{
  "schema_version": "compare-page.v2",
  "page_id": "car-seats-that-fit-three-across-in-a-back-seat",
  "url": "https://robotrunk.com/compare/want/car-seats-that-fit-three-across-in-a-back-seat",
  "title": "Car seats for three across in a back seat",
  "question": "Which car seats fit three across in a vehicle's back seat?",
  "answer": "No checked fact confirms that any seat here fits three across. Britax Poplar S: Sources disagree: Bemidjibest lists a 28 lb seat weight and 30–65 lb forward-facing range, while BabyGearLab lists 26.1 lb and the store lists 22–65 lb forward-facing; the review also says it is not a booster, can be bulky front-to-back, and does not guarantee three-across fit. Britax Highpoint: no checked fact covers three-across fit; the closest checked fact is a headrest finding in one vehicle: In a Honda Clarity with non-removable, forward-tilting headrests, a parent found the Highpoint left a gap behind the headrest like the manual’s disallowed example.",
  "kind": "car seat",
  "market": "US",
  "generated_at": "2026-10-23T13:57:17.466Z",
  "columns": [
    "Three-across note",
    "Width",
    "Vehicle fit"
  ],
  "notices": {
    "facts": "Every value in the table is a fact RoboTrunk checked, linked to the page it came from. A dash means no checked fact fills that cell.",
    "price": "Prices and stock change, so this page prints neither: each product name links to its RoboTrunk page, which shows them live."
  },
  "cited_facts": [
    {
      "ref": "p1.f8",
      "product": "Britax Highpoint",
      "field": "vehicle headrest fit",
      "value": "In a Honda Clarity with non-removable, forward-tilting headrests, a parent found the Highpoint left a gap behind the headrest like the manual’s disallowed example.",
      "stated_as": "In a Honda Clarity with non-removable, forward-tilting headrests, a parent found the Highpoint left a gap behind the headrest like the manual’s disallowed example.",
      "source_type": "review",
      "source_url": "https://www.car-seat.org/threads/high-back-booster-for-non-removable-headrest-that-causes-a-gap.230163/",
      "source_read_at": "2026-10-17T23:26:59.188Z"
    },
    {
      "ref": "p2.f4",
      "product": "Britax Poplar S",
      "field": "Vehicle fit overhang",
      "value": "Britax permits up to 3 inches of the base to extend beyond the front edge of the vehicle seat in either rear- or forward-facing mode.",
      "stated_as": "You are also permitted to have up to 3 inches (7.5 cm) of the base extending beyond the front edge of your vehicle's seat in either rear-facing or forward-facing modes",
      "source_type": "guide",
      "source_url": "https://www.britax.co.nz/root/poplar-s-onyx/5637237580.p",
      "source_read_at": "2026-10-17T23:11:00.902Z"
    },
    {
      "ref": "p2.f7",
      "product": "Britax Poplar S",
      "field": "Specs and tradeoffs",
      "value": "Sources disagree: Bemidjibest lists a 28 lb seat weight and 30–65 lb forward-facing range, while BabyGearLab lists 26.1 lb and the store lists 22–65 lb forward-facing; the review also says it is not a booster, can be bulky front-to-back, and does not guarantee three-across fit.",
      "stated_as": "This review lists the seat at 28 pounds and forward-facing at 30-65 pounds, says it is not a booster, notes it can be bulky front-to-back in some rear-facing positions, and stresses that three-across fit is not guaranteed.",
      "source_type": "blog",
      "source_url": "https://www.bemidjibest.com/britax-poplar-s-convertible-car-seat-review/",
      "source_read_at": "2026-10-17T23:11:16.583Z"
    },
    {
      "ref": "p2.f11",
      "product": "Britax Poplar S",
      "field": "Dimensions",
      "value": "The seat measures 17 inches wide, 23.5 inches high and 20.5 inches deep.",
      "stated_as": "17\" W x 23.5\" H x 20.5\" D",
      "source_type": "guide",
      "source_url": "https://top-stroll.myshopify.com/products/britax-poplar-s-convertible-car-seat",
      "source_read_at": "2026-10-17T23:09:37.186Z"
    }
  ],
  "rows": [
