{
  "schema_version": "compare-page.v2",
  "page_id": "narrow-booster-seats-for-a-small-back-seat",
  "url": "https://robotrunk.com/compare/want/narrow-booster-seats-for-a-small-back-seat",
  "title": "Narrow backless booster seats for a small back seat",
  "question": "Which backless booster seats are narrow enough to fit a small back seat?",
  "answer": "Britax UpNGo Click Backless Booster Car Seat: The seat is 17.1 inches wide and is designed to fit three across in most vehicles, but Britax will not guarantee 3-across fitment in every vehicle. The maker lists rigid LATCH click-in, a 17.1-inch slim SpaceSaver design, the PosturePlus contoured seat, a carry weight under 5 lb, two dishwasher-safe cup holders, a washer-and-dryer-friendly cover, naturally flame-retardant fabrics with no added FR chemicals, colour-coded belt guides and a shoulder belt guide.\nBritax UpNGo: Assembled dimensions are 15.5 inches long, 17.1 inches wide and 9 inches high. The seat is 17.1 inches wide (SpaceSaver design), intended to leave room for siblings or carpoolers.\nMaxi-Cosi RodiFix Booster Car Seat: Measured by the reviewers: 13.5 lb, 18.5 in. wide at the back in the narrow setting and 21 in. in the widest, 17 in. across the front of the base, 12 in. at the lap belt path, 10 in. inside at the hips and 16 in. at the knees, 12 in. seat pan depth, and shoulder belt guide heights from 14 in. to 22 in.",
  "kind": "booster car seat",
  "market": "US",
  "generated_at": "2026-10-25T01:55:25.037Z",
  "columns": [
    "Width",
    "Three across",
    "Child limits"
  ],
  "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.f1",
      "product": "Britax UpNGo Click Backless Booster Car Seat",
      "field": "weight and height limits",
      "value": "The UpNGo Click is designed for children from 40 to 120 lb and 46 to 63 inches tall.",
      "stated_as": "Designed for children from 40-120 lbs and 46”-63\"",
      "source_type": "listing",
      "source_url": "https://strolleria.myshopify.com/products.json",
      "source_read_at": "2026-10-12T20:06:05.806Z"
    },
    {
      "ref": "p1.f9",
      "product": "Britax UpNGo Click Backless Booster Car Seat",
      "field": "seat width and 3-across",
      "value": "The seat is 17.1 inches wide and is designed to fit three across in most vehicles, but Britax will not guarantee 3-across fitment in every vehicle.",
      "stated_as": "This slim booster seat is designed to fit 3 across in most vehicles without compromising safety or comfort. *Britax cannot guarantee 3-across fitment in all vehicles.",
      "source_type": "listing",
      "source_url": "https://strolleria.myshopify.com/products.json",
      "source_read_at": "2026-10-12T20:06:05.806Z"
    },
    {
      "ref": "p1.f10",
      "product": "Britax UpNGo Click Backless Booster Car Seat",
      "field": "seat features (maker)",
      "value": "The maker lists rigid LATCH click-in, a 17.1-inch slim SpaceSaver design, the PosturePlus contoured seat, a carry weight under 5 lb, two dishwasher-safe cup holders, a washer-and-dryer-friendly cover, naturally flame-retardant fabrics with no added FR chemicals, colour-coded belt guides and a shoulder belt guide.",
      "stated_as": "Click On, Quick Off\nSteel rigid LATCH connectors click in with ease and release in seconds.",
      "source_type": "guide",
      "source_url": "https://us.britax.com/shop/car-seats/upngo-click-backless-belt-positioning-booster-seat",
      "source_read_at": "2026-10-13T01:39:17.640Z"
    },
    {
      "ref": "p2.f2",
      "product": "Britax UpNGo",
      "field": "dimensions",
      "value": "Assembled dimensions are 15.5 inches long, 17.1 inches wide and 9 inches high.",
      "stated_as": "Product Dimensions: 15.5\" L × 17.1\" W × 9\" H",
      "source_type": "guide",
      "source_url": "https://strolleria.myshopify.com/products/britax-upngo-backless-booster-car-seat-raven-black",
      "source_read_at": "2026-10-13T01:06:58.930Z"
    },
    {
      "ref": "p2.f3",
      "product": "Britax UpNGo",
      "field": "child weight and height limits",
      "value": "The maker designs this booster for children weighing 40 to 120 lbs and measuring 46 to 63 inches tall.",
      "stated_as": "Designed for children from 40-120 lbs and 46”-63\"",
      "source_type": "guide",
      "source_url": "https://us.britax.com/shop/car-seats/upngo-backless-belt-positioning-booster-seat",
      "source_read_at": "2026-10-13T01:07:00.569Z"
    },
    {
      "ref": "p2.f9",
      "product": "Britax UpNGo",
      "field": "seat width and three-across fit",
