Bathroom Design & Layout
🚿 Bathroom Layout & Design
Design your bathroom like a professional, avoid costly mistakes, and optimize every square foot.
📐 How to Design a Bathroom Properly (Before Buying)

Bathroom design doesn't start with choosing tiles or a faucet, but with analyzing technical constraints.
Questions to ask BEFORE any purchase:
- Where are the current water inlets? Moving them is expensive.
- Where is the main drain? Slopes must be respected.
- What is the water pressure? Some equipment doesn't work with low pressure.
- Is there a VMC (Controlled Mechanical Ventilation)? Essential to prevent humidity.
- What is the ceiling height? Impacts shower column choices.
Pro tip: Create a technical plan BEFORE choosing your products. This will save you from returns and costly modifications.
🚿 Shower or Bathtub: Making the Right Choice
Choose a shower if:
- ✅ Limited space (less than 5m²)
- ✅ Reduced mobility or elderly people
- ✅ Need to reduce water consumption
- ✅ Simplified maintenance
Choose a bathtub if:
- ✅ Family with young children
- ✅ Sufficient space (minimum 6m²)
- ✅ Seeking comfort and relaxation
- ✅ Resale value (depending on local market)

Compromise: A combined shower-bath works well if you have the space (minimum 1.70m).
📏 Optimizing a Small Bathroom
Field tips to save space:
- Wall-hung toilet: frees up 30cm of floor space, makes cleaning easier
- Walk-in shower: no tray, gives an impression of space
- Wall-mounted vanity unit: visual and practical gain
- Sliding door: saves 80cm of space
- Large mirror: visually enlarges the room
Common mistake: Trying to fit everything in. A well-designed small bathroom is better than a cluttered large one.
❌ The Most Common Design Mistakes
1. Neglecting drainage slopes
A walk-in shower requires a minimum 2% slope. Without it, water stagnates.
2. Forgetting electrical safety zones
Outlets, switches, lighting: everything is regulated according to the distance from the shower/bathtub.
3. Underestimating ventilation
Without effective VMC, you'll have mold in 6 months, even with the best materials.
4. Choosing design over function
Beautiful tiles that are slippery when wet, a stylish but fragile faucet… The field doesn't forgive.
5. Not planning for maintenance
Hard-to-reach joints, impossible-to-descalcify faucets, inaccessible siphon… Think maintenance!
🤝 Need help with your project?
We analyze your current setup and advise you on the feasibility of your project before any purchase.
Our support includes:
- ✓ Technical analysis of your bathroom
- ✓ Validation of your project's feasibility
- ✓ Advice on equipment selection
- ✓ Layout optimization
📚 Related articles
- How to choose a good faucet (beyond design)
- Tiles: what's beautiful VS what lasts
- Buying your equipment online: pitfalls to avoid
💧 Discover our premium selection: GROHE Faucets → | GROHE Buying Guide →