1. Solid Wooden/Timber: Carton 2.Glass: Air Bubble Film+Wood Crates/Plywood; Fumigation Treatment 3. Stainless Steel/Mild Steel: Carton+Plywood 4. Accept Customized Package The shop drawing and 3D drawing of the Stainless steel staircase design provided.The sales will tell you the package measurement and the shipping cost by air or by sea. Before the shipment, the engineer team will assemble the staircase or the railing. We also mark them and the assemled photos and the videos tell you how to install.