{
  "id": "trailer-decks",
  "title": "Flatbed and step deck trailer dimensions",
  "description": "Deck length, width, deck height and the freight height that keeps a load under 13 ft 6 in overall, for 48 ft flatbeds and 53 ft step decks.",
  "license": "https://creativecommons.org/licenses/by/4.0/",
  "page": "https://palletdimensions.com/trailer-dimensions/",
  "columns": [
    {
      "key": "deck",
      "label": "Deck length"
    },
    {
      "key": "width",
      "label": "Width",
      "unit": "in",
      "numeric": true
    },
    {
      "key": "deckHeight",
      "label": "Deck height",
      "unit": "in"
    },
    {
      "key": "freightHeight",
      "label": "Freight height"
    },
    {
      "key": "payload",
      "label": "Typical payload",
      "unit": "lb",
      "numeric": true
    }
  ],
  "rows": [
    {
      "id": "flatbed-48",
      "name": "48 ft flatbed",
      "deck": "48 ft",
      "widthIn": 102,
      "deckHeight": "58 to 60",
      "freightHeight": "8 ft 6 in",
      "sources": [
        "utility-flatbed-specs",
        "fontaine-flat-48",
        "chr-flatbed-guide",
        "freightsidekick-trailers"
      ],
      "verified": true
    },
    {
      "id": "step-deck-53",
      "name": "53 ft step deck",
      "deck": "10 to 12 ft upper, 37 to 42 ft lower",
      "widthIn": 102,
      "deckHeight": "about 60 upper, 36 to 42 lower",
      "freightHeight": "about 10 ft on the lower deck",
      "payload": "43,000–47,000",
      "sources": [
        "fontaine-drop-53",
        "fontaine-infinity-drop-sheet",
        "fontaine-velocity-drop-sheet",
        "greatdane-step-buildsheet",
        "utility-4000ae",
        "chr-flatbed-guide",
        "freightsidekick-trailers",
        "ryan-single-drop"
      ],
      "verified": true,
      "note": "Makers’ 53 ft sheets give a 40 in loaded lower deck; brokers quote 36 to 42 in across fleets."
    }
  ],
  "sources": [
    {
      "id": "utility-flatbed-specs",
      "title": "Flatbed specifications",
      "publisher": "Utility Trailer",
      "url": "https://www.utilitytrailer.com/flatbeds/specifications",
      "kind": "manufacturer",
      "official": true,
      "checked": "2026-11-14"
    },
    {
      "id": "fontaine-flat-48",
      "title": "Infinity flatbed 48 ft",
      "publisher": "Fontaine",
      "url": "https://fontainetrailer.com/trailers/infinity-flat-48-wide-spread-air/",
      "kind": "manufacturer",
      "official": true,
      "checked": "2026-11-14"
    },
    {
      "id": "chr-flatbed-guide",
      "title": "Flatbed equipment guide",
      "publisher": "C.H. Robinson",
      "url": "https://www.chrobinson.com/resources/resource-center/guides/flatbed-equipment-guide/",
      "kind": "logistics-provider",
      "official": false,
      "checked": "2026-11-14"
    },
    {
      "id": "freightsidekick-trailers",
      "title": "Trailer guide",
      "publisher": "Freight Sidekick",
      "url": "https://freightsidekick.com/resources/trailer-guide",
      "kind": "logistics-provider",
      "official": false,
      "checked": "2026-11-14"
    },
    {
      "id": "fontaine-drop-53",
      "title": "Infinity drop deck 53 ft",
      "publisher": "Fontaine",
      "url": "https://fontainetrailer.com/trailers/infinity-drop-deck-53-wide-spread-air/",
      "kind": "manufacturer",
      "official": true,
      "checked": "2026-11-14"
    },
    {
      "id": "fontaine-infinity-drop-sheet",
      "title": "Infinity drop deck 53 ft spec sheet",
      "publisher": "Fontaine (sheet hosted by Hale Trailer)",
      "url": "https://trailerimages.haletrailer.com/inv/docs/series/033665-033679-1.pdf",
      "kind": "manufacturer",
      "official": true,
      "checked": "2026-11-14"
    },
    {
      "id": "fontaine-velocity-drop-sheet",
      "title": "Velocity drop deck 53 ft spec sheet",
      "publisher": "Fontaine (sheet hosted by Hale Trailer)",
      "url": "https://trailerimages.haletrailer.com/inv/docs/series/036508-036513-1.pdf",
      "kind": "manufacturer",
      "official": true,
      "checked": "2026-11-14"
    },
    {
      "id": "greatdane-step-buildsheet",
      "title": "Step deck build sheet FLD-0026-00053",
      "publisher": "Great Dane (sheet hosted by Maxim)",
      "url": "https://www.maximinc.com/media/RH611858%20to%20RH611863%20Combo%20Step%20Triaxle%20NP.pdf",
      "kind": "manufacturer",
      "official": true,
      "checked": "2026-11-14"
    },
    {
      "id": "utility-4000ae",
      "title": "4000AE drop deck",
      "publisher": "Utility Trailer",
      "url": "https://www.utilitytrailer.com/trailer/4000ae-drop-deck/",
      "kind": "manufacturer",
      "official": true,
      "checked": "2026-11-14",
      "note": "Its 59⅝ in upper deck height is for a 48 ft model."
    },
    {
      "id": "ryan-single-drop",
      "title": "Single drop dimensions",
      "publisher": "Ryan Transportation",
      "url": "https://ryantrans.com/page/single-drop-dimensions",
      "kind": "logistics-provider",
      "official": false,
      "checked": "2026-11-14"
    }
  ]
}