What Is Tongue and Groove Flooring?

What is the process called "tongue and groove" joinery as it applies to wood, laminate, and luxury vinyl flooring? It secures two boards together.

Tongue and Groove, Doug Fir, Vertical Grain, Flooring, Sub floor

Should I choose Tongue and Groove or Click fitting flooring

Click Lock Floors Vs Tongue And Groove Floors - Online Floor Store

Tongue & Groove flooring installation on underlay. Start to Finish

Subflooring vs Joists vs Underlayment Difference

10 wood working joinery techniques - part 1 — Kaltimber - Timber merchant - Flooring shop

What Is Tongue and Groove Flooring?

Laminate Flooring Pros and Cons

Tongue and Groove vs Click Wood Flooring

Solid Oak Floor Board Tongue & Groove Prime American White Oak Flooring

Cypress Pine Flooring Solid 98 x 19 Tongue and Groove

Everything You Need to Know About Tongue and Groove Flooring

What to Know Before You Install Tongue and Groove Flooring — Bob Vila

Laminate Flooring Pros and Cons

Best Flooring for Seniors & The Elderly