Treat your poster a lot like you would an essay. It's just a lot shorter.
A number of templates for posters designed in PowerPoint can be found on the internet.
Many are commercial printing services but you can download and use their templates to design your poster without using their printing service.
Save the poster as a PDF to get rid of any watermarks, company logos or instructions. You can then print them (if necessary) through any printing service.
We acknowledge the Australian Aboriginal and Torres Strait Islander peoples as the first inhabitants of the nation and acknowledge Traditional Owners of the lands where our staff and students, live, learn and work.