Comparison
U-Haul 10' vs Penske 12'
Near-neighbor small boxes across brands: Penske lists more volume and payload; U-Haul publishes rear-door sizes Penske leaves unknown.
Short answer
Choose Penske 12' when cubic feet or listed payload is the limiter (450 cu ft / 3,100 lb vs U-Haul’s 402 cu ft / 2,850 lb). Choose U-Haul 10' when you need published rear-door dimensions (71×67 in) to pre-check a sofa or mattress—Penske’s door stays unknown on the pages we track. Both sizes list one-way as available; still confirm the corridor.
Specifications
| Truck | Volume | Payload | Interior (L×W×H) | Rear door | Typical use | Reviewed |
|---|---|---|---|---|---|---|
| U-Haul 10' Truck Official specs | 402 cu ft | 2,850 lb | 9'11" × 6'3" × 6'1" | 5'11" × 5'7" | Studio–1 bedroom | 2026-09-20 |
| Penske 12' Truck Official specs | 450 cu ft | 3,100 lb | 12'0" × 6'6" × 6'1" | Not published | 1–2 rooms | 2026-09-20 |
Choose by scenario
Studio without oversized seating
Light furniture and bins often fit either truck. Penske’s extra ~48 cu ft and 250 lb of payload give a little more margin if packing is imperfect.
Sofa or mattress is the bottleneck
U-Haul’s published 71×67 rear opening lets you sanity-check before pickup. Penske requires a local measure—do not assume a 12-foot sticker matches U-Haul’s door.
One-way small move
Both trucks list one-way available in our data. Fleet mix and weekend sell-outs still decide; model both so a counter upgrade is not a surprise.
Cross-shopping before a 15/16 step
If either small box looks tight, compare U-Haul 15' and Penske 16' next—not another guess at the 10/12 band.
What the published numbers actually say
U-Haul 10-foot: 402 cu ft, 2,850 lb payload, interior about 119 × 75 × 73 in, rear door 71 × 67 in, one-way available (checked 2026-09-20).
Penske 12-foot: 450 cu ft, 3,100 lb payload, interior about 144 × 78 × 73 in, rear door unknown, one-way available. The volume edge is modest; the door transparency gap is not.
Where Penske 12' wins on paper
Roughly 48 cu ft more cargo and 250 lb more listed payload favor Penske when the inventory is a little too big for an optimistic 10-foot pack and weight is climbing.
Longer interior length (144 vs 119 in) can help stand mattresses or stack boxes in a single aisle without touching payload yet.
Where U-Haul 10' wins on verification
Published door width and height matter when one piece decides the rental. A loveseat that clears 67 in of height on paper is a different risk when the opening is unknown.
Shorter exterior length can ease alley parking and apartment loops when volume truly fits 402 cu ft.
Same inventory, two brands
Run the calculator once with each truck in mind. A volume miss on U-Haul and a door-unknown warning on Penske are different failure modes—do not merge them into “small truck bad.”
If both look borderline, step up within a brand (U-Haul 15' or Penske 16') rather than forcing the 10/12 class.
Booking checklist
Start from cu ft and payload, then ask which brand publishes the door you need for your tallest piece.
Confirm one-way equipment at both providers for your dates—listings do not freeze a model year.
Skip price theater: rates move; these specs do not change weekly the way quotes do.
Related next reads: cargo van vs 10-foot inside U-Haul, and Penske 12' vs 16' when you already prefer Penske.
What could change this
- Never treat “10 vs 12 foot” as interchangeable across brands.
- Penske rear-door dimensions are not published—fit stays verify-with-provider.
- We do not compare live rental prices; availability and specs drive this page.
Compare with your inventory Load your real inventory instead of relying on length labels alone.