FANS can expect free entry to NAB AFL Women's games in 2018 with the AFL keen for the competition to become entrenched in the sporting calendar.

With big crowds attending matches during the competition's first season and weekly television audiences nudging one million people, the opening month of AFLW has been a spectacular success. 

However, AFL CEO Gillon McLachlan told the Melbourne Press Club on Wednesday those responsible for running the game wanted to continue building momentum before people would need to pay to watch games.

"We're not going to be rushing into charging people because we're trying to build something," McLachlan said.

"[Have to] make sure this has depth, momentum and real traction before we begin to charge."

In 2017 spectators have only had to pay to attend AFLW games when they are doubleheaders with a JLT Community Series match.

However, standalone AFLW games have been free to attend.

McLachlan said late last week this season's AFLW Grand Final might be ticketed to avoid people being locked out of the ground and while a final decision has yet to be made, it is still likely to be free of charge.

The team that finishes on top of the AFLW ladder would earn the right to host the first premiership decider.

Adelaide and the Brisbane Lions are the only two undefeated teams, but play each other this week.

McLachlan said the success of AFLW would put some strain on the game's resources to meet the demands of women playing at grass roots, but it was a good problem to have as the game had for too long carried a subconscious message that women could do everything but play at the elite level.