The success of your pattern drafting will depend very greatly on the accuracy of your measurements. The measurements may be taken over a thin waist, preferably with set-in sleeves. It is difficult to take the measurements accurately over a waist made with kimono sleeves, but if such a waist is worn when measurements are taken the shoulder seam and armhole should be indicated with a row of pins. Locate waist line by pinning a piece of tape, or a tape measure around the waist.
The following measurements are necessary in order to draft the shirt waist pattern illustrated:
Neck. A close measurement around the lower part of the neck.
Shoulder. The measurement from the base of the neck to the end of the shoulder.
Depth of Armhole. Locate the line for this measurement by pinning a tape measure around the body, close under the arms.
For front depth of armhole, measure from the base of the front of the neck to the top edge of the tape measure. Be careful that this measurement is not too long; it should be about 4" to 5 1/2".
For the back measurement, measure from bone at base of neck to top edge of tape measure. This measurement should be longer than the front measurement.
Bust. An easy measurement across the fullest part of the bust with the tape measure placed about V below the armhole and elevated slightly in the back (stand behind the person to take the measurement); add 3" for fullness.
The Back Bust. Measurement from one under-arm seam to the other across the back.
The Front Bust. The difference between the entire bust measurement and the back bust measurement.
Under Arm. Measurement from close under the arm down to the waist line indicated by the bottom edge of the tape measure.
Length of Front. Measurements from base of neck in front to waist line as indicated by the bottom edge of the tape measure.
The Length of the Back. The measurement from the large bone at the back of the neck to the waist line indicated by the bottom edge of the tape measure.
Width of Chest. Measurement made 2" below the base of the neck across the front of the body from the place where one arm joins the body to the same place on the other side.
Waist Measure. A tight measurement around the waist.