      "value": "The seat is 17.1 inches wide (SpaceSaver design), intended to leave room for siblings or carpoolers.",
      "stated_as": "17.1” seat leaves plenty of room for siblings & carpoolers without compromising trusted Britax safety and premium comfort.",
      "source_type": "guide",
      "source_url": "https://us.britax.com/shop/car-seats/upngo-backless-belt-positioning-booster-seat",
      "source_read_at": "2026-10-13T01:07:00.569Z"
    },
    {
      "ref": "p3.f1",
      "product": "Maxi-Cosi RodiFix Booster Car Seat",
      "field": "child weight and height range",
      "value": "The store's listing describes a belt-positioning booster for children from 40 lb to 120 lb and 40 in. to 57 in. tall, while other sources give a minimum height of 43 in. (NHTSA and Consumer Reports say 43-57 in., and the manual's use section also says 43-57 in.), so the sources disagree on the minimum height.",
      "stated_as": "Belt-positioning booster 40-120 lbs & 40\" - 57\" in Height.",
      "source_type": "listing",
      "source_url": "https://top-stroll.myshopify.com/products.json",
      "source_read_at": "2026-10-18T19:37:33.814Z"
    },
    {
      "ref": "p3.f7",
      "product": "Maxi-Cosi RodiFix Booster Car Seat",
      "field": "measurements",
      "value": "Measured by the reviewers: 13.5 lb, 18.5 in. wide at the back in the narrow setting and 21 in. in the widest, 17 in. across the front of the base, 12 in. at the lap belt path, 10 in. inside at the hips and 16 in. at the knees, 12 in. seat pan depth, and shoulder belt guide heights from 14 in. to 22 in.",
      "stated_as": "Measured by the reviewers: 13.5 lb, 18.5 in. wide at the back in the narrow setting and 21 in. in the widest, 17 in. across the front of the base, 12 in. at the lap belt path, 10 in. inside at the hips and 16 in. at the knees, 12 in. seat pan depth, and shoulder belt guide heights from 14 in. to 22 in.",
      "source_type": "review",
      "source_url": "https://csftl.org/maxi-cosi-rodifix-review-2/",
      "source_read_at": "2026-10-19T15:38:00.206Z"
    }
  ],
  "rows": [
    {
      "rank": 1,
      "merchant": {
        "slug": "strolleria-com",
        "display_name": "strolleria.com"
      },
      "product_id": "gid://shopify/Product/8008999993418",
      "name": "Britax UpNGo Click Backless Booster Car Seat",
      "url": "/products/ucp/strolleria-com/8008999993418",
      "why": "The seat is 17.1 inches wide and is designed to fit three across in most vehicles, but Britax will not guarantee 3-across fitment in every vehicle.",
      "cells": [
        {
          "column": "Width",
          "fact": {
            "field": "seat features (maker)",
            "value": "The maker lists rigid LATCH click-in, a 17.1-inch slim SpaceSaver design, the PosturePlus contoured seat, a carry weight under 5 lb, two dishwasher-safe cup holders, a washer-and-dryer-friendly cover, naturally flame-retardant fabrics with no added FR chemicals, colour-coded belt guides and a shoulder belt guide.",
            "stated_as": "Click On, Quick Off\nSteel rigid LATCH connectors click in with ease and release in seconds.",
            "source_type": "guide",
            "source_url": "https://us.britax.com/shop/car-seats/upngo-click-backless-belt-positioning-booster-seat",
            "source_read_at": "2026-10-13T01:39:17.640Z"
          }
        },
        {
          "column": "Three across",
          "fact": {
            "field": "seat width and 3-across",
            "value": "The seat is 17.1 inches wide and is designed to fit three across in most vehicles, but Britax will not guarantee 3-across fitment in every vehicle.",
            "stated_as": "This slim booster seat is designed to fit 3 across in most vehicles without compromising safety or comfort. *Britax cannot guarantee 3-across fitment in all vehicles.",
            "source_type": "listing",
            "source_url": "https://strolleria.myshopify.com/products.json",
            "source_read_at": "2026-10-12T20:06:05.806Z"
          }
        },
        {
          "column": "Child limits",
          "fact": {
            "field": "weight and height limits",
            "value": "The UpNGo Click is designed for children from 40 to 120 lb and 46 to 63 inches tall.",
            "stated_as": "Designed for children from 40-120 lbs and 46”-63\"",
            "source_type": "listing",
            "source_url": "https://strolleria.myshopify.com/products.json",
            "source_read_at": "2026-10-12T20:06:05.806Z"
          }
