LOCKED sized correctly

LDD-21 · Laundry / Operations Core

One-line intent

The operational engine — not a residential laundry, a back-of-house system that absorbs daily household friction.

Locked decisions

Open items / engineer review

Cost drivers

2 washer/dryer sets $5–10K · Built-in cabinetry + folding counter $8–18K · Utility sink + plumbing $1.5–3K · Floor drain + waterproof flooring $0.5–1.5K. Total: $15–35K (folded into finish line).

Air-gap concerns

  • Two W/D sets is generous. Verify usage; could reclaim half for storage.
  • Heat-pump vs vented dryer — HPWH slow (90+ min) but seal-tight; vented fast (45 min) but loses warm air.
  • Floor drain at front of washers catches hose failures (not behind dryer).
  • Adjacent main panel + sink + washers = code (GFCI, 30"×36" panel clearance, no panel over sink).
  • Folding counter height matters — 36–38" standing.

Cross-references

← Inputs from

LDD-09 main panel · LDD-10 middle cluster

→ Outputs to

LDD-05 dryer venting · LDD-18 durable cleanable