How to Play Shanghai Rummy: Rules, Setup, & Scoring
1. Shuffle 2–3 decks of cards together. If you're playing with 3 or 4 people, then use two 52-card decks of cards with 1 joker for a total of 105 cards. If you have 5–8 players, then use 3 decks and 2 jokers for a total of 158 cards. Shuffle the cards thoroughly to create the deck. [6]