Layout Overview
Bus tubs enter from the FOH through the self-closing swing door, land on the soiled drainboard, work through the three-compartment sink (wash → rinse → sanitize), onto the clean drainboard, then load into the dishwasher.
| # | Slot | Allocated | Notes |
|---|---|---|---|
| 1 | FOH-facing swing door (east wall) | — | Self-closing, push-plate, viewport, kick-down — Bali wood slab |
| 2 | Soiled drainboard (NE corner) | 18″ | Landing for incoming bus tubs |
| 3 | 3-compartment sink (wash · rinse · sanitize) | 54″ | Three 18″ bowls with floor sink under |
| 4 | Clean drainboard | 18″ | Clean side, exits west to dishwasher |
| 5 | Dishwasher (NW corner) | 24″ | High-temp UC — plates and Sunday brunch |
| 6 | Hand sink (west wall) | 15″ | NC code, dedicated handwashing only |
| 7 | Mop sink (SW corner) | 24″ | Floor-mount with floor drain integrated |
| 8 | Hot water heater + plumbing rough-in | — | Sized for 3-comp + dishwasher + hand sink combined load |
Equipment Specifications
Self-closing swing door hardware
Slot 1Door is millwork · hardware specified separately · NC code: door must self-close to maintain humidity separation
Recommended — Bommer 7012 spring hinge pair (commercial-grade)
| Model | Bommer 7012 self-closing spring hinge, 4″ × 4″, satin chrome · pair (2 hinges) $250 |
|---|---|
| Dimensions | 4″ × 4″ mortise hinge with adjustable spring tension. Two per door minimum; three for a heavy slab. Grade 1 commercial. |
| Why this one | Spring hinges are the standard self-closing solution — simpler than hydraulic closers, no maintenance, hold their tension for 10+ years. Bommer is the canonical brand. The GC’s hardware sub will know the part number. |
Push-plate, viewport, kick-down
Recommended — Don-Jo PP-3070 push-plate · Don-Jo viewport · Glynn-Johnson FB-50 kick-down hold-open
| Models | Don-Jo PP-3070 (4″ × 16″ stainless push-plate) · Don-Jo VLF-1004 (4″ × 12″ viewport with safety glass) · Glynn-Johnson FB-50 magnetic floor hold-open |
|---|---|
| Price (est.) | Push-plate $25–40 · viewport $80–140 · kick-down $90–160 · bundle ~$200–340 |
| Why this one | All three are commodity items from the same hardware supplier the GC will use for the rest of the door package. Specify them upfront so they’re on the door schedule and don’t get value-engineered out. |
Soiled drainboard & table for soiled dishes
Slot 2A single 18″ stainless drainboard sits on the NE corner where bus tubs land off the FOH door. This is normally fabricated as part of the 3-comp sink unit (one drainboard left, one drainboard right) — buying them separately is more expensive and creates seam issues at the floor sink. Recommendation: spec the 3-comp with both drainboards integrated.
Note
If you buy the drainboards separately, expect $200–400 each for an 18″ × 24″ stainless wall-mount drainboard from Eagle Group, John Boos, or Advance Tabco. But the integrated 3-comp-with-drainboards approach is the right call — it’s the standard configuration for restaurant warewashing.
