CORTE MADERA, Calif.--(BUSINESS WIRE)--Restoration Hardware Holdings, Inc. (NYSE:RH) today announced its intention to offer $250 million aggregate principal amount of convertible senior notes due 2020 in a private placement to one or more initial purchasers. Restoration Hardware also intends to grant the initial purchasers of the notes a 13-day option to purchase up to an additional $50 million in aggregate principal amount of the notes on the same terms and conditions, for a total potential of