DIY BLAZER (with lining & front pocket) | I tried to make a Blazer suit - Part 1

Welcome or welcome back to my sewing blog!

In today’s post, I’m excited to share with you my experience of making a Blazer. It was my first time trying out this complicated DIY, but the end result was perfect.

I can’t wait to share with you the process and the tips that I learned along the way. I hope you will find it helpful and inspiring.

Let’s get started!

WHAT YOU’LL NEED

2m of cotton khaki fabric
2m of cotton lining fabric
Pattern paper
Sewing machine
Pins
Scissors
Ruler
Long stick

MAKING THE PATTERNS

Here’s the pattern for the project. To get a clear understanding of all the measurements needed for the pattern, watch the video from 0:26.

Remember, you can adjust these measurements to fit your own dimensions!

THE BACK PATTERN

Draw a rectangle with 70 cm length which is the length from the shoulder to the middle of your butt. It's the length of the blazer that you want and 25 cm width which is a quarter of your hip size plus 3 cm.
At one width line which is the top of the blazer, draw a straight line at 2.5 cm outside the rectangle. It's the width of the shoulders.
From this straight line, mark up 7 cm which is a half of the neck of the blazer that you want. Then connect this mark to one end of the width line of the rectangle next to it. After that, draw a curved line based on it to finish the neckline for the back of the blazer.
From one end of the straight line, keep marking up 19 cm which is a half of the shoulder of the blazer that you want. Then draw a 4 cm horizontal line from that mark. It’s one tenth of the length of the shoulder. Then connect the end of this horizontal line to the end of the neckline to finish the shoulder line for the back of the blazer.
Based on the end of the shoulder line, draw another straight line then draw a new straight line 18 cm from that one. It's one by five your bust size. From the new straight line, keep drawing another one 3 cm from it and this will be the bust line of the blazer.
From the top of the length line, draw another straight line at 38 cm which is the length from the shoulder to under your breast and above the belly button. It's right at your waist and this will be the waistline of the blazer.
On the bust line, mark at 23.5 cm which is a quarter of your bust size plus three centimeters. On the waistline, mark at 21.5 cm which is a quarter of your waist size plus 5 cm then connect these marks together and to the end of the other length line to create the sideline of the blazer. Based on this line, draw a curved line to make the sideline smoother.
At the end of the shoulder line, draw a horizontal line down to the second straight line. From the meeting point, mark 2.5 cm inside then connect this mark to the end of the shoulder line. After that, mark at the middle of this line then draw a curved line from the end of the bust line go to the meeting point, this mark, and the end of the shoulder line. This will be the sleeve line of the back blazer.
At the end of the sideline, mark up 1 cm then connect it to the end of the other length line of the rectangle to finish the ending line of the back blazer.
After that, add 1 cm of seam allowance except 3 cm for the ending line and you will have the back pattern of the blazer after cutting.

THE FRONT PATTERN

To make the front pattern copy the back pattern first.
At the sleeve line, instead of 2.5 cm, move inside 3 cm from the meeting point then redraw the sleeve line similar to the way you did with the back pattern.
Because the front pattern will have the button area in the middle, add 2 cm extra at one side of the pattern.
From the end of the shoulder line, add 2 cm extra first then connect it to the end of the waistline which will be the end of the collar of the blazer that you want.
From the top of the collar line, mark inside 10 cm first then draw a perpendicular line from that mark. After that, draw another perpendicular line at 3 cm next to the first one. From the meeting point between the collar line and the second perpendicular line, mark out 8 cm which is the width of the smaller part of the collar that you want.
Connect this mark to the end of the collar line. After that, also connect this mark to the meeting point between the collar line and the third perpendicular line then mark in the middle of that line later.
From the meeting point of the collar line and the first perpendicular line, mark out 10 cm which is the width of the bigger part of the collar that you want. Then connect this mark to the mark at the middle you just made before that.
From the end of the shoulder line, mark 1 cm inside first then draw a perpendicular line from it later. This line will meet the smaller part of the collar at one point.
Check the length of the neckline at the back pattern first, then mark the length on the perpendicular line you just made before that. From this mark, move in 1.5 cm then draw a curved line from it go through the meeting point on the shoulder line to the meeting point between the small and the big part of the collar.
At the end of this line, draw another perpendicular line with a 7 cm length. It's the width of the back collar. Then draw another curved line to make the ending of the big part of the collar.
Cut this part of the collar out of the front pattern then add seam allowance for them. You will have the front pattern of the blazer and the back pattern of the collar.

THE LINING PATTERN

To make the lining inside the blazer, use the front pattern to do it.
At the end of the front pattern, mark 7 cm to inside. At the shoulder line, mark at the middle then connect two marks together.
After that, draw two lines 1 cm outside this line for seam allowance for the lining parts. You will have two patterns for the lining parts of the front blazer

THE SLEEVE PATTERN

Draw two lines cutting each other first.
From the cutting point, mark to the right 15.5 cm which is one by five your bust size minus 2 cm. After that, check the total length of the sleeves at the front and the back pattern first then draw a line from the mark you make before to the straight line with the length is half of the sleeve you just check. Do the same for the other side.
Divide the width of the right part of the horizontal line into three equal parts, then draw a straight line from each mark later.
From the meeting point between the top straight line to two lines next to it, mark up 3 cm and 2cm. 3-cm part will be the front of the sleeve and 2-cm part will be the back of the sleeve.
Draw a curved line based on the meeting points to finish the sleeve line for the sleeve. Make sure the length of this line will be the same with the total length of the sleeve lines at the front and the back pattern.
From the top of the sleeve, measure and mark at 62 cm which is the length of the sleeve that you want. Then draw a straight line through that mark later.
From this mark, mark at 13 cm on 2 sides so the width between two marks will be 26 cm which is the width at the end of the sleeve you want. Then connect these marks to two ends of the sleeve line.
From the meeting point between the top straight line and the line next to it, draw a horizontal line parallel with the middle one. At the other half of the sleeve, mark at a quarter of the line first then draw a horizontal line from that mark in parallel with the middle one.
Cut the pattern into three pieces by the horizontal lines you draw before that.
After cutting, connect two small pieces together and you will have a big part and a small part of the sleeve. Add a 1 cm seam allowance for them. However, add 3-cm seam allowance at 12 cm at the end of the sleeve to create the opening for the sleeve there later.