Saskatchewan Axle Weight Limits

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LEGAL LIMITATIONS

WEIGHT

MAXIMUM LEGAL WEIGHT ALLOWED

The maximum gross weight on any tire, except a tire on a steering axle on a bus, truck or truck tractor, is 10 kilograms per millimetre of tire width, as determined by the manufacturer’s width shown on the tire, up to a maximum of 3000 kilograms.

The maximum steering axle weight for a truck tractor equipped with a single drive axle or a tandem drive axle group is 6 000 kilograms.

The maximum steering axle weight for a truck tractor equipped with a tridem drive axle group is 7 300 kilograms.

the maximum gross weight for a single axle or any axle within an axle group or axle unit is:

  1. 9 100 kilograms on a primary highway;
  2. 8 200 kilograms on a secondary highway;
  3. 8 200 kilograms on a municipal highway; and
  4. during winter weight season, 10 000 kilograms on highways mentioned in clauses (a) to (c).

the maximum gross weight for a single-half axle unit is:

  1. 12 750 kilograms on a primary highway;
  2. 10 875 kilograms on a secondary highway;
  3. 10 875 kilograms on a municipal highway; and
  4. during winter weight season, 13 500 kilograms on highways mentioned in clauses (a) to (c).

the maximum combined gross weight of a wide-spread tandem axle group is:

  1. 9 100 kilograms on a primary highway;
  2. 8 200 kilograms on a secondary highway;
  3. 8 200 kilograms on a municipal highway; and
  4. during winter weight season, 10 000 kilograms on highways mentioned in clauses (a) to (c).

for a tandem axle group or any two adjacent axles within a tridem axle group, the maximum gross weight is:

  1. 17 000 kilograms on a primary highway;
  2. 14 500 kilograms on a secondary highway;
  3. 14 500 kilograms on a municipal highway; and
  4. during winter weight season, 18 000 kilograms on highways mentioned in clauses (a) to (c).

for a tridem axle group other than a tridem drive axle group, the maximum gross weight is:

(a) 24 000 kilograms on a primary highway, if the axle spread is greater than 3.6 metres but not greater than 3.7 metres;

(b) subject to subsection (10), 23 000 kilograms on a primary highway, if the axle spread is greater than 3.0 metres but not greater than 3.6 metres;

(c) 21 000 kilograms on a primary highway, if the axle spread is greater than 2.4 metres but not greater than 3.0 metres;

  1. (d) 20 000 kilograms on a secondary highway;
  2. (e) 20 000 kilograms on a municipal highway; and
  3. (f) during the winter weight season, weights as set out in clauses (a), (b) and (c) apply to the highways mentioned in clauses (d) and (e).

if the axle spread of a tridem axle group is greater than 3.0 metres, but not greater than 3.6 metres, the maximum gross weight for that tridem axle group is 24 000 kilograms on:

For a multiple axle group, the maximum gross

(a) 17 000 kilograms for a multiple axle group consisting of three or more axles with 12 or more tires; and

(b) 15 000 kilograms for a multiple axle group consisting of three or more axles with fewer than 12 tires.

In the case of an A-train or C-train, if the axle spacing between the rear axle unit on the lead trailer and the converter dolly axle unit is less than 3.0 metres:

(a) the maximum combined weight for two single axles is 17 000 kilograms; and

(b) the maximum combined weight for a single axle and a tandem axle group is 23000 kilograms.

(5) In the case of an end dump semi-trailer manufactured before January 1, 1989, the maximum combined weight for a tandem axle group on the semi-trailer and an adjacent tandem axle group within a combination of vehicles is:

(a) 32 000 kilograms, if the interaxle spacing is less than 5.0 metres but not less than 3.4 metres;

(b) 30 000 kilograms, if the interaxle spacing is less than 3.4 metres but not less than 3.0 metres; or

(c) 35 000 kilograms during the winter weight season for the axle group interaxle spacing listed in clause (a).

(6) In the case of an end dump semi-trailer manufactured on or after January 1, 1989, the maximum combined weight for a tandem axle group on the semi-trailer and an adjacent tandem axle group within a combination of vehicles is:

(a) 32 000 kilograms, if the interaxle spacing is less than 5.0 metres but not less than 4.5 metres;

(b) 30 000 kilograms, if the interaxle spacing is less than 4.5 metres but not less than 3.0 metres; or

(c) 35 000 kilograms during the winter weight season for the axle group interaxle spacing set out in clause (a).

Maximum Gross Weights During Spring Road Bans (Restrictions)

Note: There are 9 separated maximum weight charts for 9 load configurations in Appendix A, should I add here all of them?

MAXIMUM PERMIT WEIGHT ALLOWED

Maximum Allowable Registered Gross Vehicle Weight (GVW) – 63,500 kg

Source of information: http://www.publications.gov.sk.ca/freelaw/documents/English/Regulations/Regulations/H3-01R8.pdf

https://www.saskatchewan.ca/business/transportation-and-road-construction/information-for-truckers-and-commercial-trucking-companies/regulations-and-road-restrictions/increased-weights-and-road-restrictions

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