Yes, deck boxes and tournament cases are designed to fit standard TCG card sizes (63×88mm), making them compatible with Pokémon, MTG, Yu-Gi-Oh!, and most trading card games. Some models also fit larger Japanese cards or graded slabs. For B2B distributors, stocking universal deck boxes increases versatility and reduces inventory complexity. Retailers can market them as “multi-game compatible,” appealing to a broader audience and ensuring strong sell-through rates across diverse TCG communities.