[{"data":1,"prerenderedAt":223},["ShallowReactive",2],{"page:\u002Fguides\u002Ffm-4996-and-ul-2335":3},{"tier":4,"sections":5,"faq":124,"sources":125,"related":132,"plate":173,"form":174,"scene":173,"path":175,"crumb":176,"ruler":177,"answer":178,"title":179,"h1":179,"description":180,"type":181,"schema":182,"reviewed":184,"crumbs":185,"jsonld":192},3,[6,14,35,45,84,89,94],{"h2":7,"blocks":8},"Why it comes up",[9,12],{"t":10,"text":11},"p","Sprinklers are designed around what is stored and what it sits on. The ICC Building Safety Journal explains that a plastic pallet can change the hazard classification of a storage arrangement, and that unlisted plastic can push a designer to a more demanding sprinkler scheme. A fire listing is how a maker shows a model behaves in a test.",{"t":10,"text":13},"FreightWaves reported on a pallet pooler's plastic pallets receiving fire approval, a sign of how much the storage market cares. The owner of a rack full of pallets asks for the listing because the insurer and the fire engineer do.",{"h2":15,"blocks":16},"Two standards, two bodies",[17,33],{"t":18,"head":19,"rows":23,"caption":32},"table",[20,21,22],"Standard","What it is","What you ask for",[24,28],[25,26,27],"FM 4996","A classification standard for plastic pallets from FM Approvals","The approval for the exact model, its number and its date",[29,30,31],"UL 2335","A fire test standard for storage pallets","The test report for the exact model and the arrangement tested","",{"t":10,"text":34},"Some makers hold one, some both, some neither. A pallet that is listed to one is not thereby listed to the other. Ask which your insurer and your fire engineer accept before you choose.",{"h2":36,"blocks":37},"Rules that save a mistake",[38],{"t":39,"items":40},"ul",[41,42,43,44],"A listing belongs to one model. A lookalike from another maker, or the same maker's other model, is not covered.","Colour, recycled content and revisions can matter. Ask whether they change the listing.","The listing covers a tested arrangement, not every stack height.","This site does not claim that any pallet is fire rated. We tell you what to ask.",{"h2":46,"blocks":47},"A stack worked out",[48,50],{"t":10,"text":49},"Take a stackable rated 15,000 lb static. The bottom pallet carries the pallets above it, so with each loaded pallet weighing 2,635 lb it can hold 5 above, a stack of 6. With 6,677 lb per pallet it can hold 2 above. This is a ceiling on a flat floor for a still stack, not a promise for a stack that moves or waits.",{"t":18,"head":51,"rows":56,"caption":83},[52,53,54,55],"Loaded pallet, lb","Pallets above the bottom","Stack height","Load on the bottom pallet, lb",[57,62,66,69,73,76,80],[58,59,60,61],"2,635","5","6","13,175",[63,64,59,65],"3,142","4","12,568",[67,64,59,68],"3,649","14,596",[70,71,64,72],"4,156","3","12,468",[74,71,64,75],"4,663","13,989",[77,78,71,79],"5,670","2","11,340",[81,78,71,82],"6,677","13,354","Example for an assumed 15,000 lb static rating; use the maker's figure for the exact model.",{"h2":85,"blocks":86},"What the document does not tell you",[87],{"t":10,"text":88},"A listing says how a pallet behaved in one test arrangement. It does not say the pallet is safe in every building, and it says nothing about strength, nesting or food contact. Treat it as one input to the sprinkler design and keep it separate from the ratings that govern loads.",{"h2":90,"blocks":91},"A note on this page",[92],{"t":10,"text":93},"Two standards, two testing bodies, two documents: a buyer asked for one will sometimes be handed the other. Check the number printed at the top of the paper before it is filed, and confirm the pallet model named in it matches the moulded mark on the deck.",{"h2":95,"blocks":96},"Words on this page",[97],{"t":98,"rows":99},"dl",[100,103,106,109,112,115,118,121],[101,102],"GMA pallet","The 48 by 40 inch North American standard, named for the Grocery Manufacturers Association that popularised it.",[104,105],"HDPE","High-density polyethylene, a tough resin used in many plastic pallets, valued for strength against its weight.",[107,108],"FM Approvals","A testing and certification body whose classifications insurers and sprinkler designers read.",[110,111],"Nest ratio","How many empty pallets fit in the height of one: pallet height divided by nest increment.",[113,114],"Cube utilisation","How well loaded freight fills the volume of a trailer or container. Taller or wider-than-floor pallets waste cube.",[116,117],"Nest increment","The extra height each additional empty pallet adds to a nested stack, measured in inches. A small