Doubling down means doubling the size of your
original bet. A player may usually double down on his original hand.
To double down place your cards face up in front of you and place a bet
equal to your original bet, behind your original bet.
When you double down you are dealt only one more card for that hand. You
cannot stand on your original hand or take more then 1 additional card.
Casino rules vary for doubling down. In Atlantic City the rules of
Blackjack have been standardized and are the
same in all casinos, however in other areas there are casinos that do not
permit players to double-down after splitting a pair. Additionally, some
casinos will not allow a player to double down after receiving an ace as a
first or second card. Other casinos allow doubling on totals of 10 or 11 only.
This is why it is very important to establish the casino rules before playing.