What the source establishes
Heimtextil's September 2026 forecast describes tactile surfaces as a design theme. It offers a reason to look closely at texture in context, but gives no workmanship specification for piping.
At the cutting table
Cut two corner specimens from the same swatch. Keep the top panel fixed and change only the piping strip direction. Photograph the seam from the front and obliquely under the same lamp.
The buying decision
Heimtextil's September 2026 forecast describes tactile surfaces as a design theme. It offers a reason to look closely at texture in context, but gives no workmanship specification for piping.
A pile that looks even on a flat card may show a light border when it curves around cord. Buyers can judge whether that border is desirable before ordering.
Mark the approved piping direction on the production sample and ask the maker to flag any extra cutting allowance.