If an auction lists "Buyer Arranges Shipping" this means that you are responsible for shipping the product from the seller's facility to yours.
If you do not already have a carrier, B-Stock has partnered with several different shipping partners. Please visit our Logistics & Fulfillment page to review the services they offer.
Most "Buyer Arranges Shipping" auctions of one pallet or more will have a shipping estimate provided by Freight Quote. This estimate is calculated based on the distance between your zip code and the seller's, number of pallets, pallet dimensions, shipping weight, and several other attributes that may vary for each buyer.
This blog post goes into more detail.