This is a super easy project and it will hardly take 40 minutes to compleate
OK now first thing is first ,select a thick fabric for the top and a matching lining for bottom part, decide about the length and width of the runner according to the size of your dining table and cut a rectangle out of the main fabric and the lining.
measure the exact width of the rectangle.
Now fold one corner of the remaining fabric in such a way that it forms a triangle and the base of the triangle should be exactly the same as the width of the runner.
Cut out this double folded triangle and open it up.
You will get a square, cut this square on the diagonal middle fold line
and you will get two triangles that would be having the base equal to the width of your runner
now pin the triangles to the sides of the runner (write sides together)and sew them up
after joining the triangles to the sides of the rectagle runner iron the seems open and give them a top stitch.
Do exactly the same with the lining part and dont forget to give a top stich on the lining joint too.
Now your runer and your lining should look some thing like this
put the lining over the main fabric (right sides together )pin them up and stitch them around the three sides
leave one side of a triangle open to turn the inside out.
Once the inside is out iron and fold the edges of the opening and close it by a top stitch ,continue this top stitch all around the table runner to give it a more stable look, thats it your runner is all ready .
check out the tutorial about the matching rectangular fabric mats.
i am linking this tutorial to following link parties .