How do I get WiFi in my metal shed?
Step through the roller door of a Colorbond shed and the signal falls off a cliff.
A metal shed is the hardest WiFi case there is, and it catches people out because the shed can be right next to the house and still be a dead zone. Steel cladding shields the inside from radio signals, so no amount of turning up the router indoors will help.
The fix is simple once you accept it: go around the wall, not through it.
Antenna on the outside
A weatherproof unit on the shed exterior gets a clean signal the steel never touches.
Access point on the inside
A second unit inside spreads that signal to your gear, cabled through one small hole.
Bridge it if it is far
Distant metal sheds add a wireless bridge across the yard, then the same inside/outside trick.
Why metal beats a normal setup
Steel is a near-perfect shield for WiFi. The signal that would happily cross an open yard hits the cladding and mostly bounces off. That is why a metal shed can be closer to the router than the back bedroom and still get nothing. Fighting it from indoors is a losing game.
The inside-outside fix
Mount a small outdoor access point on the shed wall or eave facing the house, so it sees a clean signal. Run one short cable through the wall to a second access point inside. Now the metal is doing you a favour: it keeps outside interference out while your indoor unit blankets the shed. This is the same principle as the general WiFi to a shed approach, just with the wall problem solved first.
When the metal shed is across the block
If the shed is a long way from the house as well as being metal, the across-the-yard distance is its own job. A point to point wireless bridge carries the connection over first, and Long Range WiFi specialises in exactly that. Then the inside-outside trick finishes the job at the shed.
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Common questions
How do I get WiFi in my metal shed?
You stop trying to send the signal through the steel. A metal shed acts like a shield, so the fix is to mount a small outdoor antenna or access point on the outside of the shed, facing the house, and feed the signal to a second unit inside. The wall becomes irrelevant because the WiFi crosses it by cable, not through the metal.
Why is the WiFi so bad in a Colorbond shed?
Colorbond and other steel cladding reflect and absorb WiFi frequencies. It is the same reason your phone drops out inside a big metal shed. Even if the shed is close to the house, the wall itself can wipe out a signal that would otherwise be fine.
Can I just put a normal extender in the metal shed?
Only if it already has some signal to grab, which is the whole problem. An indoor extender inside a metal shed usually has nothing to repeat. You need to get a clean signal to the outside of the shed first, then distribute it inside.
What if the metal shed is far from the house?
Then you combine the two ideas: a point to point wireless bridge carries the internet across the yard to an antenna on the shed, and an access point inside spreads it around. That distance work is what Long Range WiFi handles.