An all-in-one facing is a clean way to finish the neckline and armholes of your garment.

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To create the pattern, you will need the front and back patterns of your bodice (or dress).

In the example, the pattern has been split to create princess panels so there are two front patterns and two back patterns.

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To start, take your front pattern.

If your pattern is split into multiple pieces, like mine, place the patterns together as if they have been sewn.

If your pattern has darts in this area, trace the facing pattern, including the dart, and then eliminate the dart. It is important to have as few design details as possible in the facing, so that it sits flat under the garment.

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Work out how far down the centre front and side seam you would like the facing to run.

The style of garment and the fabric type will govern how long (or short) you want to make it. I like to make quite a sturdy facing, so that it sits smooth and flat and doesn't creep out of the neckline or armhole.

In the example, my facing runs 6cm down the side seam and 10cm down the centre front.

Mark these points on your pattern.

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Draw a smooth line (in roughly this shape) that connects the two points. 

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The section above the line just drawn is the front facing pattern.

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Trace the facing pattern onto a separate piece of paper. Be sure to mark an armhole notch (this will help when sewing the bodice to the facing) and the grainline (which should be the same as the original pattern) before removing the original pattern from underneath.

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Label the pattern and move on to the back.

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Repeat process for the back pattern. 

In the example, my facing pattern ran 18cm down the centre back.

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Check that your patterns match smoothly at the side seam, then add seam allowance (consider how you would like to finish the facing edge - it is commonly overlocked or bound).

Depending on the fabric, you may want to add interfacing to the facing patterns for added stability. Just keep this in mind for when you get to the cutting stage of the project.

What next?