How Big of Tires Can I Fit on My f150? (Biggest Stock Sizes with Examples)

largest tires on stock f150

How big of tires can you fit on a Ford F150? By the time you finish reading this article, you will have a pretty good idea so fasten your seatbelt and let’s go for a ride, shall we?

Americans love their pickup trucks and the Ford F150 in particular. It is one of the all-time best-selling trucks spanning decades. One industry that has really boomed due to the popularity of the pickup truck is the aftermarket sector.

This is largely due to just how many modifications truck owners usually make to their beloved machines. These mods range from subtle ones all the way to all-out makeovers where you won’t be able to recognize the end product.

One of the most popular mods is tires that are changed out for larger or smaller ones depending on the look, feel, or function you are going for. Which size tires can you fit on a Ford F150 truck though? Let’s look at that, shall we?

In short,  The Ford F150 comes with 31.6” P255/70R17 tires on 17-inch wheels out of the factory. The biggest tire you can fit on your Ford F150 without any modifications is 34 inches. You can also fit 32-inch tires on your truck if it has 10-inch wide rims without any issues.

Based on the summary above, you have a high level of flexibility when it comes to the size of tire you can put on there. You will obviously have limitations on the stock option for obvious reasons but the aftermarket offers you a whole lot more when it comes to the things you are able to do.

What Tires Come Stock on Ford F150?

Tires are an essential part of any car. They provide traction and grip for the vehicle, which allows the car to drive safely at higher speeds and in different terrain. At this point, tires come in many different sizes to fit different vehicles.

The tires that come standard with the Ford F150 base model are the 17-inch wheels with P255/70R17 all-terrain tires.

These tires are meant to be able to handle most terrain and weather conditions but it is obviously ideal to have relevant tires for summer or winter as they give better performance. As you go higher in the trim levels though, you will find different tire sizes based on the trim level you opt for.

Biggest Tires on stock f150

The biggest tire size that can be fit on a stock f150 is a 34-inch x 12-inch. However, you could also fit a 32-inch x 10-inch or 33-inch x 11-inch if your truck has enough spare tire/wheel space available. You may need to check with your manufacturer before planning a wheel and tire combination for your pickup.

Purchasing tires can be an overwhelming task. There are many factors to consider while looking for the right set of tires for your car.

You will need to make sure that the new tires fit your car and the desired use of your vehicle. Unlike other car brands, Ford doesn’t have a strict set of guidelines for what size tire you can put on your truck.

The best way to find out is to consult with a tire expert to find out the best solution. The thing you want to be on the lookout for as far as tire size is concerned is your wheelbase, axle, and your rear axle ratio. These will play a huge part in determining the size of tire that is ideal for your F150.

Biggest tires on stock f150 18 inch rims

For a stock f150, the biggest tires on stock 18-inch rims for an f150 you can fit the 265/70/18 or the 275/65/18 tires. The 265 size is 33×11.22 inch and the 275 size is 35×12.5 inches.

When using a tire with a smaller diameter, you can get more mud clearance and ride quality (you will feel it more) than with larger sizes of tire on your truck. These are generally better all-around choices for most drivers in most conditions.

Biggest tires on stock f150 20 inch

For the stock 20 inch rims, the biggest tire you can fit is the 305/50/20 and you can fit 285/50/20 but it will rub on your frame and if you run over a speed bump it will scrape. The 305/50 tires are 35×12.01 inches.

Can I Put Bigger Tires on my Ford F150 Truck Without a Lift?

The answer to this question depends on the type of tires you want to put on your truck. For example, if you want to put larger off-road tires on your truck, then you will need a lift kit.

However, if you are looking for an aesthetic change or want to accommodate larger wheels or tires for better traction in the snow without any other changes, then no lift is required.

The best way to get bigger tires on your F150 without a lift is to call your local tire shop and ask them what they would recommend.

They have great experience in this area and are able to offer the best advice as far as this area is concerned. The things that you need to be mindful of as far wheel size is concerned is whether your axle ratio is able to support that size of tires and if there is enough clearance.

A common issue with bigger tires is that they end up rubbing against the body on sharp turns. You don’t want that.


The size of tires you put on your F150 will depend on several factors as you have seen in this article. Primarily, it boils down to whether you are installing the tires on a stock F150, the trim level, or the mods that have been made to it. Understanding your rear axle ratio and the part it plays in the size of tire you can put on your truck is also key. If you are unsure, you can get advice from local tire dealers on the best options available to you.

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