Site Measurement for Electrical Installation: Classic or Digital?
A precise site measurement is the foundation of any serious calculation. Digital tools have partly replaced the classic folding-rule approach in recent years — but not everywhere. This overview shows which method is better when.
Classic vs. digital measurement
Classic (folding rule, laser, pen)
- No battery needed, always ready
- No learning curve
- Also usable in dark rooms
- Transfer to the plan error-prone
- Sketches become unreadable later
- Double work (on site + at the office)
Digital (tablet, laser disto, app)
- Direct plan transfer
- Images and notes integrated
- Cloud sync with the office
- Battery dependency
- Light conditions matter
- Learning curve initially
What you need for good measurement
Classic tools
Laser distance meter (e.g. Bosch GLM 50), 2 m folding rule, A4 notepad, pen, camera.
Software / apps
Plan apps with measurement mode (myElectricPlan), Bluetooth disto connection, cloud storage.
Hardware
Tablet with large display (10-12 inches), Bluetooth laser disto, power bank, pen with pressure point.
Extras
Headlamp for dark rooms, tape measure for long distances, magnetic holder for tablet.
Measurement workflow step by step
1. Preparation
Review existing plans, note main dimensions, clarify homeowner's special requests.
2. Capture floor plan
Walk through rooms systematically, outer dimensions first, then inner walls, doors and windows.
3. Document existing installation
Photograph existing sockets, switches, cables and mark in the plan.
4. Special points
Service connection, meter cabinet, junction boxes, chimney, load-bearing walls — document everything.
5. On-site check
Walk through all rooms once with the plan — really captured everything? Forgotten switches cost later.
6. Transfer and backup
Classic: transfer to the digital plan the same day. Digital: check cloud sync.
Avoid typical measurement errors
Estimated, not measured
'Looks like 3 m' usually goes wrong. Always measure — even if it's annoying.
Wall thickness forgotten
Inner and outer walls often differ by 20-30 cm. Distinguish cleanly in the plan.
Heights not captured
Room height, lintel height, sill — important for switch and socket placement.
Existing state not photographed
At the office overview is missing. Better 100 photos too many than too few.
Tips from practice
Use a standard checklist
A measurement checklist prevents forgetting typical points. Example: house service area, meter location, boiler room, reserve points.
Bring the homeowner
Bring the homeowner along — special requests often only surface walking the site.
Plan buffer time
At least 1 h per 100 m², better 1.5 h. Rushed measurements get expensive.
Conclusion: digital when possible, classic when necessary
For new builds and renovations, digital measurement is almost always worthwhile. For small repairs or short on-site visits, classic is enough. A hybrid strategy is usually optimal.
💡 Tip: Invest in a Bluetooth laser disto — time savings vs. folding rule pay off after a few measurements.
Measure directly in the plan
With myElectricPlan you measure directly on the tablet, draw floor plans live, and sync measurement and photos to the cloud.
Measure digitally now