3-compartment sink with integrated drainboards
Slot 390″ overall · 18″ + 18″ + 18″ + 18″ + 18″ · NC Food Code 15A NCAC 18A .2600 · three-bowl wash–rinse–sanitize required
Recommended — Eagle Group 314-18-3-18-R, 90″ 3-comp with dual 18″ drainboards
| Model | Eagle Group 314-18-3-18 (or equivalent: John Boos 3B18244-2D18, Advance Tabco 9-3-54-18RL) |
|---|---|
| Price (est.) | $1,800–2,600 |
| Dimensions | 90″ W × 24″ D × 43.75″ H. Three 18″ × 18″ × 12″-deep bowls, plus 18″ × 24″ left drainboard and 18″ × 24″ right drainboard. 16-gauge type-304 stainless. Galvanized legs with adjustable plastic feet. Deck-mounted faucet hole (faucet sold separately, ~$150–250). |
| Why this one | Standard commercial three-compartment sink at the right size for a 60-seat operation with brunch service. 12″-deep bowls handle plates, sheet pans from the chocolate prep, and bus tubs without sloshing. The integrated drainboards on both sides absorb Slots 2 and 4 from the layout, keeping the unit as one welded piece (no seam at the floor sink, no leakage path). |
Note
The faucet is a separate buy — spec a swing-spout deck-mounted commercial faucet (T&S Brass B-0231 or Krowne 16-150L, ~$180–280). Pre-rinse spray attachment is optional but recommended for the dishwasher rack pre-clean step; add another $200–350 for a wall-mounted pre-rinse like the T&S B-0133-ADF12.
High-temp undercounter dishwasher
Slot 524″ allocated · NW corner of wash room · NC Food Code: high-temp sanitize (180°F final rinse) OR low-temp chemical sanitize
Recommended — CMA-180UC Energy Mizer high-temp undercounter dishwasher
| Model | CMA Dishmachines 180UC (180°F hot-water sanitize, built-in booster) |
|---|---|
| Price (est.) | $4,200–5,400 |
| Dimensions | 24″ W × 26″ D × 35″ H. 30 racks/hour (~600 dishes/hr at full load). Built-in Safe-T-Temp booster heater (70°F rise). 19¾″ × 19¾″ rack accommodates plates, sheet trays, and full hotel pans. ENERGY STAR, NSF. 208/230V single-phase, 30A circuit. Requires hot water hookup (110°F minimum incoming) and direct drain to floor sink with 1″ air gap. |
| Why this one | The 180UC is the back-of-house counterpart to the front-bar 181GW. Same brand, same parts ecosystem, same regional service network in NC — your dish tech only needs to know one machine. 30 racks/hour is sized correctly for Sunday brunch peak (the heaviest dishwashing day) with comfortable headroom for Wed–Sat plate-and-board service. |
Note
Fagor CO-504W, Hobart LXeR, and CMA L-1X16 are all real alternatives. The Hobart is the legacy industry standard but priced ~30% above the CMA. Fagor is competitive on price but has a thinner US service network. CMA wins the trade at this scale.
Wall-mount hand sink
Slot 615″ wide × 17″ front-to-back · west wall · NC Food Code 15A NCAC 18A .2810 · dedicated handwashing sink required
Recommended — Regency 17″ × 15″ wall-mounted hand sink with gooseneck faucet
| Model | Regency 600HSWALLG (or equivalent: Eagle Group HSA-10-FOX, Advance Tabco 7-PS-25); ~$250 |
|---|---|
| Dimensions | 17″ W × 15″ D × 13″ H. 14″ × 10″ × 5″-deep bowl. 8″ wall-mount gooseneck faucet included. Wall mount with brackets included. NSF. |
| Why this one | Wall-mount construction, NSF-rated, gooseneck faucet for soap-bottle clearance, no countertop required. Half the price of a Krowne drop-in and indistinguishable in function once it’s installed. |
Floor-mount mop sink
Slot 724″ × 24″ footprint · SW corner with integrated floor drain · NC Food Code: mop sink (or equivalent service sink) required for back-of-house
Recommended — Regency 24″ × 24″ × 12″ molded mop sink with faucet
| Model | Regency molded fiberglass mop sink with wall-mount service faucet, vacuum breaker, and bucket hook; ~$500 |
|---|---|
| Dimensions | 24″ W × 24″ D × 12″ H basin (sets directly on floor). 3″ drain. Wall-mount service faucet included with vacuum breaker and rubber hose adapter. Mop hanger bracket included. |
| Why this one | Molded fiberglass is the right material — chemical-resistant, won’t rust, easy to clean, lower cost than stainless for a BOH item nobody will see. Floor mount eliminates legs and gives you a flat clean perimeter for floor mopping. |
Note
Stainless steel mop sinks (Advance Tabco 9-OP-28, ~$600–900) are an upgrade if the floor finish is a polished concrete that needs to look intentional rather than utilitarian. For a hidden corner of a back-of-house, the molded fiberglass is the right answer.
