Repco Whanganui will fire up the barbecue in their carpark to raise funds and profile for the Whanganui Advocacy and Support Trust.
Nicola MacDonald from Repco said they were wanting to make more use their trailer with two barbecues to cook about 400 sausages also donated from Repco alongside bread and condiments.
"It's about getting the word out there about the trust and we can do that through community power."
MacDonald organised the event alongside colleague Paige Walker whose aunt Jane Bilderbeck is one of the main drivers for the trust.
MacDonald said people like Bilderbeck were one in a million for starting the trust.