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Tutorials 
Leena's Pattern Drafting Lesson:


Body measurement 
Body measurement + ease 
WAIST CIRCUMFERENCE 
* 
+ 2 cm= 
HIP CIRCUMFERENCE 
* 
+ 4 cm= 
Crotch height 
* 
+ 2 cm= 
OUTSIDE SEAM LENGTH = side seam from waist to floor 
* 

CUFF CIRCUMFERENCE 
* 

Crotch height is measured in the following way. Let the child sit on a bench or a table and measure vertically from his/her waist to the bench/table at the side. Crotch height can also be measured from a pair of old, well fitting pants, crotch height is the difference between the outside and the inside seam of the pants.
All measurements are body measurements. DO NOT ADD ANY EASE when measuring. It is added later in the calculations.
Default measurements for children
It is not an easy task to measure a children or a baby.
Therefore I give here the Scandinavian table measurements for the children.
You can use these or measure your child yourself.
Child's height, 
Waist 
Hip 
Crotch 
Knee 
Cuff 
BABIES, 02 YEARS, HEIGHT 6298 CM 

62 
48 
53 
16.5 

26 
68 
49 
54 
17 

26 
74 
50 
55 
17.5 

26 
80 
51 
56 
18 

26 
86 
52 
57 
18.5 

27 
92 
53 
58 
19 

28 
98 
54 
60 
19.5 

29 
CHILDREN, 314 YEARS, HEIGHT 104146 CM (girls/boys) 

104 
55 
62 
18 
35 
29/26 
110 
56 
64 
18.5 
35.5 
29.5/27 
116 
57 
66 
19 
36 
30/28 
122 
58 
68 
19.5 
36.5 
30.5/29 
128 
59/60 
70 
20 
37 
31/30 
134 
60/62 
73/72 
20.5 
37.5 
31.5/31 
140 
62/64 
76/75 
21 
38 
32 
146 
64/66 
7978 
21.5 
39 
33 
DO THE FOLLOWING CALCULATIONS:
Round the measurements up to the nearest 0.5 cm.

Body measurement 
Divided by 4 
Divided by 8 
Divided by 20 = x 
Waist circumference 
* 
* 


Hip circumference 
* 
* 
* 
* 
Cuff circumference 
* 
* 


Follow the numbers in the picture. All measurements mentioned below are with ease.
From 1 to 2 = Start by drawing a vertical line that corresponds to the outside length of the pants.
3 = Measure down from point 1 on the waist line a distance equal to the crotch height.
4 = Find the point equal to 1/3 crotch height up from the crotch line
5 = Measure up from point 2 a distance of 23 cm.
Draw horizontal lines to the left and to the right from
point
1 = this is the waist line
3 = this is the crotch line
4 = this is the hip line
5 = this is the cuff line
6 = Measure from point 4 to the left on the hip line 1/8 hip circumference  1.5 cm
7 = Measure from point 4 to the right on the hip line 1/8 hip circumference + 1.5cm + 2 cm
8 = Draw a vertical utility line from point 6 down to the crotch line
9 = Draw a vertical line from point 6 up to the waist line
10 = Measure from point 9 to the right 1/4 waist circumference +1cm (this moves the side seam 1 cm to the back) + 3cm (this is for the waist pleat)
11= Measure from point 8 to the left on the crotch line "x" (calculated above) + 1 cm; distance from point 8 to 11 is the length of the front crotch curve. Draw the curve between points 6 and 11 as in the picture.
12 = Measure from point 5 to the left and to the right 1/4 cuff  0.75 cm (the seams move 0.75 cm to the front)
Draft the front pattern according to the picture along points 9  6  11  12  5  12  7  10  1. Curve a bit outwards between points 7 and 10. Measure from point 1 to the right 3 cm and mark the waist pleat here.
Draft the back pattern on top of the front pattern.
13 = Measure from point 4 up "x" +2 cm (distance between points 4 and 13 is marked in the picture with "a"). "X" is calculated above.
14= Measure from point 13 to the left "x" (distance between points 13 and 14 is marked in the picture with "b")
15 = Trace the hip point of the back pant by drawing a line which equals to the length of 1/4 hip circumference + 2 cm from point 14 and meets the front hip line.
16 = The back center line from point 14 to 16 forms a right angle against the hip line (1415).
17 = The back waist line from point 16 to 17 forms a right angle against the back center line (1416). Move a triangular ruler up the back center line to find points 16 and 17. Point 17 is on the waist line. Distance between points 16 and 17 is 1/4 waist 1 cm (this moves the side seams 1 cm to the back) + 2 cm (this is for the back waist dart).
18 = Measure from point 11 to the left "x" +1 cm
19 = measure from the front cuff points (12) to the left and to the right 1.5 cm.
Draft the back pattern according to the picture along points 16  14  11  18  19  5  19  15  17. Find the point midway between points 16 and 17 and draw a dart there. The dart is 2 cm wide and 8 cm deep. The dart apex is on a line which forms a straight angle against the hip line.
Draw the back grain line: it is in the same place where it is on the front piece.
Check that all the curved lines curve smoothly.
Pants for children over 3 years differ from the babies' pants because children over 3 years do not need diapers and their figure is somewhat different compared to the figure of the babies.
The differences are mentioned here.
ADD EASE TO THE WAIST CIRCUMFERENCE: 1 cm
ADD EASE TO THE HIP CIRCUMFERENCE: 4 cm
DO NOT ADD EASE TO THE CROTCH HEIGHT
Do not add any ease to other measurements.
The measurements between the points which are different compared with those of the babies' pants are:
FRONT:
19 = 1/8 waist circumference  0.5 cm
110 = 1/8 waist circumference + 0.5 cm + 1 cm + 2.5 cm; raise side seam
point with 1 cm
47 = 1/8 hip circumference +1.5 cm + 1.5 cm
811 = x
BACK:
a = x  0.5 cm
b = x + 1 cm
1415 = 1/4 hip circumference
1617 = 1/4 waist circumference  1 cm + 1.5 cm; raise side seam point
with 1 cm
1118 = x
Calculate the place of the knee to curve the legs inwards there. Do it with help of the inside seam length of the pants. The inside seam length is the outside seam length subtracted with the crotch height.
The place for the knee is
1/2 inside seam length + 1/10 inside seam length measured from the floor.
The width of the leg at the knee is drafted the same way as at the cuff i.e.
 at the front the desired finished leg circumference at
the knee divided by 2  1.5 cm i.e. 1/4 knee circumference  0.75 cm to
the left and to the right from the center line
 at the back the desired finished leg circumference at the knee divided
by 2 + 1.5 cm i.e. 1/4 knee circumference + 0.75 cm to the left and to
the right from the center line.
The width of the front pleat is 2.5 cm to the right from the front center line. The width of the back dart is 1.5 cm and the depth of the back dart is 7 cm.
Sewing instructions are also included on this web site. To view them click here .