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Home / Data

The ItemFits Open Catalog Database

A comprehensive, provenance-tracked open database of doorway widths, vehicle cargo openings, furniture sizes, and appliance dimensions. Browse it, download it as JSON or CSV, and cite it.

A browsable, downloadable, provenance-tracked open database of the reference dimensions ItemFits uses to answer fit questions: doorways and openings, vehicle cargo openings, furniture, mattresses, appliances, and IKEA products. Every row is dual-unit, labeled with its source, and free to reuse with attribution.

Trusted across thousands of fit checks · updated daily
400 questions answered

The catalog

457 reference dimensions across six sections.

Every row is dual-unit (millimetres, centimetres, and inches), labeled with its provenance tier (official standard vs observed catalog) and its source, and free to reuse with attribution. Browse a section below, or take the whole thing as JSON or CSV.

Browse by section.

Vehicle cargo openings
Cargo-opening widths and heights, interior cargo space, and rear-passenger clearances across the ItemFits vehicle catalog.
339 rows · 38 official · 301 observed-catalog
Furniture & learned item dimensions
Standard furniture sizes plus other item dimensions the app has resolved and verified from real questions.
39 rows · 39 observed-catalog
Doorway & opening sizes
Standard interior, exterior, and passage-opening widths and heights, with the building-code or standard each figure comes from.
7 rows · 6 official · 1 observed-catalog
Mattress sizes
Twin, full, queen, king, and other standard mattress footprints and heights.
6 rows · 6 observed-catalog
Appliance dimensions
Refrigerators, washers, dryers, ranges, and other common appliances, with the source of each figure.
3 rows · 3 observed-catalog
IKEA product dimensions
Dimensions for common IKEA products the app answers fit questions about.
63 rows · 63 observed-catalog

Take the data

Download the dataset.

The figures on this page, as a machine-readable file. Free to reuse with attribution to ItemFits. Permalink: https://itemfits.com/data/catalog

JSON CSV

Methodology

How we counted this.

Every reference dimension ItemFits uses to answer fit questions that clears its source predicate and the internal catalog-integrity invariant rules: vehicle cargo openings, standard doorways and openings, furniture, mattresses, appliances, and IKEA products.

  1. 01Window: Reflects the currently-committed catalog snapshot.
  2. 02Source: the ItemFits vehicle catalog, the in-repo static dimension catalogs, and verified dimension_cache rows, aggregated through a trust and provenance gate into one committed snapshot. Each row is labeled with its provenance tier and source.
  3. 03Dimensions: each check uses what the visitor entered. When an item is named without exact measurements, ItemFits fills in typical dimensions before solving (from a product catalog, a saved or web-search lookup, or a model estimate), so these outcomes reflect real-world queries against typical item sizes rather than lab-measured objects.

The honesty contract

What we excluded.

Every published figure carries its sample size. Anything below the threshold is suppressed, never shown as zero.

  1. !Estimated-source and low-confidence vehicle locations, learned item dimensions below the confidence floor, user- or shop-scoped cache rows, unresolvable or flagged items, and any row that fails an internal integrity rule.
  2. !Items are modeled as rigid rectangular boxes (their width by depth by height envelope) and tested across orientations. We do not model irregular shapes, protruding handles or legs, or flexible materials, except where an explicit compression or take-apart allowance applies.

Cite this study

Use the numbers, link the source.

ItemFits Open Catalog Database. A provenance-tracked reference of doorway, vehicle cargo, furniture, mattress, and appliance dimensions, free to reuse with attribution. https://itemfits.com/data/catalog

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