Verified Spec Data Matrix

12' Box Truck Dimensions, Interior Specs & Load Capacity

Exact 12-foot box truck dimensions: 138″ length, 78″ width, 74″ height, 450 cu ft interior capacity. Compare Budget & Penske 12ft specs with 2.5D visual load plan.

Pack In 2.5D Tool
Real Inside MeasurementsVerified Fleet Laser-Scanned Specs

12-Foot Usable Interior Clearance Callout

Standard rental sites report misleading exterior bumper-to-bumper lengths. Here are the exact inside cargo clearances.

369 cu ft / 450 gross
18% Safety Buffer Included
Advertised Class
12-Foot
Nominal fleet size designation
Usable Floor Deck
11'6" (138″)
Bulkhead to roll-up door
Interior Width
6'6" (78″)
Wall-to-wall cargo rails
Clearance Height
6'2" (74″)
Floor to ceiling roof ribs
Between Wheel Wells
Flush / 4' 2" (50″)
Flat floor / No major intrusion
Mom's Attic Shelf
None / Flat Wall
Continuous ceiling height
Roll-Up Door Opening
71″ × 71″
Maximum entry dimensions

11'6" Truck Dimensions & Real-World Clearance Guide

Dimensional Cheat Sheet • Verified clearances for major household items

18% Void Buffer Included
Dimension & Choke PointClear Clearance“What Actually Fits” (The Anxiety-Killer)
Interior Length
11'6" (138")

Accommodates standard 80" Queen mattress on edge or 84" 3-seat sofa stood vertically

Queen Bed & Upright Sofa
Interior Width
6'6" (78")

Fits standard 80" mattress on edge plus 2 parallel columns of medium moving boxes

Edge Mattress Fit
Interior Height (Ceiling)
6'2" (74")

74" ceiling supports standing Queen mattress on edge with vertical clearance

Vertical Mattress Fit
Door Opening (Choke Point)Critical Entry Check
71"W × 71"HRoll-Up Clearance

Entry threshold for standard double-door refrigerators, tall armoires & vertical sofas

Standard Fridge & Armoires
Usable Cargo Volume
369 cu ft450 cu ft gross

82% net usable volume factoring in real-world furniture voids, wheel wells & irregular shapes

18% Buffer Included
Deck Height (Step-In)
31" (2.6')

Commercial truck chassis height; requires momentum when wheeling heavy dollies

Commercial Chassis
Loading RampCritical Entry Check
No Ramp Included

Manual 25" lift off ground; 2 people strictly required for sofas & heavy appliances

Manual Lifting Required
Mom's Attic (Cab Shelf)
None (Flat Bulkhead)

Direct vertical front bulkhead; wardrobe boxes must be anchored flat on deck

Flat Bulkhead
Maximum Cargo Payload
3,100 lbs

Maximum safe cargo weight limit before rear axle suspension compression occurs

Suspension Rated
← Swipe table horizontally for full fit breakdown →Zero False Over-Capacity Guarantees

2.5D Interactive Cargo Layout for 11'6" Truck

Loaded with 1-Bedroom Small Apartment Preset
2.5D Isometric Cargo Simulation1 Bedroom Small Apartment Layout with Queen Bed, Loveseat, and 30+ boxes.
Customize & Pack In Sizer
2 fingers to pan/zoom • Scroll with 1 finger • Tap items
100%
10' Moving Truck (402 cu ft)
Exceeds Capacity • 23 Exceeded399.6 / 402 Gross Cu Ft
121.2% Full(399.6 / 329.6 cu ft)
Buffer
Includes 18% Packing Buffer
Est. Cargo Weight: 2,672 lbs / Max Payload: 2,810 lbs

23 items cannot fit in this vehicle's physical cargo dimensions. Upgrade recommended.

DIY Loading Assistance

Need 2 Experienced Helpers to Load 11'6" moving truck?

Keep your rental truck, skip the back pain. Book vetted local movers by the hour to pack & carry heavy items.

Starting Rate
From $85/hr
Includes 2 verified movers
100% Background-Checked Crews
Free Cancellation Up to 24h Before
Standard Damage Coverage Included

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Tailored Packing Supply Kit

Order Exact 36-Piece Box & Tape Kit on Amazon

Calculated precisely for 1-Bedroom Small Apartment. Heavy-duty corrugated cardboard rated for high-density truck stacking.

11
Small (1.5 cu ft)
16
Medium (3.0 cu ft)
5
Large (4.5 cu ft)
4
Wardrobe Boxes
Includes 3 rolls commercial packing tape + bubble cushion

TruckSizer is supported by our users. When you purchase moving supplies or book labor through our links, we may earn an affiliate commission at no additional cost to you.

Fleet Comparison: 11'6" Class Across Top Rental Brands

Factual cross-fleet comparison between U-Haul, Budget, and Penske for this size tier.

Rental CarrierSize TierInterior Dims (L × W × H)Gross / Usable Cu FtMax PayloadRamp & AtticAvg Fuel Economy
Budget12' Truck11'6" × 6'6" × 6'2"450 / 369 cu ft3,100 lbsRamp: No • Attic: No12 mpg
Penske12' Truck11'6" × 6'6" × 6'2"450 / 369 cu ft3,100 lbsRamp: No • Attic: No12 mpg
U-Haul10' Truck (Closest)9'11" × 6'4" × 6'2"402 / 330 cu ft2,810 lbsRamp: No • Attic: No12 mpg

Expert Loading Advice for 11'6" Moving Trucks

  • Popular size in Budget and Penske fleets offering 12% more cubic footage than U-Haul 10-foot trucks.
  • Standard automatic transmission with fuel economy averaging 12 mpg.

Frequently Asked Questions: 12-Foot Dimensions

What are the usable interior dimensions of a 12-Foot box truck?

The interior cargo deck measures 11'6" L × 6'6" W × 6'2" H (138″ × 78″ × 74″), providing 369 cu. ft. of usable storage.

Does the 12-Foot truck include a Mom's Attic cabover deck?

No. The 12-Foot truck features a flat bulkhead wall without an over-cab shelf, providing continuous floor-to-ceiling clearance.

What is the difference between advertised length and usable deck length?

12-Foot refers to the gross vehicle length / nominal class; usable floor deck length is 11'6" (138 inches).