Applying for an Australian skills assessment as a Joiner to migrate to Australia does not necessarily require a qualification; this is dependent upon the country of your passport.
The Down Under Centre has access to Australia’s Country Education Profiles. This can confirm if your qualifications will be recognised so you can complete your skills assessment and obtain a visa to work in Australia as a Joiner. If you don’t hold any qualifications you can still move forward with your Australian Joiner skills assessment if you can provide 5 years of paid work experience.