The spread limit poker term refers to the specific betting structure within which you can bet or raise. The spread limit prevents you from overbetting a pot.
For example, some of the most typical spread limit structures are the $2-$6 spread and the $3-$10 spread. Taking the latter as an example, this means that you can bet as little as $3 or as much as $10 on every round.
Spread limit represents a crossover between limit and No Limit Texas Hold’em.