        }
      ]
    },
    {
      "rank": 2,
      "merchant": {
        "slug": "strolleria-com",
        "display_name": "strolleria.com"
      },
      "product_id": "gid://shopify/Product/8085815623754",
      "name": "Britax UpNGo",
      "url": "/products/ucp/strolleria-com/8085815623754",
      "why": "The seat is 17.1 inches wide (SpaceSaver design), intended to leave room for siblings or carpoolers.",
      "cells": [
        {
          "column": "Width",
          "fact": {
            "field": "dimensions",
            "value": "Assembled dimensions are 15.5 inches long, 17.1 inches wide and 9 inches high.",
            "stated_as": "Product Dimensions: 15.5\" L × 17.1\" W × 9\" H",
            "source_type": "guide",
            "source_url": "https://strolleria.myshopify.com/products/britax-upngo-backless-booster-car-seat-raven-black",
            "source_read_at": "2026-10-13T01:06:58.930Z"
          }
        },
        {
          "column": "Three across",
          "fact": {
            "field": "seat width and three-across fit",
            "value": "The seat is 17.1 inches wide (SpaceSaver design), intended to leave room for siblings or carpoolers.",
            "stated_as": "17.1” seat leaves plenty of room for siblings & carpoolers without compromising trusted Britax safety and premium comfort.",
            "source_type": "guide",
            "source_url": "https://us.britax.com/shop/car-seats/upngo-backless-belt-positioning-booster-seat",
            "source_read_at": "2026-10-13T01:07:00.569Z"
          }
        },
        {
          "column": "Child limits",
          "fact": {
            "field": "child weight and height limits",
            "value": "The maker designs this booster for children weighing 40 to 120 lbs and measuring 46 to 63 inches tall.",
            "stated_as": "Designed for children from 40-120 lbs and 46”-63\"",
            "source_type": "guide",
            "source_url": "https://us.britax.com/shop/car-seats/upngo-backless-belt-positioning-booster-seat",
            "source_read_at": "2026-10-13T01:07:00.569Z"
          }
        }
      ]
    },
    {
      "rank": 3,
      "merchant": {
        "slug": "megababiesusa-com",
        "display_name": "megababiesusa.com"
      },
      "product_id": "gid://shopify/Product/7580807266558",
      "name": "Maxi-Cosi RodiFix Booster Car Seat",
      "url": "/products/ucp/megababiesusa-com/7580807266558",
      "why": "Measured by the reviewers: 13.5 lb, 18.5 in. wide at the back in the narrow setting and 21 in. in the widest, 17 in. across the front of the base, 12 in. at the lap belt path, 10 in. inside at the hips and 16 in. at the knees, 12 in. seat pan depth, and shoulder belt guide heights from 14 in. to 22 in.",
      "cells": [
        {
          "column": "Width",
          "fact": {
            "field": "measurements",
            "value": "Measured by the reviewers: 13.5 lb, 18.5 in. wide at the back in the narrow setting and 21 in. in the widest, 17 in. across the front of the base, 12 in. at the lap belt path, 10 in. inside at the hips and 16 in. at the knees, 12 in. seat pan depth, and shoulder belt guide heights from 14 in. to 22 in.",
            "stated_as": "Measured by the reviewers: 13.5 lb, 18.5 in. wide at the back in the narrow setting and 21 in. in the widest, 17 in. across the front of the base, 12 in. at the lap belt path, 10 in. inside at the hips and 16 in. at the knees, 12 in. seat pan depth, and shoulder belt guide heights from 14 in. to 22 in.",
            "source_type": "review",
            "source_url": "https://csftl.org/maxi-cosi-rodifix-review-2/",
            "source_read_at": "2026-10-19T15:38:00.206Z"
          }
        },
        {
          "column": "Three across",
          "fact": null
        },
        {
          "column": "Child limits",
          "fact": {
            "field": "child weight and height range",
            "value": "The store's listing describes a belt-positioning booster for children from 40 lb to 120 lb and 40 in. to 57 in. tall, while other sources give a minimum height of 43 in. (NHTSA and Consumer Reports say 43-57 in., and the manual's use section also says 43-57 in.), so the sources disagree on the minimum height.",
            "stated_as": "Belt-positioning booster 40-120 lbs & 40\" - 57\" in Height.",
            "source_type": "listing",
            "source_url": "https://top-stroll.myshopify.com/products.json",
            "source_read_at": "2026-10-18T19:37:33.814Z"
          }
        }
      ]
    }
  ]
}