Principles of Kitchen and Bathroom Design
(A quick‑reference guide for students, designers, and homeowners)
| Principle | Kitchen | Bathroom |
|---|---|---|
| Work Triangle / Zones | • Cooking zone (stove, oven) • Preparation zone (counter, sink) • Cleaning zone (dishwasher, sink) Keep the three points within 12‑18 ft total distance for efficient movement. |
• Wet zone (shower/bath, tub) • Dry zone (vanity, toilet) • Storage zone (linen, medicine cabinet) Separate wet and dry zones to control moisture and improve safety. |
| Clearances | • Minimum 36‑48 in between countertops and appliances. • Aisle width ≥ 42 in (≥ 48 in for high‑traffic homes). |
• Minimum 30‑in clearance in front of the toilet and vanity. • Shower/tub entry ≥ 36 in wide; wheelchair‑accessible ≥ 48 in. |
| Flow & Circulation | • Avoid “dead‑end” pathways; the triangle should be a smooth loop. • Keep traffic paths away from the main work triangle. |
• Position the door so it opens away from the vanity and does not swing into the shower. • Keep the toilet out of direct sight from the door when possible (privacy). |
Define Primary Functions
Create Functional Zones
Consider Accessibility
| Aspect | Kitchen | Bathroom |
|---|---|---|
| Counter Height | Standard 36 in; island may be 42 in for bar‑seating. | Vanity height 32‑34 in; comfort height 36‑38 in for wheelchair users. |
| Reach Zones | • Primary (0‑24 in) – easy reach for daily items. • Secondary (24‑48 in) – less‑frequent items. • Back zone (48‑72 in) – storage, rarely used items. |
Same three‑zone concept applied to vanity drawers, medicine cabinet, and linen closet. |
| Lighting Placement | • Task lighting directly above work surfaces (1500–3000 lux). • Ambient lighting for overall ambience. |
• Bright, shadow‑free vanity lighting (1200–2000 lux). • Soft ambient lighting for relaxation (e.g., around tub). |
| Safety | • Slip‑resistant flooring. • Rounded countertop edges. |
• Slip‑resistant tile, floor‑level shower entry, anti‑scald valves. |
| Category | Kitchen | Bathroom |
|---|---|---|
| Countertops | • Granite, quartz, solid surface, wood (buttressed with seal |