This year's Garage Sale Trail is on October 19 and 20, with more than 60 sites on offer throughout the city.

Wollongong is participating in the national event, which aims to encourage the community to put second-hand first and minimise impact on the planet.

Using the www.garagesaletrail.com.au website, shoppers can map out sales they would like to visit over the weekend free by searching the map and creating their own personalised Garage Sale Trail.

Every garage sale gets a unique sale page.

Corrimal Public School will be one of the area's garage sale sites throughout the weekend.

Corrimal Public School P&C's Rhiannon Marshall said this was the first time the school had been involved.

"We were looking for a fundraiser that would help support us to put in a new playground for the kids," she said.

"We also wanted to be sustainable, community-focused and get kids and families involved.

"It also helps families make some money and de-clutter their homes."

She said the school would have 25 sellers on the day, including car boot sales and tables, as well as a second hand book stall, cake stall, plant stall and other food.

Wollongong Lord Mayor Gordon Bradbery said the garage sales offer a fantastic way of selling stuff you no longer need or finding that vintage fashion or quirky collectable item.

"Council gladly supports this national event as it diverts a lot of material from landfill at Whytes Gully and it encourages people to get to know their neighbours by attending the garage sales," Cr Bradbery said.

"With thousands of items for sale, you never know what you'll find."

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