A welt seam is a seam that is pressed open and then is cut on one of the sides and then they are sewn together. This is done so that the width of the material is lessened.
There is no standard width.
There is no standard width of a kitchen countertop! After saying that 25" is the usual kitchen countertop width to fit a 24" kitchen base cabinet.
A slot seam is very simple. First baste a plain seam together. (A plain seam is simply two pieces of fabric sew together. You need to make sure that the seam is at least a half an inch wide.Second, press open the seam along its full length.Third, cut a strip of fabric as long as the entire seam and as wide as the now open seam width. This means it will be twice the width of seam.Fourth, pin or paste the strip of fabric to the opened seam, ensuring that the strip sits directly over the center of the opened seam.Fifth, turn the fabric so that the strip is underneath and you can sew from the 'finished' or right side of the project. Sew a quarter inch on both sides of the seam line.Finally, remove your basting. You have made a slot seam.
it can be any width
39 inch is the standard width of any door of house. 36 is the standard width (3 feet).
Standard width (with no riggings): 24 1/2"
the standard is 5/8
standard width should be 2'' feet for comfortabl working.
If you are working with a standard pattern for leisure wear summer shorts, a simple straight stitch seam will be good enough. If you are making sports shorts, that will require a stronger finish, I suggest a flat fell seam.
The height of and interior wall (the ceiling) is 8ft. The width is up to you. There is no standard...
8 feet width is the standard in the US