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Permitted dimensions

Maximum dimensions and overhangs authorized by an OS/OW permit, including how rear overhang is measured.

211 facts from 3 places, each quoted from the agency that sets it.

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Facts

6 topics

Maximum rear overhang (m) (Measures)

The maximum distance by which the load or equipment may project rearward beyond the rear of the vehicle.

  • New York
    1.22 m (4′)

    Across 4 cases, each with its own conditions.

  • Ontario
    4.65 m (15′ 3″)

    Across 6 cases, each with its own conditions.

  • Quebec
    1 to 6 m (3′ 3.5″ to 19′ 8″)

    Across 10 cases, each with its own conditions.

Maximum height (m) (Measures)

The maximum overall height, including load and equipment, allowed under the permit.

  • New York
    4.12 to 4.85 m (13′ 6″ to 15′ 11″)

    Across 20 cases, each with its own conditions.

  • Ontario
    4.26 m (13′ 11.5″)

    Across 9 cases, each with its own conditions.

  • Quebec
    4.3 to 5 m (14′ 1.5″ to 16′ 5″)

    Across 12 cases, each with its own conditions.

Maximum width (m) (Measures)

The maximum overall width, including load and equipment, allowed under the permit.

  • New York
    2.59 to 7.62 m (8′ 6″ to 25′)

    General rule 3.66 m (12′), with 29 other cases.

  • Ontario
    3.7 to 5 m (12′ 1.5″ to 16′ 5″)

    Across 10 cases, each with its own conditions.

  • Quebec
    4.3 to 5.75 m (14′ 1.5″ to 18′ 10.5″)

    Across 29 cases, each with its own conditions.

Maximum length (m) (Measures)

The maximum overall length, including load and equipment, allowed under the permit.

  • New York
    12.2 to 48.8 m (40′ to 160′)

    General rule 21.9 m (72′), with 36 other cases.

  • Ontario
    12.5 to 45.8 m (41′ to 150′ 1″)

    Across 10 cases, each with its own conditions.

  • Quebec
    17 to 40 m (55′ 9.5″ to 131′ 3″)

    Across 22 cases, each with its own conditions.

Maximum front overhang (m) (Measures)

The maximum distance by which the load or equipment may project forward beyond the front of the vehicle.

  • New York
    0.91 m (3′)

    Across 4 cases, each with its own conditions.

  • Quebec
    2 to 4 m (6′ 6.5″ to 13′ 1.5″)

    Across 6 cases, each with its own conditions.

Not stated in Ontario.

Rear overhang measurement basis (In words)

The reference point from which rear overhang is measured, such as from the chassis of the semi-trailer to the rear extremity of the load or equipment.

  • Ontario

    from the centre of the rearmost axle

  • Quebec

    measured between the semi-trailer chassis and the rear end of the structure

    For Class 2.

Not stated in New York.

Where the comparisons come from