CEMBoysAltrincham, Trafford

Altrincham Grammar School for Boys: 11+ guide

Altrincham Grammar School for Boys (AGSB) is a high-performing Trafford grammar admitting through the area’s consortium (CEM-style) entrance test.

Exam board

CEM

Approx places

150

Selectivity

~7 applicants per place

Established

1912

Exam format

Trafford uses a consortium entrance test (CEM-style) across Maths, English and reasoning, sat once for multiple Trafford grammars.

Subjects tested

MathsEnglishVerbal ReasoningNon-Verbal Reasoning

Catchment & admissions

A Trafford catchment priority applies; the consortium test covers several schools.

Qualifying score & how hard it is

A standardised pass mark is set for the Trafford consortium each year.

Preparation timeline

Broad CEM-style preparation — including vocabulary and mixed-format reasoning — from Year 4–5, with timed practice before the test.

Frequently asked questions

What test do Trafford grammars use?+

Trafford grammars share a consortium entrance test (historically CEM-style) covering Maths, English and reasoning, taken once for the group of schools.

Figures here are indicative and for planning only — admissions arrangements change each year. Always confirm the latest details on Altrincham Grammar School for Boys’s official admissions page.

Is your child on track for Altrincham Grammar School for Boys?

Take the free 15-minute diagnostic for an age-standardised score and a clear gap analysis against grammar-school standards.