Legal vehicle weights in Quebec
Ordinary legal limits on gross, axle, axle-group, wheel, and tire loading, including limits determined by axle configuration or spacing.
164 facts, each with the passage it comes from, quoted from 2 official sources.

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What legal limits apply to single axles, tandem axles, and larger axle groups at each spacing?Nothing on file for Quebec answers this yet.
How do wheel and tire specifications affect legal weight limits?Nothing on file for Quebec answers this yet.
How does insufficient axle spacing reduce an applicable weight limit?Nothing on file for Quebec answers this yet.
Facts
9 topics
Maximum gross vehicle weight (Measures)
Maximum legal gross weight of a vehicle or combination, in kilograms.
- 7,250 kg15,983 lbCategory E.1, road vehicle other than a tractor
- 7,700 kg16,976 lbCategory E.1, tractor equipped with a tridem axle group at the rear
- 5,500 kg12,125 lbCategory E.1, tractor not referred to in subparagraph ii
- 14,000 kg30,865 lbCategory E.2
Maximum weight on two axles (Measures)
Maximum legal weight carried by any two consecutive axles, in kilograms.
- 11,000 kg24,251 lbAxle group of category E.2 or E.3
- 15,500 kg34,172 lbAxle group of category E.7 at the rear of an intercity bus or a motor home
- 13,500 kg29,762 lbGroup of 2 axles that does not belong to another category and with a spacing of 1.2 m or more; normal period
- 10,000 kg22,046 lbGroup of 2 axles with a spacing of less than 1.2 m; normal period
Maximum weight per axle (Measures)
Maximum legal weight carried by any one axle, in kilograms.
- 5,500 kg12,125 lbCategory E.1 axle
- 13,500 kg29,762 lbCategory E.4 axle at the rear of an urban bus
- 18,000 kg39,683 lbCategory E.7; vehicle assembled before January 1, 2026 whose axle spacing is 2.4 m or more; normal period; until December 31, 2035
- 10,000 kg22,046 lbNon-steering axle; normal period
Maximum weight on an axle group (Measures)
Maximum legal weight carried by a group of three or more consecutive axles (tridem, quadruple, or larger group), in kilograms.
- 10,000 kg22,046 lbGroup of 3 axles that does not belong to another category and with a spacing of less than 1.2 m; normal period
- 18,000 kg39,683 lbGroup of 3 axles that does not belong to another category with a spacing of 1.2 m or more; normal period
- 28,000 kg61,729 lbGroup of at least 4 axles that does not belong to another category and with a spacing of 4.8 m or more; normal period
- 18,000 kg39,683 lbGroup of at least 4 axles with a spacing of at least 1.2 m, but less than 2.4 m; normal period
Maximum weight per unit tire width (Measures)
Maximum legal weight per unit width of tyre, in kilograms per metre of tyre width.
10,000 kg/m
Pneumatic tire that is not wide-base and that is mounted on a single wheel of an axle or group of axles of category E.4 to E.20
Axle weight reduction per spacing deficit (Measures)
Amount, in kilograms, by which a stated axle or gross weight limit is reduced for each complete increment by which the actual axle spacing falls short of the spacing required for that limit.
- 3,000 kg6,614 lbAny axle group that does not have all the characteristics of the tandem axle, tridem axle or quad axle
- 1,000 kg2,205 lbCategories V.13, V.14, V.39; until December 31, 2029; distance between the first axle and the last axle of the vehicle combination (d) of less than 15 m
- 1,000 kg2,205 lbCategories V.16, V.17, V.18, V.40; until December 31, 2029; distance between the first axle and the last axle of the vehicle combination (d) of less than 16.5 m
- 750 kg1,653 lbReduction applies to the 36 000 kg limit in subparagraph b of paragraph 1 and to the 42 000 kg, 45 000 kg, 51 000 kg, 66 000 kg, 72 000 kg, 74 000 kg, 76 000 kg and 79 000 kg limits
Axle spacing deficit increment (Measures)
Length, in metres, of each complete increment of axle-spacing shortfall that triggers a reduction in the applicable axle or gross weight limit.
- 0.5 m1′ 7.5″Categories V.13, V.14, V.39; until December 31, 2029; distance between the first axle and the last axle of the vehicle combination (d) of less than 15 m
- 0.5 m1′ 7.5″Categories V.16, V.17, V.18, V.40; until December 31, 2029; distance between the first axle and the last axle of the vehicle combination (d) of less than 16.5 m
- 0.3 m1′Reduction applies to the 36 000 kg limit in subparagraph b of paragraph 1 and to the 42 000 kg, 45 000 kg, 51 000 kg, 66 000 kg, 72 000 kg, 74 000 kg, 76 000 kg and 79 000 kg limits
Maximum gross weight by axle configuration (Measures)
Maximum legal gross weight of a vehicle or combination, in kilograms, as a function of the number of axles, the axle configuration, and the minimum spacing between specified axle groups.
- 36,000 kg79,366 lb7-axle road vehicle combination with 4 axles under the semitrailer; tractor weight; minimum spacing between centre of last axle of tractor tandem and centre of first axle of the axle group under the semitrailer is 10 m
- 74,000 kg163,142 lb7-axle road vehicle combination with 4 axles under the semitrailer; whole combination; minimum spacing between centre of last axle of tractor tandem and centre of first axle of the axle group under the semitrailer is 10 m
- 41,500 kg91,492 lbCombination of road vehicles that does not belong to any other category
- 51,000 kg112,436 lbCombination of road vehicles with 4 axles or fewer, minimum spacing between the centre of the rear single axle of the tractor or of the last axle of its tandem axle and the centre of the single axle or of the first axle of the axle group located under the semi-trailer of 8.50 m
Where these facts come from
- Règlement sur les normes de charges et de dimensions applicables aux véhicules routiers et aux ensembles de véhicules routiers, C-24.2, r. 31.1(opens in a new tab)
www.legisquebec.gouv.qc.ca, web page, 140 facts
- C-24.2, r. 35 — Règlement sur le permis spécial de circulation(opens in a new tab)
legisquebec.gouv.qc.ca, web page, 24 facts