    {
      "rank": 1,
      "merchant": {
        "slug": "megababiesusa-com",
        "display_name": "megababiesusa.com"
      },
      "product_id": "gid://shopify/Product/8229311676670",
      "name": "Britax Poplar S",
      "url": "/products/ucp/megababiesusa-com/8229311676670",
      "why": "Sources disagree: Bemidjibest lists a 28 lb seat weight and 30–65 lb forward-facing range, while BabyGearLab lists 26.1 lb and the store lists 22–65 lb forward-facing; the review also says it is not a booster, can be bulky front-to-back, and does not guarantee three-across fit.",
      "cells": [
        {
          "column": "Three-across note",
          "fact": {
            "field": "Specs and tradeoffs",
            "value": "Sources disagree: Bemidjibest lists a 28 lb seat weight and 30–65 lb forward-facing range, while BabyGearLab lists 26.1 lb and the store lists 22–65 lb forward-facing; the review also says it is not a booster, can be bulky front-to-back, and does not guarantee three-across fit.",
            "stated_as": "This review lists the seat at 28 pounds and forward-facing at 30-65 pounds, says it is not a booster, notes it can be bulky front-to-back in some rear-facing positions, and stresses that three-across fit is not guaranteed.",
            "source_type": "blog",
            "source_url": "https://www.bemidjibest.com/britax-poplar-s-convertible-car-seat-review/",
            "source_read_at": "2026-10-17T23:11:16.583Z"
          }
        },
        {
          "column": "Width",
          "fact": {
            "field": "Dimensions",
            "value": "The seat measures 17 inches wide, 23.5 inches high and 20.5 inches deep.",
            "stated_as": "17\" W x 23.5\" H x 20.5\" D",
            "source_type": "guide",
            "source_url": "https://top-stroll.myshopify.com/products/britax-poplar-s-convertible-car-seat",
            "source_read_at": "2026-10-17T23:09:37.186Z"
          }
        },
        {
          "column": "Vehicle fit",
          "fact": {
            "field": "Vehicle fit overhang",
            "value": "Britax permits up to 3 inches of the base to extend beyond the front edge of the vehicle seat in either rear- or forward-facing mode.",
            "stated_as": "You are also permitted to have up to 3 inches (7.5 cm) of the base extending beyond the front edge of your vehicle's seat in either rear-facing or forward-facing modes",
            "source_type": "guide",
            "source_url": "https://www.britax.co.nz/root/poplar-s-onyx/5637237580.p",
            "source_read_at": "2026-10-17T23:11:00.902Z"
          }
        }
      ]
    },
    {
      "rank": 2,
      "merchant": {
        "slug": "megababiesusa-com",
        "display_name": "megababiesusa.com"
      },
      "product_id": "gid://shopify/Product/7930131906814",
      "name": "Britax Highpoint",
      "url": "/products/ucp/megababiesusa-com/7930131906814",
      "why": "In a Honda Clarity with non-removable, forward-tilting headrests, a parent found the Highpoint left a gap behind the headrest like the manual’s disallowed example.",
      "cells": [
        {
          "column": "Three-across note",
          "fact": null
        },
        {
          "column": "Width",
          "fact": null
        },
        {
          "column": "Vehicle fit",
          "fact": {
            "field": "vehicle headrest fit",
            "value": "In a Honda Clarity with non-removable, forward-tilting headrests, a parent found the Highpoint left a gap behind the headrest like the manual’s disallowed example.",
            "stated_as": "In a Honda Clarity with non-removable, forward-tilting headrests, a parent found the Highpoint left a gap behind the headrest like the manual’s disallowed example.",
            "source_type": "review",
            "source_url": "https://www.car-seat.org/threads/high-back-booster-for-non-removable-headrest-that-causes-a-gap.230163/",
            "source_read_at": "2026-10-17T23:26:59.188Z"
          }
        }
      ]
    }
  ]
}