Construction worker killed in accident on Perth building site

A 19-year-old man has died after he was struck in the head with a door while on a building site in Perth's southern suburbs.

Nathaniel Good was working on a residential development in North Coogee when the accident occurred around 9am Monday.

He was lowering an entry ramp when a door made of heavy steel and timber to fall on him.

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Police said emergency services were on scene quickly but could not save the man.

"A lot of the workers are quite upset, as you'd imagine," Inspector Vic Hussey said.

"He received CPR at the scene, there was a lot of work to attempt to revive him, but to no avail unfortunately."

Work stopped immediately on the site and a full investigation is currently underway.

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In a statement, the company overseeing the project Mr Good was working on said it was devastated to learn of the incident.

"We are devastated by the events that took place today on a site adjoining one of our development projects in North Coogee," M/Construction director Michael Read said.

"Our thoughts go to the family of the deceased."

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Mr Good was an employee of a subcontracted business that was employed to perform a specific role on the site.

"M/Construction maintains the highest standards of onsite safety and we are doing everything possible to support WorkSafe and relevant authorities as they investigate the incident," Mr Read said.