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To keep using 3D Warehouse, Update SketchUp.
3D Warehouse will be disabled on this version of SketchUp on June 30, 2023. Web services, like 3D Warehouse, need to be turned off in unsupported versions of SketchUp to maintain security.
3D Warehouse will be disabled on this version of SketchUp on Jan 31, 2023. Web services, like 3D Warehouse, need to be turned off in unsupported versions of SketchUp to maintain security.
The double quarter turn or double quarter landing allows the stair case to turn through 180 degrees. This is achieved by turning 90 degrees on two large square steps or landings.