Hi, No problem placing the Play Palace Bounce House directly on grass or dirt, but for indoor use, you will need the optional sand bag anchors. We ship the same business day from the west coast. Transit to the east coast is 5 business days, and the rest of the country is 5 or less. Please see the time-in-transit map here: http://blastzone.com/shop/pc/Shipping-Return-Policy-d5.htm