No, tickets are not required as entry to the Saint Spijkenisse Market is free. You can directly access the market.
The concept of 'tickets' does not apply to the Saint Spijkenisse Market. It is a public outdoor or open-hall market accessible to everyone without an admission charge. Visitors can walk directly into the market area and begin browsing or shopping.
Any transactions concern direct purchases of goods from individual stallholders. No central ticketing booth or entrance fee exists.