Confined Spaces - includes job site poster

This information is provided by: The Center for Construction Research and Training (CPWR)


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Many construction sites have enclosed areas where work is done. These areas can create hazards such as lack of oxygen, explosive or toxic gases, electrical shock and materials falling from above. Many of these hazards can kill or injure workers.Many would-be rescuers have died entering a confined space.

Preventing Injuries from Confined Spaces

•    Treat all confined spaces as hazardous.    

•    Don’t  enter a  space  until  the air  has  been  tested  for  oxygen, flammable vapors and toxic chemicals. 

•    Ensure  that  structures  are  safe  from  collapse  prior  to  entering confined spaces

•    Use  personal  protective  equipment  that  is  appropriate  for  the  hazards.

•    Make  sure  a  safe  and  dependable  method  of  communication is available between the person entering the  space  and  the  work  partner.

•    Exit  the  space  immediately  if  an  unsafe  condition  develops.

•    Provide  for  rescue  and  practice  realistic  drills.