Sophie says if she is one of the lucky ones that snaffles a free wedding dress from a boutique in Mount Hawthorn giving away gowns to brides in need, her hubby will have to finally marry her.

The owner of Perth boutique Bridal by Aubrey Rose Karen McCommell is giving away wedding dresses worth thousands of dollars to brides in need.

She has set aside two hours on Monday morning, starting at 9.30am, for brides who are short of cash to choose a free wedding dress worth up to $3000.

Just before 8am more than 40 wannabe brides were queuing up outside the Oxford Street store hoping to get a free dress.