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Understanding Pressure Washer PSI Chart [The Details & Applications]

When it comes to investing in a pressure washer, most buyers have numerous common questions. These may include what is a good PSI for a pressure washer, what is GPM, what PSI should i use to clean the concrete, or even can power washing damage concrete.

Well, all these questions relate to one aspect: the required precise pressure to remove all debris and dirt. The users need to know the amount of pressure is required for an electric pressure washer, a multi-duty pressure washer, or a gas pressure washer respectively, as each type of pressure washer may not be the same.

That’s why it is important to know how to refer to pressure washer PSI chart, to understand how each different pressure level caters to your needs.

Understanding PSI (Pounds per Square Inch)

PSI is the unit that allows measuring pressure that a power washer delivers for cleansing. The amount of PSI required tends to differ according to what is to be cleaned. For instance, the PSI value for car cleaning should be less than the PSI or pressure needed for cleaning those stubborn floor stains. The exact or a range of PSI required is what the pressure washer PSI chart reveals. 

A 1,500 PSI unit might indicate a high pressure to a homeowner for cleaning decks and siding. This pressure is more than a garden hose. On the contrary, this pressure is too less to clean parking areas stained with tar. It would need somewhere around 4,000 and 7,000 PSI. 

Usually, gas pressure washers will have a higher value of PSI, and is recommended for users to get the gas type if you want to use it for heavy-duty cleaning tasks.

Overview of the Pressure Washer PSI Chart

Keeping the aforementioned facts in mind, here is a small replica of how a PSI chart would look.



1000 – 1900

For home use; for cleaning most household and locomotive cleaning tasks with a handheld model working on electricity

2000 – 2900

For heavier residential tasks; available as electric or gas versions

3000 – 6900

For professional users such as contractors; for commercial and industrial tasks; for use with gas

7000 – 50,000

For industrial and engineering jobs involving big equipment and structures such as edifices and bridges

Look for an online or offline pressure washer PSI chart to find the right pressure required. Accordingly, you should choose an apt washer model. It is of utmost importance to select the right pressure washer so that you get for what you pay.

Source: Home Improvement Stack Exchange

Things to Consider Before Buying a Pressure Washer

pressure washer psi chart

Pressure tends to affect the cleaning capability to a large extent. Keeping this in mind, it is futile to invest in a 5,000 PSI unit for just cleaning the car or furniture. Even worse is the fact that such a high-pressure gadget can end up damaging the vehicle’s polish or the wall’s paint.

As a tip, do also consider some of the terminology such as Gallons Per Minute (GPM) measurement to compute Cleaning Units (CU), the cleaning efficiency. The higher the product of GPM and PSI, the higher the cleaning efficiency.

Read this article to find out what are our top choices of electric pressure washers.


It is important to choose the right pressure using the pressure washer PSI chart. Otherwise, you will end up with the least effective pressure washer. The chart will guide you in choosing the right PSI range you require for your cleaning jobs.

    Verner Ellen

    Hi, my name is Verner Ellen. I am a homebody whose interest is in getting the best home tools and equipments to help with the the everyday house chores. I also love fitness, cooking and grilling. Maintaining a clean and comfortable home is my lifelong passion.

    Cleaning Services

    Very nice information! Thanks for the share


      There is certainly a lot to learn about this issue. I love all of the points you have made.

    Michael Foley

    Thanks! Will certainly help me pick the right unit based on my needs.

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