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rrhagentbiz/child-car-seat-specifications

Child Car Seat Specifications — 25 Models, NHTSA Ratings + Verified Width (2026) NHTSA ease-of-use ratings (securing, installation, instructions, recall count) merged with a manufacturer-verified overall width in inches for 25 convertible/combination child car seats. NHTSA's own childSeats dataset does not publish a comparable width field — this is the fit-critical number parents need to determine three-across seating and is independently sourced/cross-checked per model. 21 of… See the full description on the dataset page: https://huggingface.co/datasets/rrhagentbiz/child-car-seat-specifications.

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Child Car Seat Specifications — 25 Models, NHTSA Ratings + Verified Width (2026)

NHTSA ease-of-use ratings (securing, installation, instructions, recall count) merged with a manufacturer-verified overall width in inches for 25 convertible/combination child car seats. NHTSA's own childSeats dataset does not publish a comparable width field — this is the fit-critical number parents need to determine three-across seating and is independently sourced/cross-checked per model. 21 of 25 rows carry an NHTSA ID, 25 carry a verified width.

Data: `carseatmatch-child-seat-specifications.csv` — one row per model, 25 rows.

Why this exists

NHTSA publishes ease-of-use ratings (ease of securing the child, ease of installing the seat, clarity of instructions) and recall counts per model, but no field for the seat's actual overall width — the single number that determines whether three seats fit across a given back bench. This dataset merges NHTSA's ratings with an independently verified width figure per model.

Columns

column	meaning
`nhtsa_id`	NHTSA childSeats database ID, for cross-reference against NHTSA's own published ratings.
`rf_` / `ff_`	rear-facing / forward-facing weight and height limits per the seat's own manual.
`nhtsa_overall_rating` etc.	NHTSA's 1-5 ease-of-use ratings (securing the child, installing the seat, clarity of instructions) and cumulative recall count.
`overall_width_in`	the seat's widest point, in inches — manufacturer-published spec, cross-checked against a second source at entry time (see `width_source`).
`rated_three_across`	whether this seat is commonly recommended as narrow enough to be part of a three-across combination (not a guarantee for every vehicle bench — see `price_band` for budget-tier trade-offs).

Sourcing caveat, stated plainly. NHTSA ratings and recall counts come from NHTSA's own published childSeats data. Width is independently verified per model against the manufacturer's own spec sheet; where sources disagreed, the wider (more conservative) figure was kept.

Source and license

Compiled and maintained by [CarSeatFit](https://carseatmatch.com) (carseatmatch.com) — matches car seats to a specific vehicle by exact rear-bench width and NHTSA ratings, not generic reviews. Licensed CC-BY-4.0.