Chamfer Butt Joints

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4 things to do before taping drywall

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Locate all butt joints, which are seams where two non-tapered (cut) ends of drywall sheets meet. Using a sharp utility knife, carefully cut a 45-degree bevel (chamfer) along the full length of these butt joints. This creates a small V-shaped groove in the joint, which provides a larger area for the joint compound to adhere to and helps to prevent visible humps or ridges in the finished wall.

Goal: Create a V-groove for improved joint compound adhesion and a flatter finish

Tools and materials

Utility Knife — Cutting the 45-degree bevel into the butt joints

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Next, remove any loose paper or rough edges. Next, you want to find your butt joints. When two butt ends of the drywall meet, it's a butt joint. You want to go ahead and you want to 45 those. Get them all nice and flat. So, just take your knife, get a sharp blade, and just run it down the edge. All right, make sure that you 45 your butt joints just like this. Before you tape, you're going to want to prefill all your large gaps. So, your

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