How long is the waiting time at the moment?
Usually the museum is less crowded on weekday mornings. With a Museumkaart or other discount card*, you can walk straight to the admission check without a reservation, unless a start time is required. Only Stedelijk Members do not need to book a start time. Don't forget to bring your discount card to the museum.
*Museumkaart, Friends of the Stedelijk Museum, Young Stedelijk Members, Rembrandtkaart, ICOM, Stadspas, Iamsterdam City Card, Amsterdam Pass, Holland Pass, Stedelijk Lerarenpas, VriendenLoterij VIP-KAART.