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Schedule 24: Designated Truck 6 — Tri-Drive 4-Axle Truck

RegSenseFleet SafetyWeights and dimensionsOntarioCFR RegulationsFocus AreaCanada SectionEnglishSize and Weight LimitsTransportation

Ontario

Vehicle Weights and Dimensions — For Safe, Productive and Infrastructure-friendly Vehicles

Part VII — Schedules of Designated Vehicles and Combinations

Designated Truck 6 — Tri-Drive 4-Axle Truck

Vehicle Description

Designated Truck 6 is a 4-axle truck with a front single axle and a rear tri-drive axle.

Qualifying Preconditions

Weight - The front axle weight must be at least 23 per cent of the gross vehicle weight at all times.

Equipment and components, see ss. 5, 8, 11

Exceptions

Until December 31, 2025, the dimensional limits for Wheelbase (6), Effective Rear Overhang (12), Hitch Offset (32) and Rear Tandem Axle Track Width (35) do not apply if the truck was built before July 1, 2011.

An overhanging boom of a rear-facing crane that extends 1.0 metre or less past the rearmost point of the truck is exempt from the dimensional limit for Effective Rear Overhang (12).

DIMENSIONAL LIMIT CHART

VehicleRef.FeatureDimensional Limit
Truck(1)Length Max. 12.5m
Truck(2)Width Max. 2.6m
Truck(3)Height Max. 4.15m
Truck(4)Inter-axle SpacingNot controlled
Truck(5)Tridem Axle Spread2.4 to 2.8m
Truck(6)WheelbaseMin. 6.6m
Truck(12)Effective Rear OverhangMax. 4.0m
Truck(20)Box LengthNot controlled
Truck(32)Hitch Offset (if drawing trailer)Max. 2.5m
Truck(35)Tridem Track Width2.5 to 2.6m

WEIGHT LIMIT CHARTS

FRONT AXLE MAXIMUM (LOWEST OF A, B AND C)
FeatureWeight Limit
a) by manufacturer’s axle rating or defaulti. GAWR (if verified), or
ii. If GAWR not verified, the lower of: 
  1. 5,000 kg, and
  2. the sum of the maximum tire load ratings
b) by tire width11 kg × combined tire widths in mm
c) by axle unit descriptionSingle Axle: 9,000 kg
OTHER AXLE MAXIMUMS (LOWEST OF A, B AND C)
FeatureWeight Limit
a) by manufacturer’s axle rating or defaulti. GAWR (if verified), or
ii. If GAWR not verified, the sum of the maximum tire load ratings
b) by tire width10 kg × combined tire widths in mm
c) by axle unit descriptionTridem Axle by axle spread:
2.4 < 2.7m : 21,300 kg
2.7 to 2.8m: 22,000 kg
ALLOWABLE GROSS VEHICLE WEIGHT
FeatureWeight Limit
Allowable Gross Vehicle Weight:actual weight on the front axle plus the other axle maximums

O. Reg. 457/10, s. 29; O. Reg. 167/12, s. 6; O. Reg. 16/14, s. 27; O. Reg. 368/17, s. 26.

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© King's Printer for Ontario, 2012-2021. The text is not the official version of Ontario's Highway Traffic Act or associated regulations. For official text, refer to www.ontario.ca/laws.

['Size and Weight Limits']
['Weights and dimensions']
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