=\"equation\"><code>F<sub>B<\/sub> = \u03c1 \u00d7 g \u00d7 V<sub>displaced<\/sub><\/code><\/p>\n<p class=\"small\">F<sub>B<\/sub> is force in newtons; \u03c1 is water density; g is gravitational acceleration; V is the actual displaced volume below the current waterline. Commercial buoyancy figures in kg usually express a supported-mass equivalent rather than force in newtons.<\/p>\n<\/div>\n<p>A taller float can generally provide more displacement space for the same footprint. However, rounded corners, recesses and connection features affect the external shape. <strong>Overall length \u00d7 width \u00d7 height is not the actual displacement, and full-submersion capacity is not an everyday working-load rating.<\/strong><\/p>\n<div class=\"product-grid\">\n<figure class=\"\"><img decoding=\"async\" src=\"https:\/\/www.hiseadock.com\/wp-content\/uploads\/2026\/10\/01-curved-single-floats.png\" alt=\"Assembly of blue curved single floats\"><figcaption>Curved single floats shown as an assembly. Match the model, mass and buoyancy to its drawings.<\/figcaption><\/figure>\n<figure class=\"\"><img decoding=\"async\" src=\"https:\/\/www.hiseadock.com\/wp-content\/uploads\/2026\/10\/02-square-quad-float.png\" alt=\"Grey square quad float\"><figcaption>A square quad float. Four surface panels do not establish equivalence to four standard single floats.<\/figcaption><\/figure>\n<\/div>\n<h2>3. Floating is only one part of the load assessment<\/h2>\n<table class=\"terms\">\n<thead>\n<tr>\n<th>Term<\/th>\n<th>Meaning<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Gross buoyancy<\/td>\n<td>Total support at a specified waterline, including support for the float&#8217;s own mass.<\/td>\n<\/tr>\n<tr>\n<td>Net load figure<\/td>\n<td>Its deductions must be stated. Do not subtract float mass again if it has already been deducted.<\/td>\n<\/tr>\n<tr>\n<td>Allowable working load<\/td>\n<td>An operating limit for the agreed layout, freeboard and conditions, checked against structure, connections and stability.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><strong>Freeboard is the vertical distance from the water to the walking surface under the stated condition.<\/strong> Added weight generally increases draft and reduces freeboard. People gathering along one edge can also cause local inclination. Where weight is placed matters as well as how much is added.<sup><a href=\"#ref6\">[6]<\/a><\/sup><\/p>\n<div class=\"equation\"><strong>Still-water load budget at the selected working waterline (kg)<\/strong><\/p>\n<p>\u2248 water density \u00d7 actual displaced volume \u2212 float mass \u2212 fixed-installation mass<\/p>\n<p class=\"small\">This checks buoyancy balance only. It does not determine the final allowable working load.<\/p>\n<\/div>\n<p>As an <strong>illustrative calculation only<\/strong>, suppose a 1 m\u00b2 assembly has a displacement of 0.30 m\u00b3 at the required freeboard, established from its actual shape or a displacement test. With 28 kg of floats and 22 kg of fixed fittings and installations, its still-water load budget is approximately <strong>1000\u00d70.30\u221228\u221222 = 250 kg<\/strong>. This is not a Hisea Dock model rating. Connections, local loads, uneven loading and site conditions still require assessment.<\/p>\n<figure class=\"\"><img decoding=\"async\" src=\"https:\/\/www.hiseadock.com\/wp-content\/uploads\/2026\/10\/03-fishing-platform-scaled.jpg\" alt=\"People with fishing equipment on a blue and orange modular platform\"><figcaption>Fishing use introduces people, equipment and edge loading. A use photograph is not a load test.<\/figcaption><\/figure>\n<h2>4. Match the assessment to the use<\/h2>\n<p><strong>Fishing platforms:<\/strong> include tackle boxes, seats and equipment, as well as people gathering at the edges. <strong>Shaded platforms:<\/strong> include the canopy, seating and railings; a canopy also introduces wind loads. <strong>Floating walkways:<\/strong> consider uneven pedestrian loading, stopping areas, shore transitions, waves and changing water levels.<\/p>\n<div class=\"case-grid\">\n<figure class=\"\"><img decoding=\"async\" src=\"https:\/\/www.hiseadock.com\/wp-content\/uploads\/2026\/10\/04-shaded-waterpark-platform.jpg\" alt=\"Canopy and reclining chairs on a modular floating platform\"><figcaption>Include the canopy and railings in fixed mass, and account for movable seating and its distribution in service loads; assess wind action on the canopy.<\/figcaption><\/figure>\n<figure class=\"\"><img decoding=\"async\" src=\"https:\/\/www.hiseadock.com\/wp-content\/uploads\/2026\/10\/05-grey-floating-walkway.jpg\" alt=\"Grey modular floating walkway with white railings\"><figcaption>Assess pedestrian distribution, railing mass and site conditions with the walkway layout.<\/figcaption><\/figure>\n<\/div>\n<p class=\"pullquote\">The same float can have different operating limits in different assembled layouts.<\/p>\n<figure class=\"\"><img decoding=\"async\" src=\"https:\/\/www.hiseadock.com\/wp-content\/uploads\/2026\/10\/07-large-modular-platform.jpg\" alt=\"Large blue modular floating platform on open water\"><figcaption>A larger area changes total quantities and gathering patterns. Local loading cannot be assessed by averaging across the entire platform.