The 'outside maximum' tells you how much you can wager on bet spaces located on the outer portion of the table layout such as: black/red, even/odd, high 18/low 18, columns or dozens. For example, if the inside maximum is C$100, then you can place stacks worth C$25 each on 4 individual number spaces to meet the requirement.
You can place a single wager or multiple wagers to meet this requirement. Generally, these are lower than the maximum for outside bets, because inside bets come with higher payouts. An 'inside maximum' refers to how much you can wager on bet spaces inside the table layout.
