Bargains are the business at the launch of the new Op Shop Mega Barn

Bargain hunters will rejoice at news Perth's biggest op shop will open in Canning Vale on 12 March, bringing a completely new concept for charity stores.

Good Samaritan Industries' (GSI) new Mega Barn - located on the corner of Bannister and Magnet Roads in Canning Vale - gives shoppers the opportunity to sort through 31 tonnes of clothing, textiles and bric-a-brac, mostly on sale at $6 per kilogram.

To coincide with the launch of the new Mega Barn - which will trade from Monday to Saturday from 10 AM to 4 PM - per kilo prices will be offered at a 50 percent reduction, to $3 per kilo until the end of March.

Free family fun is also planned to celebrate the opening day, with pony rides, fairy floss, face painting and a cuddly animal farm for children from 10 AM until 2 PM on Saturday 12