Where our numbers come from
Dimensions for 2018 and newer trucks are compiled from manufacturer specifications and dealer spec sheets, and each generation is labeled:
- Verified — checked against a published spec during our 2026 update.
- Spot-check — compiled from manufacturer spec history, but not yet re-confirmed. The numbers are close enough to compare trucks; confirm with the accessory maker before you buy.
Trucks from before 2018 come from our original tables, first published in 2015–2016.
Numbers are inside dimensions and approximate. Spray-in liners, drop-in liners and optional equipment change them slightly.
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Affiliate disclosure
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