# Question: How do I calculate how many fire extinguishers I need?

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## How many fire extinguishers do you need per square Metre?

As a general rule one 13A extinguisher covers 200 square meters. However, the BS 5306-8 2012 update recommends that each storey with a floor area less than or equal to 400m² should have at least 2 extinguishers, with a minimum combined fire rating of 26A.

## How many fire extinguishers are required on a 30 foot boat?

Depending on the size of your boat you may need more than one. Boats less than 26′ have to have at least one B-1 fire extinguisher on board. Boats 26′-40′ need to have at least two B-1 fire extinguishers on board.

## What is the standard distance between fire extinguishers?

The employer shall distribute portable fire extinguishers for use by employees on Class A fires so that the travel distance for employees to any extinguisher is 75 feet (22.9 m) or less.

## How do you calculate the area of a fire extinguisher?

The calculation can be simplified by applying the rule of thumb that one 13A extinguisher covers 200 square metres of floor area. To calculate how many 13A extinguishers are required, divide the floor area by 200, and round up.

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## How many fire extinguishers do I need UK?

UK fire extinguisher standards recommend that you should have a minimum of two ‘Class A’ extinguishers on every storey of the building. Class A fire extinguishers are those which put out wood or paper fires, also known as ‘carbinaceous’ fires. So you need at least two of any of the above on each floor.

## What does the letter B mean on a B1 fire extinguisher indicate?

Because gasoline fires are the most common type of boat fire, marine-rated Class B fire extinguishers are the class required on most boats. The number after the B, for example a B1 or B2 extinguisher, indicates the capacity of the extinguisher.

## What is AB 11 fire extinguisher?

Class B: Flammable Liquids-Gasoline, oil, grease, acetone (includes flammable gases).

## What is the difference between 5BC and 10bc fire extinguisher?

For instance, the most commonly carried unit, the 10 BC, which contains 2.75 pounds of dry chemical fire suppressant, is rated “twice as effective” as the 5BC, which has two pounds of chemical, in fighting fuel and/or electrical fires.

## How many fire extinguishers does OSHA require?

NFPA recommends one 2-A fire extinguisher for every 3,000 square feet. OSHA requires employees to have access to an extinguisher within 75 feet. Employees should have access to a fire extinguisher within either 30 or 50 feet, depending on the hazard in question and the rating of the extinguisher (see below).