The phrase "straight seam" refers to a type of stitching or joining where two pieces of fabric or material are sewn together in a straight line, creating a neat and seamless connection between them. Full definition
I'm not the greatest sewer myself — I prefer straight seams and a sturdy fabric. (tallgirlsfashion.no)
Don't you think it would be faster to just run that simple straight seam through the sewing machine instead of messing around with the glue? (theletteredcottage.net)
At first I wondered why you went with straight seams instead of staggering the planks, but once I saw the rollover shot with the curtains I got it! (theletteredcottage.net)