<\/figcaption><\/figure>\n<h2>5. Put four items in the purchasing documents<\/h2>\n<p><strong>\u2460 Model and dimensions:<\/strong> identify which product the mass describes and whether a photograph shows a single unit, an assembly or a quad float.<br \/><strong>\u2461 Definition:<\/strong> kg per unit or kg\/m\u00b2; gross buoyancy or a net figure with stated deductions.<br \/><strong>\u2462 Working condition:<\/strong> water density, loading method, draft and freeboard.<br \/><strong>\u2463 Project limits:<\/strong> fixed installations, load distribution, connection and anchoring conditions, and the final allowable working load.<\/p>\n<h2>Common questions<\/h2>\n<h3>Can I convert 350 kg\/m\u00b2 directly into a people limit?<\/h3>\n<p>No. That figure alone does not establish the project&#8217;s allowable working load, accessory mass, uneven-loading conditions or freeboard requirements. The operating people limit must follow the project assessment.<\/p>\n<h3>Does an 8 kg float always carry more than a 7 kg float?<\/h3>\n<p>No. Compare the actual models, displacement shapes, operating waterlines and finished-product performance. A difference between 350 and 450 kg\/m\u00b2 cannot be attributed simply to one extra kilogram of resin.<\/p>\n<h3>Can a 6 kg float use the same capacity figure?<\/h3>\n<p>Identify the model first. Mass alone does not establish dimensions, displacement or a rating. A different model&#8217;s figure cannot simply be transferred.<\/p>\n<div class=\"closing\">\n<h2>Connect the capacity figure to your project<\/h2>\n<p>Hisea Dock uses imported high molecular weight high-density polyethylene (HMW-HDPE) for its floats. Review the material, finished construction, buoyancy information and intended use together so that each specification relates to a clear condition.<\/p>\n<p>Planning a floating bridge or platform? Send the proposed dimensions, intended use, fixed-installation details and site photographs to discuss the model and layout.<\/p>\n<p><a href=\"https:\/\/www.hiseadock.com\/\">www.hiseadock.com<\/a> \u00b7 WhatsApp: <a href=\"https:\/\/wa.me\/8617369861101\">+86 17369861101<\/a><\/p>\n<\/div>\n<section class=\"references\">\n<h2>Sources and calculation basis<\/h2>\n<p>Model facts refer to Hisea Dock public documents. Area conversions and arithmetic are calculated here. Photographs and imported-resin information were supplied by the company. The published 350 kg\/m\u00b2 buoyancy entry does not, by itself, define deductions, test waterline or a safety factor.<\/p>\n<ol>\n<li id=\"ref1\"><a href=\"https:\/\/www.hiseadock.com\/product-item\/single-float\/\">Hisea Dock \u00b7 Single Float<\/a><\/li>\n<li id=\"ref2\"><a href=\"https:\/\/www.hiseadock.com\/catalog\/catalog.pdf\">Hisea Dock \u00b7 Product catalog<\/a><\/li>\n<li id=\"ref3\"><a href=\"https:\/\/www.hiseadock.com\/product-item\/single-float-curved-type\/\">Hisea Dock \u00b7 Curved Single Float<\/a><\/li>\n<li id=\"ref4\"><a href=\"https:\/\/www.hiseadock.com\/product-item\/square-quad-plastic-dock-floats\/\">Hisea Dock \u00b7 Square Quad Float<\/a><\/li>\n<li id=\"ref5\"><a href=\"https:\/\/www.grc.nasa.gov\/www\/k-12\/WindTunnel\/Activities\/buoy_Archimedes.html\">NASA \u00b7 Archimedes principle<\/a><\/li>\n<li id=\"ref6\"><a href=\"https:\/\/www.wbdg.org\/FFC\/DOD\/UFC\/ufc_4_152_07_2009_c1.pdf\">UFC 4-152-07 \u00b7 Small Craft Berthing Facilities, pp. 32\u201333 (design principles)<\/a><\/li>\n<\/ol>\n<\/section>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>\u00bfQu\u00e9 significa 350 kg\/m\u00b2 para un flotador de HDPE? Conoce las conversiones por unidad, la flotabilidad, el francobordo y los c\u00e1lculos que determinan la carga de trabajo admisible.<\/p>","protected":false},"author":1,"featured_media":146797,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_seopress_robots_primary_cat":"none","_seopress_titles_title":"Float Load Capacity: Buoyancy vs Working Load | Hisea Dock","_seopress_titles_desc":"Learn how to calculate float load capacity, convert kg\/m\u00b2 to per-unit figures, and distinguish buoyancy from allowable working load, draft and freeboard.","_seopress_robots_index":"","footnotes":""},"categories":[53,37],"tags":[],"class_list":["post-146788","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","category-buying-guides"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.hiseadock.com\/es\/wp-json\/wp\/v2\/posts\/146788","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.hiseadock.com\/es\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.hiseadock.com\/es\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.hiseadock.com\/es\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.hiseadock.com\/es\/wp-json\/wp\/v2\/comments?post=146788"}],"version-history":[{"count":1,"href":"https:\/\/www.hiseadock.com\/es\/wp-json\/wp\/v2\/posts\/146788\/revisions"}],"predecessor-version":[{"id":146800,"href":"https:\/\/www.hiseadock.com\/es\/wp-json\/wp\/v2\/posts\/146788\/revisions\/146800"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.hiseadock.com\/es\/wp-json\/wp\/v2\/media\/146797"}],"wp:attachment":[{"href":"https:\/\/www.hiseadock.com\/es\/wp-json\/wp\/v2\/media?parent=146788"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.hiseadock.com\/es\/wp-json\/wp\/v2\/categories?post=146788"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.hiseadock.com\/es\/wp-json\/wp\/v2\/tags?post=146788"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}