increment means a short stack.",[119,120],"Closed loop","A route where pallets return to the sender after delivery, so the empty trip is a standing cost.",[122,123],"Pallet pooling","A rental model where a company owns the pallets and moves them between customers, instead of each customer buying its own.",[],[126,129],{"label":127,"url":128},"ICC Building Safety Journal, cellulose or plastic","https:\u002F\u002Fwww.iccsafe.org\u002Fbuilding-safety-journal\u002Fbsj-technical\u002Fcellulose-or-plastic-its-not-just-about-shopping-bags\u002F",{"label":130,"url":131},"FreightWaves, iGPS fire approval","https:\u002F\u002Fwww.freightwaves.com\u002F?p=177229",[133,137,141,145,149,153,157,161,165,169],{"path":134,"title":135,"blurb":136},"\u002Ffire-rated","Fire rated","FM 4996 and UL 2335 listing for plastic pallets: what the tests are and why an unlisted pallet can change sprinkler design.",{"path":138,"title":139,"blurb":140},"\u002Ffire-rated\u002Ffm-4996-explained","FM 4996 Plastic Pallet Test Explained","What the FM 4996 pallet test measures, how a pass is judged and what a listed label tells a facility manager.",{"path":142,"title":143,"blurb":144},"\u002Ffire-rated\u002Ful-2335-explained","UL 2335 Pallet Fire Test Explained","UL 2335 has an idle pallet test and a commodity storage test. What each shows and when a listing matters.",{"path":146,"title":147,"blurb":148},"\u002Fguides","Plastic Pallet Guides","Guides on nest ratio, the three load ratings, ISPM 15, fire listing, creep and cold, written from maker spec sheets.",{"path":150,"title":151,"blurb":152},"\u002Fguides\u002Fstatic-dynamic-and-racking-load","Static, dynamic and racking","Static is the load a pallet holds at rest, dynamic the load it holds on the move, racking the load it holds across an open gap. They are three tests, and the.",{"path":154,"title":155,"blurb":156},"\u002Fguides\u002Fispm-15-and-plastic-pallets","Guide: ISPM 15 and plastic pallets","ISPM 15 regulates wood packaging material in international trade. A plastic pallet is not wood, so it needs no heat-treatment or fumigation mark.",{"path":158,"title":159,"blurb":160},"\u002Findustries","Industries","Which pallet style food and beverage, pharma, automotive, chemical, export and warehouse buyers ask about.",{"path":162,"title":163,"blurb":164},"\u002Fheavy-duty","Heavy duty","Heavy duty plastic pallets sorted by static, dynamic and racking load, with the style trade-off for each band.",{"path":166,"title":167,"blurb":168},"\u002Fnest-calculator","Nest calculator","Pick a footprint and style, enter stacks, and see how many nestable pallets fit an empty 53 ft trailer against loaded ones.",{"path":170,"title":171,"blurb":172},"\u002Frequest","Request a Load of Plastic Pallets","Send the footprint, style and quantity of plastic pallets you need, and what the pallet will do, to start a request.",null,false,"\u002Fguides\u002Ffm-4996-and-ul-2335","FM 4996 and UL 2335",8,"FM 4996 and UL 2335 are the two fire standards that come up for plastic pallets. Both are tests a named model passes or fails, and a listing never transfers to another model.","Guide: FM 4996 and UL 2335","FM 4996 and UL 2335 are the two fire standards that come up for plastic pallets. Both are tests a named model passes or fails, and a listing never transfers.","guide",[183],"Article","November 12, 2026",[186,189,191],{"path":187,"name":188},"\u002F","Home",{"path":146,"name":190},"Guides",{"path":175,"name":176},{"@context":193,"@graph":194},"https:\u002F\u002Fschema.org",[195,205,213],{"@type":183,"@id":196,"name":179,"url":197,"description":180,"inLanguage":198,"isPartOf":199,"publisher":201,"headline":179,"dateModified":203,"author":204},"https:\u002F\u002Fnestableplasticpallets.com\u002Fguides\u002Ffm-4996-and-ul-2335#article","https:\u002F\u002Fnestableplasticpallets.com\u002Fguides\u002Ffm-4996-and-ul-2335","en-US",{"@id":200},"https:\u002F\u002Fnestableplasticpallets.com\u002F#website",{"@id":202},"https:\u002F\u002Fnestableplasticpallets.com\u002F#org","2026-11-12",{"@id":202},{"@type":206,"@id":202,"name":207,"url":208,"email":209,"areaServed":210},"Organization","Nestable Plastic Pallets","https:\u002F\u002Fnestableplasticpallets.com\u002F","info@nestableplasticpallets.com",{"@type":211,"name":212},"Country","United States",{"@type":214,"itemListElement":215},"BreadcrumbList",[216,219,222],{"@type":217,"position":218,"name":188,"item":208},"ListItem",1,{"@type":217,"position":220,"name":190,"item":221},2,"https:\u002F\u002Fnestableplasticpallets.com\u002Fguides",{"@type":217,"position":4,"name":176,"item":197},1794519998210]