JavaScript must be enabled in order to use this site.Please enable JavaScript in your browser and refresh the page. Construct Open Tee Joint Used to extend or shorten a multi-line to its intersection with another multi-line and construct an open tee joint. You can access this tool from the following: Ribbon: Drawing > Home > Multi-lines Toolbox: Multi-lines Key-in: JOIN TEE OPEN To Construct an Open Tee Joint Parent topic: Multi-Lines Toolbox