`operations/material-and-unit-rules.md`

29 lines
---
id: material-and-unit-rules
type: operations
tags: [material, units, hard-rule, roll, width, acoustical]
aliases: ["acoustical is not vinyl", "double roll rule", "grasscloth width"]
sources: [sources/material-rules.md, sources/acoustical-detail.md]
updated: 2026-07-17
---
# Material & unit rules

**Summary:** Acoustical is fiber not vinyl; GRS grasscloth is 36" only; the private-label roll lines keep a "2 and 2" double-roll minimum.

## Facts
- **Acoustical wallcoverings are polyester/olefin FIBER, NOT Type II vinyl.** PDP
  Material = `custom.material` metafield. (e.g. Sidmouth = Momentum "Silence",
  50% Poly / 50% PP.) <!-- src: material-rules --> <!-- src: acoustical-detail -->
  - 29 ACTIVE acoustical products corrected 2026-07-12 (sidmouth-material-fix).
    Still mislabeled as vinyl and needing correction: Ellington (Goat Hair)
    plus ~5 other patterns. <!-- src: acoustical-detail -->
- **GRS grasscloth SKUs are 36" wide ONLY:** canonical width
  `36" Wide (trim to 34")`. <!-- src: material-rules -->
- **DOUBLE-ROLL RULE ("2 and 2"):** the private-label double-roll lines
  (Thibaut, Malibu Wallpaper/WallQuest, Malibu Walls/Brewster, York) keep a
  2-roll minimum and D/R length ≈ 2× S/R length. <!-- src: material-rules -->

## Related
- [[private-label-branding]] — the double-roll lines are these PL brands.
- [[material-routing]] — how naturals route to GRS/PWV/Cork by material.