# Tongue and Groove ## 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](https://ms-kb.msd.unimelb.edu.au/machine-workshop/machinery-materials/equipment/untitled/router-table) but it is also possible to use the [table saw](https://ms-kb.msd.unimelb.edu.au/machine-workshop/machinery-materials/equipment/untitled/table-saw). ## What steps do I take? Watch this video of making a tongue and groove with dedicated router bits. {% embed url="" %}