Final answer:
In welding, the spacing for a tee joint varies and should be specified by the welding procedure specifications. There isn't a one-size-fits-all answer, as it depends on material thickness and type.
Step-by-step explanation:
When preparing a tee joint in welding, the spacing between the vertical sheet (or pipe) and the horizontal sheet is important for welding quality and strength. While the exact spacing can vary depending on the specific requirements of the joint, a common practice is to space the vertical sheet a small distance above the horizontal sheet. This is known as the root gap and allows for proper penetration of the weld.
However, the provided information does not specify an exact distance for this spacing. Instead, it discusses related concepts and provides examples such as the importance of keeping pipes parallel to the table top, measuring vertical height, and spacing between objects like columns or studs. To find the appropriate spacing for a tee joint, typically you would refer to the welding procedure specifications (WPS) for the project, which would provide the necessary dimensions based on the thickness and type of materials being welded.