Do you choose your engineering discipline when you apply to Ontario universities, or after first year?

Engineering in Ontario: common first year, or pick your discipline now?

Updated August 22, 2026

It depends entirely on the campus, and getting it wrong costs you a choice. Western, Queen's, McMaster, York, Windsor and Lakehead admit to one Engineering code and let you choose after a common first year. Waterloo, Guelph, Carleton, TMU, Laurentian and Ontario Tech make you pick a discipline on the application — and so does U of T this cycle, with its undeclared option paused. Brock and Trent each offer a single engineering degree. Every campus, below.

144

engineering programs

campuses

70–90%

published floors

Two models, and why it matters before you apply

Ontario engineering faculties admit in one of two ways. Common first year: you apply to one code — “Engineering” — take the same courses as every other first-year, and choose Mechanical, Civil, Electrical or Software at the end of the year, with placement usually by first-year grades. Pick a discipline: each discipline is its own OUAC code, you apply to Mechanical or Software specifically, and there is no generic “Engineering” to apply to at all.

The trap is applying to a pick-a-discipline campus as if it were common first year. Waterloo says outright: you can apply to only one Waterloo engineering program per OUAC application, and Software and Biomedical are not available as alternate choices. A student who lists “Waterloo Engineering” in their head and picks Mechanical on the form because it seemed safe has applied to Mechanical. Nothing else.

Which campus does which

Common first year — one code, choose later (6 campuses)

Western, Queen's, McMaster, York, Windsor, Lakehead.

Pick a discipline on the application (7 campuses)

U of T (St. George), Waterloo, Guelph, Carleton, TMU, Ontario Tech, Laurentian. Ontario Tech lists every discipline as its own code but also offers a Comprehensive Engineering degree (DEU) that stays broad. U of T is here for this cycle only: its undeclared TrackOne code is paused for September 2027 and 2028 entry, so you apply to one of the Core 8 disciplines or Engineering Science.

A single engineering degree (2 campuses)

Brock, Trent — one engineering degree each: Brock’s Integrated Engineering, and Trent’s Chemical Engineering dual degree with Swansea. Nothing to choose between after you are in.

Campus	You apply to	Range	How
Lakehead	Engineering (co-op available) (Thunder Bay and Barrie)	70%	Choose after a common first year
Ontario Tech	Comprehensive Engineering	73–77%	Direct entry
Windsor	General Engineering	74%	Choose before second year
Brock	Integrated Engineering	80–83%	Direct entry
Trent	Chemical Engineering: Trent/Swansea Dual Degree	80%	Choose on the application
York	Engineering (BEng - Co-op available)	80–87%	Choose after a common first year
McMaster	Engineering I - Discovery Track	87%	Choose At the end of first year. McMaster's Engineering I is a common first year
Queen's	Smith Engineering – Common First Year programs	87–90%	Choose At the end of first year (discipline selection happens in February
Western	Engineering	87–93%	Direct entry
Algoma	not offered at Algoma	—	Not offered
Carleton	no general Engineering entry at Carleton - you pick a discipline on the application	—	No Grade 12 route — see page
Guelph	no general Engineering entry at Guelph — you pick a discipline on the application	—	No Grade 12 route — see page
Laurentian	no general Engineering entry at Laurentian — pick Chemical, Mechanical or Mining on the application	—	No Grade 12 route — see page
Laurier (Waterloo)	not offered at Laurier	—	Not offered
Nipissing	not offered at Nipissing	—	Not offered
TMU	no general Engineering entry at TMU — pick a discipline, or use first-semester Undeclared Engineering (SEU)	—	No Grade 12 route — see page
U of T (Mississauga)	not offered at UTM (Mississauga)	—	No Grade 12 route — see page
U of T (Scarborough)	not offered at UTSC	—	Not offered
U of T (St. George)	not offered as a general/undeclared route right now — TrackOne, Undeclared Engineering (TEO) is paused	—	No Grade 12 route — see page
Waterloo	not offered as a single generic "Engineering" program at Waterloo	—	No Grade 12 route — see page

The ones that need explaining

Lakehead: two years to a diploma, two more to the degree

One code admits you; in Lakehead’s words you “earn an Engineering Technology Diploma after completing the first two years,” then the BEng in two more. Six disciplines. If you need more preparation first, the Common Year in Applied Science is the bridge.

York: the Boost supplementary decides your discipline

Lassonde merges every discipline into a single OUAC selection with a common first year. Your discipline is decided by the Boost supplementary co-application York sends after you apply, and a Program Guarantee lets you lock in your preferred discipline before you accept. Skip the supplementary and you have applied to Engineering in general and nothing in particular.

Ontario Tech: the bridge for missing prerequisites

Every discipline is its own code, but Pre-Engineering is, in Ontario Tech’s words, “for students who did not have the opportunity to take all the prerequisites or did not achieve sufficient grades” — a one-semester bridge into any engineering program for someone with Advanced Functions who missed Calculus, Chemistry or Physics. Few students know it exists.

Carleton: a thirteen-point spread

No common first year, and the ranges split hard: Aerospace and Mechanical at 88–90%, Software, Environmental and Computer Systems at 75–80%. Same faculty, same building, thirteen points apart.

Trent and Laurier: read the name

Trent’s only engineering code is a Chemical Engineering dual degree with Swansea University in Wales. Laurier has no engineering faculty at all — its “Software Engineering” is a computing degree, not accredited engineering.

Everything here needs MHF4U, MCV4U, SCH4U and SPH4U, and most campuses set a minimum in each as well as in the average — Ontario Tech wants a combined 70% in the math and science with nothing below 60. Missing Physics is the most common way to lose engineering before you apply. What SPH4U gates, and what stays open without it.

The common-entry doors, by range

The codes that admit to engineering broadly rather than to one discipline:

Every engineering programme in the province, by campus and range, is on the engineering major page.