It is called firefighting equipment steel cabinet. :)

Most firefighting equipment can get through the gate if there is a fire. Should some quipment not fit, gate opening will be made larger.

It depends on the gate. Many gate installers are aware of fire regulations and will not install the gate if the equipment can't fit through.

well it depends on what equipment we are useing. Like SCBA(self contained breathing apperatis) is used to supply oxygen to the firefighter in a fire or HAZMAT situation. There is a lot of equipment we use.

Firefighting equipment is technical equipment designed to rescue people and protect valuable goods and natural resources from fire. Fire-fighting equipment includes fire-extinguishers, fire-alarm systems, hands-free extractors (HFE), and many more. Alike fire-extinguishers and fire-alarm systems, the Hands-Free Extractor’s simple design and compact storage make it a convenient product to use while having a fire.

Firefighting is a job about fighting fires it says it in the name