A summary of the fundamental rules of pickleball can be found at the website noted below
The complete set of rules can be found here.
What is the maximum size of a pickleball paddle?
2.E.3. Size. The combined length and width including any edge guard and butt cap shall not exceed 24 inches (60.96 cm). The paddle length cannot exceed 17 inches (43.18 cm). There is no restriction on paddle thickness. (Revised January 1st, 2016, effective July 1st, 2017)
2.E.4. Weight. There is no restriction on paddle weight.
What is the average age of pickleball players?
Based on the US Single Sport Participation Report of the Sports and Fitness Industry Association (SIFA), 75% of Core Players (defined as players who play more than 8 times per year) are 55 and older.
How many holes does a pickleball have?
Regulation pickleballs must have between 26-40 holes.
Most outdoor balls have 40 while most indoor balls have 26 although there is no set number for indoor or outdoor balls. Some pickleball equipment manufacturers make their balls differently, like the P7 Outdoor Pickleball that has 32 holes.
Is there a difference between a pickleball court and a badminton court?
A pickleball court is basically a badminton doubles court (both are 20 ft x 44 ft) with three significant differences:
the net is lower on a pickleball court versus a badminton court,
the no service line in badminton is 6.5 feet from the net versus the no volley zone in pickleball at 7 feet from the net, and,
badminton has different lines for singles and doubles play, pickleball does not.