Triangle has much to offer academically and socially. We understands the balance between these areas and strives to attain a level of excellence in each area while maintaining a friendly and inviting home where lifelong friendships can be made.

Triangle brothers strive to be leaders in the campus, local community, and their chosen fields of studies. Triangle offers a lot of opportunities to get involved and gain leadership experience and by joining Triangle, you are also gaining access to a whole network of over 22,000 members and alumni that will be there to help you out throughout your life's journey.

at Iowa State

​​Who Are We?

Triangle is a social fraternity of Engineers, Architects and Scientists. We are the only national social fraternity that requires specific fields of study and unlike most other social fraternities, Triangle does not have a Greek letter name. We are just called Triangle Fraternity.

The Iowa State Chapter was founded in 1964 and has a strong tradition of recruiting academically focused men. In addition, we strive to find men that live their life with integrity - those who make the choices to be leaders, scholars, professionals and gentlemen in all aspects of our lives. 


Learn more about who we are - Meet the Brothers.

​​A Home Away From Home

Frequently Asked Questions


What majors do we accept?

We accept anyone in the field of Engineering, Architecture, and Science and generally any major that is classified as a Bachelor of Science. If you are unsure, feel free to contact us to find out if your major is eligible.


How much are dues?

New Members: $390
Actives: $425/semester

Who can live in the house?

Any of our members can live in house. Though it is not required, we encourage new members to live in the house with brothers.


What does Triangle Housing have to offer?

The House is able to hold 42 members and the House Director comfortably. There is 1 Quad, 11 Doubles, 15 Singles Rooms and all rooms are furnished with a desk, bed, mattress, closet, and chest of drawers.

Additionally, we have:

  • 17 parking spots

  • Volleyball court

  • Bike racks

  • A Library

  • Study rooms

  • Music room

  • Full service 24-hr kitchen

  • Meals catered by Greek House Chefs

  • Theater room with HD projector and 5.1 Surround Sound

  • Bus stop right in front of the house 

​​Building Better Men

Triangle Fraternity is a home away from home. The word "fraternity" implies Brotherhood, a close group of friends sharing common interests that live together. Triangle provides an excellent place for students in technical fields to satisfy the many needs of college life. 

Triangle just recently moved into a new house on 140 Lynn Avenue. We take pride in taking great care of the property and ensuring that its an inviting place for all. Come see it for yourself! We will gladly set up a tour for you.

Discover Triangle