SeaTac Car Rental Facility Railings, Stairs, Tekla Steel Detailing Steel Drawings for the SeaTac Car Rental Facility in Seattle WA. Includes self supporting stair with bar guardrails and a circular Exit Screen Support System. PROJECT PHOTOS SeaTac Photo Steel Construction Photo Steel Structure Erection Steel Staircase SeaTac – TGC Consulting Site Photo 3D Tekla Stairs PROJECT DRAWINGS SeaTac Car Rental SeaTac Staircase Details