> For the complete documentation index, see [llms.txt](https://ms-kb.msd.unimelb.edu.au/machine-workshop/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://ms-kb.msd.unimelb.edu.au/machine-workshop/making/step-by-step/joining/tongue-+-groove.md). # Tongue and Groove This article will cover what is a tongue and groove joint, why use this joint, and one way of making the joint. ## What is a Tongue and Groove joint? A tongue and groove joint consists of a protruding tongue from one board that fits into a corresponding groove in another board. It is often used in flooring or timber panelling when you have a lot of pieces next to each other and you want them to be aligned. ![Figure 1. Tongue and Groove Flooring. Designer: Unknown](https://1044287416-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-M3JlcKYAsodrf6BU0RY%2F-MA4ZE8fuwkfjdTW1zmv%2F-MA4_UnmLwvXBbuMZOvR%2F157194634-56a49f463df78cf772834e9f.jpg?alt=media\&token=fd206ef6-f15b-4f8d-9cac-e6c20270e67e) ## What do I need to make it? The best machine for making a tongue and groove is the [router table](/machine-workshop/spaces/machine-workshop/equipment/untitled/router-table.md) but it is also possible to use the [table saw](/machine-workshop/spaces/machine-workshop/equipment/untitled/table-saw.md). ## What steps do I take? Watch this video of making a tongue and groove with dedicated router bits. {% embed url="" %}