Plumbing rough-in & commercial hot water heater
Slot 8Located in BOH service area · NC plumbing code: sized to peak demand · ASME/UL listed
Recommended — A.O. Smith BTH-120, 60-gal commercial gas water heater
| Model | A.O. Smith BTH-120 (or equivalent: Bradford White DS-65T, Rheem GP65) |
|---|---|
| Price (est.) | $2,800–3,800 (unit) · $1,500–2,800 (install: gas line, vent, drain, expansion tank) |
| Dimensions | 60-gallon tank, 120,000 BTU/hr input, 96% thermal efficiency, ~140 GPH first-hour rating. Power-vented gas. ~26″ diameter × 64″ tall. |
| Why this one | Sized one tier above Vol. II’s 40–50 gal estimate because brunch service (eggs, dishes) overlaps with chocolate-prep cleanup hot-water demand and the 3-comp recovery time matters when the dishwasher is running too. The bump from 50 to 60 gallons is ~$500 of capital for a comfortable buffer at peak. |
Note
Other plumbing rough-in items belong in the GC’s plumbing scope, not here, but worth budgeting separately: floor sink centered under the 3-comp ($350–500 fixture, ~$800–1,200 install), dishwasher floor sink with 1″ air gap (~$300–500 install), and indirect drain runs from the chocolate prep room hand sink. Expect ~$3,500–6,000 in plumbing rough-in beyond the water heater itself; this lives in the construction budget, not the equipment budget.
Wash Room Buy-List Summary
Pricing here is the recommended option only, at dealer-discounted ranges. Total assumes you go with every recommended pick.
| # | Slot | Recommended product | Est. price |
|---|---|---|---|
| 1 | Self-closing swing door hardware | Bommer 7012 + Don-Jo + Glynn-Johnson bundle | $245–420 |
| 2 | Soiled drainboard (NE corner) | Integrated with Slot 3 | incl. |
| 3 | 3-compartment sink with dual drainboards | Eagle Group 314-18-3-18-R + T&S faucet + pre-rinse | $2,130–3,230 |
| 4 | Clean drainboard | Integrated with Slot 3 | incl. |
| 5 | Dishwasher (24″ UC high-temp) | CMA-180UC Energy Mizer | $4,200–5,400 |
| 6 | Hand sink (15″ wall-mount) | Regency 600HSWALLG | $140–220 |
| 7 | Mop sink (24″ × 24″ floor-mount) | Regency molded fiberglass with faucet | $280–420 |
| 8 | Hot water heater (60-gal commercial gas) | A.O. Smith BTH-120 + install | $4,300–6,600 |
| Subtotal (low–high) | $11,295–16,290 | ||
Wash-room subtotal sits comfortably inside Vol. II §12’s $15,000–22,000 wash-room equipment line. The headroom in that line accounts for the plumbing rough-in items (floor sinks, indirect drains, faucet upgrades) that aren’t in the equipment buy-list above — those live in the GC’s plumbing scope at ~$3,500–6,000.
Items to Confirm Before Placing Orders
- Schedule the Durham County Environmental Health plan review before committing to surfaces and sink layout. Bring the layout schematic, the specs for both hand sinks, the mop sink, the 3-comp, the dishwasher, and confirmation of indirect-drain setups for the floor sinks.
- Confirm the 60-gallon water heater sizing with a NC-licensed plumber against the actual combined demand of the 3-comp + dishwasher + hand sinks.
- Confirm with the GC and electrical sub: dedicated 208/230V/30A circuit for the dishwasher, standard 115V outlets at every other equipment location.
- Confirm with the GC and plumbing sub: floor sinks under the 3-comp and dishwasher (two locations, each with 1″ air gap indirect drain).