# LDD-14 · Workshop + Equipment Room

> **Status:** 🟢 LOCKED.

## One-line intent

Cleaner, quieter, more efficient shop — equipment isolated, workflow direct, lift access integrated.

## Why this matters

A workshop with its loud equipment relocated to an isolated room is dramatically more pleasant to use than the typical "everything in one space" home shop. This is a smart operational decision that pays back every workday.

## Locked decisions

**Equipment room**

- ~10' × 13' (per LDD-13)
- Contains dust collection + compressor
- Purpose: noise isolation + system hub

**Systems**

- Dust: direct wall pass-through to workshop (short duct run, no chase)
- Air: overhead distribution

**Workshop**

- Central work zone (~23' × 16')
- Direct path to lift via 7' transport spine

## Open items / requires engineer review

- **Dust collection sizing** — 2HP, 3HP, 5HP cyclone? Depends on number of tools and CFM demand.
- **Compressor sizing** — 60-gal vertical? 80-gal? Pump CFM @ 90 PSI?
- **Pneumatic distribution** to workshop tools — quick-disconnect points designed in now.
- **Dust collection drops** at each tool location — design now, not later.
- **Outlet count + amperage** along workshop walls — typical mistake is undercounting; 5+ 20A outlets per wall is not excessive.
- **Lighting in workshop** — task lighting is critical; LDD-08 framework says "task lighting" layer but the workshop needs specifics: 80+ CRI minimum, 50–80 fc on bench surface.
- **Compressed air pipe material** — copper, black iron, or aluminum (e.g., RapidAir). Aluminum is easier, more expensive.
- **Workshop heating control** — separate from the main heating? If the workshop is intermittent-use, you don't want full comfort heat 24/7.

## Cross-references

- ← [LDD-13 south bay](13-south-bay.md) — layout context.
- ← [LDD-02 radiant](02-radiant-slab.md) — workshop slab strategy (comfort vs mid-density).
- ← [LDD-05 HVAC](05-hvac-system.md) — workshop mini-split.
- → [LDD-15 mech room](15-mechanical-room.md) — different room, separate function.

## Cost drivers

- **Dust collection** (3HP cyclone + ducting + drops + filtration): $4–10K.
- **Compressor** (80-gal 2-stage + dryer + filter + drops): $3–6K.
- **Pneumatic distribution** (aluminum or copper, 100–200 lf with QD fittings): $2–5K.
- **Acoustic isolation of equipment room** (double-stud, sound-rated door, sealed wall): $3–6K.
- **Workshop lighting + outlets + dedicated circuits**: $6–12K.
- **Wall finishes** (durable plywood or steel liner — workshop walls take abuse): $4–8K.

**Likely-case rollup: $25–50K for workshop + equipment buildout** (separate from shell + slab). Budgeted within workshop/lift line in waterfall.

## Air-gap concerns

1. **Dust pass-through is a fire/smoke risk if not detailed.** Dust collection ducts can propagate fire. The pass-through wall between equipment room and workshop needs a sealed, fire-rated detail or an external dust collector vent that doesn't pierce the rated wall.
2. **Compressor heat in equipment room.** A running compressor dumps ~3–5K BTU/hr into the room. If equipment room has maintenance-density radiant + a small mini-split, it can overheat. Plan for an exhaust fan + makeup air, or a dedicated cooling head.
3. **Pneumatic distribution oversight.** Designing pneumatic drops now is 5x cheaper than retrofitting through finished walls. Make a tool-by-tool map.
4. **Dust collector noise still bleeds through the wall.** Even with double-stud, a 5HP cyclone is loud. Plan to also acoustic-isolate the compressor pump (rubber feet, isolation matt).
5. **Workshop floor cleanability vs warmth.** The LDD-24 floor spec says workshop is polished concrete; comfortable for short work, hard on the body for long work. Plan for anti-fatigue mats at bench locations.

## Diagram

(see [south bay plan](../../diagrams/05-south-bay-plan.svg) — equipment room top-left, workshop main, transport spine to lift)

## Status

🟢 **Green — strategy is operationally smart.** Detailed equipment specs needed before electrical/HVAC trades start.