If the base needs to sit, how long will it need to do so? A If the base needs to sit, how long will it need to do so? 1 – 3 weeks is a typical sit time. Someone will be back in touch to schedule the paving. Leave a Reply Cancel replyCommentEnter your name or username to comment Enter your email address to comment Enter your website URL (optional) Save my name, email, and website in this browser for the next time I comment. Notify me of new posts by email.