A group chat for one job. Make a room, print the QR, stick it in the shed — everyone scans it and
they are in. Nobody installs anything, nobody hands over a phone number, and nobody has to be added
to a group by an admin who is on leave.
Read this before you use it. Anyone who has the room code can read and post — that is the whole
security on it. So treat it like a whiteboard in the crib room, not a private message.
No names of injured people, no incident details, no personal information, no photos of paperwork.
If it matters, it belongs in the site diary or an incident report, not here.
Name the job
Your name
Already been given a code?
Why you cannot pick your own code. A room called SITE1 or RIVERSIDE would be found by anyone
having a guess, and the crew would never know. The code is generated so it cannot be stumbled onto.
Rooms go quiet and delete themselves after a week with no messages.
Room code — share this, it is the key
Nothing yet. Say something.
Not a record. Messages here are not evidence, not a site diary, and not a handover.
They are capped at the last 200 and the whole room disappears a week after it goes quiet.
Anything that has to survive belongs in a controlled document.
Site chat
Scan to join the crew chat for this job. No app. No account. Nothing to install.
Room code
Or go to obrasonsite.com.au/site-chat and enter the code.
Anyone with this code can read and post. Do not put personal details, incident information or
anyone’s medical or injury details in the chat. It is a noticeboard, not a record.
The room deletes itself a week after the last message.
The things that do need to be a record
Chat is for “the crane is down, go to level 6 instead”.
The SWMS, the permits, the prestarts and the diary are the ones that get asked for afterwards.
This is a practical site-management tool. It is not legal, engineering or regulatory advice and does not guarantee compliance or a satisfactory inspection outcome. Requirements may vary by jurisdiction, project, contract and circumstances.
Want a person to look at it?
The tools above are free and yours to use. When you need the paperwork behind them reviewed by someone who has run sites, Obras HSE Services is a live consulting business in south-east Queensland.
SWMS review service — a marked-up review showing what is missing and why it matters.
