Classic Single Breasted Blazer Pattern

This type of garment is of second degree, therefore it needs a greater ease allowance. The ease allowance can vary according to the fabric and the shape desired.

Instructions for using the pattern calculator:
* Add your measurements in the yellow cells from the "MEASUREMENTS" tab. The basic measurements needed for the pattern should be made by using the sketch from the same sheet and the measurement code (ex. A, B, C, etc.)
* Press button "Calculate"
* In the "RESULTS/INSTRUCTIONS" tab, the dimensions for the blocks will be computed automatically.
By following the steps from "RESULTS/INSTRUCTIONS" and the drawing you will be easily able to make your own pattern. Good luck!

Measurements	Code	Value [cm]	Allowance	Value [cm]
		FILL IN
Body height:	A
Chest circumference:	Y
Bust circumference:	B		6÷12
Waist circumference:	D		6÷12
Hip circumference:	E		6÷12
Back length:	M
Front length:	S
Hip depth:	N
Back width:	F		0÷1.6
Shoulder width:	Z		0÷1.6
Bust height:	L
Breast distance:	T		0÷2
Garment mesurements
Blazer length:
Measured segments
Back neckline (N-N2):
Lapel breack line L-L1:

Line	Value [cm]	Instructions
		Back
0		Square down and right from point 0.
0-F0	69.0	Blazer length, square right.
0-1	51.5	Square down untill intersecting finishing line and mark point F1.
0-N	2.3	Back neckline depth.
0-S	4.5	Square right approximately 2/3 0-1.
0-B	23.8	Square right untill intersecting 1-F1 and mark point B1.
0-W0	42.7	Square right until intersecting 1-F1 and mark point W1.
W0-H0	18.6	Square across until intersecting 1-F1 and mark point H1.
0-N2	7.5	With a curve join points N-N2
0-2	19.0	Square down and mark points B3.
B-B2	24.8	Square down and mark point F2.
S-S3	21.0	Shoulder length, join points N2-S31.
S3-S31	0.5	For shoulder pad, square right as much as shoulder line from point S.
B3-3	5.0	Square right 0.8 cm from point 3 and mark point A3.
A3-A31	0.5	With a curve draw the armhole joining the points S31-A3, A31-B2.
A-B2	17.6
W0-W	2.0	Square down and mark point F. Join points A-W-F.
W-W3	15.0	Square down from W3 and mark point F3. With a curve join points A31-W3.
a	2.0
F3	0.5	Mark two points around F3, 0.5 cm each side.
		With a curve join points A3, a, F3+0.5cm and A31, a, F3+0.5cm
		Front
1-4	2.0
4-N1	8.0
4-5	18.0	Square down and mark point B5, W5 and F5.
B5-6	5.0
6-A5	1.0	Square down from point A5 and mark point 7.
A5-A51	0.5
4-8	3.0
8-N7	7.5
N7-S5	N2-S3
N7-S51	N2-S31
4-B11	26.5	Square left.
B11-B61	11.0	Square down and mark point W6.
B61-9	2.0
b	2.0
F5	0.5	Mark two points around F3, 0.5 cm each side.
		With a curve join points A5, b, F5+0.5cm and A51, b, F5+0.5cm.
W1-W11	2.0
W11-L1	10.0
N7-L	1.5
W6-P	5.0	Pocket position.
P-P1	2.0
P1-P2	15.0	Pocket opening measurement.
c	1.5	Front dart.By opening the dart, the side seam from point B6 untill P1-P2 line (dotted line) it's moving to the left as you can see in the drawing.
		Collar
		Extend up lapel break line, L-L1.
L-C		Square across.
C-C1	1.5	Join C1 to point N7.
C1-C2	7.5	Square down the same measurement as line C1-N7.
L-10	8.3
10-11	4.0
11-L2	10.0	Join L2 to N1. Use a curve to connect points L2 to L1.
L2-L3	4.0
N7-C3	C1-C2
L3-C4	4.0	Connect points C2-C3-C4.
C3-12	1.5	Connect points C2-C3-C4.
		Copy the back collar pattern N7-C1-C2-C3 and rotate it around point N7 untill line N7-C3 overlaps N7-12.
N7-E	4.0
W1-E1	5.0
F1-E2	5.0
		Sleeve
		Two-Piece Sleeve Pattern here.