Floor Plan Survey
Floor Plan Survey turns a room into a coverage map made from real measured throughput — not a signal-strength guess.
You add a room, then walk it and tap where you are standing. Each tap runs a short test between the Wireless Toolbox and the phone or laptop in your hand, and colours that spot. As you measure more spots, the colours blend into a map of the whole room.
How the floor plan map is measured
Most Wi-Fi floor plans colour the map by signal strength, which is only a guess at speed. This one sends real data to your phone at every spot you tap and records what actually arrived.
Your phone and the Wireless Toolbox are both on your own Wi-Fi, so the data travels through your own access point. The Wireless Toolbox's own Wi-Fi link is part of every reading, but the Wireless Toolbox stays in one place, so it affects every spot the same way.
Green (strong) and yellow (medium) spots are fine. Red (poor) spots are the ones worth fixing.
Because the Wireless Toolbox's own Wi-Fi link is part of every reading, readings top out at about 100 Mbit/s even where your Wi-Fi is much faster. That does not affect finding weak spots, but do not compare these numbers with a speed test or another tool.
Between taps, the colour is an average of the nearest readings, weighted by how close each one is, and it fades where no tap is nearby. The coloured area shows where you measured, not how far your Wi-Fi reaches.
It shows where coverage is weak. It cannot tell why a spot is slow.
What you need
A phone or laptop with a browser, and your own Wi-Fi network with its password. No app to install. Put the Wireless Toolbox beside your router and leave it there for the whole survey, so the map shows the path your internet takes.
Getting onto your Wi-Fi
Floor Plan Survey measures your Wi-Fi, so both the Wireless Toolbox and the phone in your hand have to be on it. When it is first switched on, the Wireless Toolbox has its own network, “Toolbox”. The button beside Floor Plan Survey on the menu tells you what to do next:
| The button reads | What to do |
|---|---|
| Set local network | Tap it, choose your Wi-Fi network and enter its password. This tells the Wireless Toolbox which network is yours. |
| Connect to “your network”, then browse to http://toolbox.local | This is an instruction, not a button. In your phone's or computer's own Wi-Fi settings, join that network. Then browse to http://toolbox.local. The Wireless Toolbox follows you onto your network about 15 seconds after you leave the “Toolbox” network. |
| Start | The Wireless Toolbox is on your network. Tap Start. |
When the tool opens, it shows one status line while its measuring radio joins your network — Connecting to “your network”… with a seconds counter — and then the survey.
Making a map
- Add a room. Give it a name and its length and width, in feet or metres. The plan is drawn to scale. Rooms are kept for next time.
- Select the room, walk to a spot, and tap the plan where you are standing. The Wireless Toolbox sends data to your phone over your Wi-Fi and counts how much arrived. A tap takes about ten seconds. Stand still until it finishes.
- Repeat around the room. Each spot gets a coloured dot, and between your taps the map blends the nearby readings into a coloured area.
Undo point removes the last spot (or cancels one that is still measuring). Reset room clears the room's spots.
Reading the map
Three bands, by measured speed. The number above each dot is the speed actually measured there.
| Colour | Meaning | Measured |
|---|---|---|
| Strong | Fine. | 60 Mbit/s or more |
| Medium | Fine. | 20 to 60 Mbit/s |
| Poor | Worth fixing. | Under 20 Mbit/s, or the connection stopped for more than 1.5 seconds while measuring |
The tool exists to find the spots worth fixing, so the line that matters is the one between yellow and red. A spot whose connection stopped is red whatever its average speed — a call there would freeze — so a red dot can carry a respectable number.
The ring around a dot
The ring shows how steadily data flowed during the measurement: blue for the part where it was flowing, red for the part where it stopped. A complete blue ring is a spot where data never stopped. If a spot's readout says the connection stopped, tap the spot again to check — a phone moving between access points can cause a one-off stop.
Small orange notes under a dot
- A figure in ms — the spot is slow to respond.
- no reply, or a count such as 7/20 lost — replies went missing. Lost replies break calls sooner than a slow response does.
- ↑ with a number, or ↑ none — a weak upload, or one that could not get going.
The panel under the plan gives the numbers behind the newest spot in words.
Getting a map you can trust
- Take two or three taps at each spot. If they disagree, the spot is unstable, which is itself worth knowing.
- If a tap says the spot was not measured, take it again. The Wireless Toolbox refuses to colour a spot it could not measure properly rather than invent a number.
- Use one device, in one browser tab. Only one page can measure at a time. If another page has the Wireless Toolbox, press Use this page and tap again — but that ends whatever the other page was measuring.
- Leave the Wireless Toolbox where it is for the whole survey.
Keeping the map
Room names and sizes are kept. The measured spots are cleared when you leave the tool, so use Save as PDF before you go. The saved page carries the map and its legend.
Menu (⋮)
- Save as PDF — see below.
- About — version information.
The ☰ button (top-left) returns to the Wireless Toolbox menu.
Save as PDF
The ⋮ menu (top-right) has Save as PDF. It captures the map and its legend and writes one file to your device’s Downloads folder, named with the tool and a timestamp, e.g. FloorPlanSurvey 2026-08-13 14.32.05.pdf. Every save is timestamped, so nothing is overwritten.