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 Mono Stringer Staircase are provided by the designer.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. Sure we also mark them and the assemled photos.