The aim of this Barbell Buying Guide is to help you choose the barbell that’s best suited for you and your needs.

Olympic lifting, powerlifting, Strongman, CrossFit or general gym use – all of these types of lifting require slightly different types of weight lifting bars. Let us put you on the right path so that you choose the right weight lifting bar for you!

What we’ll cover in this Barbell Buying Guide:

  • The differences between men’s, women’s and youth bars.
  • The features to consider when buying a barbell.
  • The differences between bars for Olympic lifting, powerlifting and general use.
  • Some frequently asked questions to help you choose.

The Difference Between Men’s, Women’s and Youth Weight Lifting Bar’s

Girls, don’t be offended here - these are Olympic competition standards. The most common bar that you’ll see in gyms is a 20kg men’s bar. However, most manufacturers will also produce a women’s 15kg bar and some may produce a youth bar too.

The easiest way to distinguish between these is the lack of knurling in the centre of the female bar. The specs of each bar can be found below:

Men’s Barbells

Length: 2.2 metres (86.4 inches)
Diameter: 28mm (Olympic) or 29mm (Powerlifting)
Weight: 20kg / 44lbs.

Women's Barbells

Length: 2.01 metres (79.2 inches)
Diameter: 25mm
Weight: 15kg / 33lbs

Youth Barbells

Length: 1.7 meters (60-67 inches)
Diameter: 25mm
Weight: 10kg / 22lbs

Features to Consider When Buying a Barbell

Whip of the Bar

The “whip” is the common term for the ends of the bar bouncing at the end of a repetition, or a phase of a lift. The lifter will be stationary, but the ends of the bar will be moving.

Experienced lifters can use this during certain transitions in their lifts. For example, between the clean and jerk they can bounce the bar off their chest and propel the bar up by using the momentum of the bend coming upward into the jerk position.

The main factors in determining the amount of whip are the material from which the bar is made, and the diameter of the bar.

The thickness of the plates can also effect the whip that the user can generate. For example, bumper plates, spreading the load on the collar of the bar, will make the bar behave in a completely different to the way it will behave with calibrated weight plates, which take up less collar space.

Barbell Sleeves

The sleeves make up the part of the barbell that will determine how much spin the bar will have. Spin will be permitted via the use of either bearings or bushings.

Bushings are placed between the shaft and the sleeve. They offer low friction and are most commonly made of brass to ensure longevity.

Bearings offer a faster, smoother and quieter spin. They are usually made from high quality small needles or metal balls that roll within the sleeve.

Most powerlifting or general purpose bars will use bushings in the sleeves of the barbell. Bearings are usually found in high-end and more expensive Olympic weight lifting bars.

barbell sleeve

 Barbell Strength

Barbell strength can be determined using two measurements – the yield strength and the tensile strength.

Yield strength is the amount of weight it takes to permanently bend and deform the bar. The yield strength is tested statically by simply adding weight to each end of the barbell.

As mentioned earlier, some whip (elastic deformation) may be desirable as this allows the weight plates to stay on the ground for a longer period of time during the lift.

Tensile Strength is the breaking point of the barbell. This is rated in pounds per square inch (PSI). Higher-end manufacturers tend to produce weight lifting bars with either a 190,000 or 215,000 PSI rating. Our latest range of Olympic Bars are extra durable and have a tensile strength of 216,200 PSI, exceeding the industry standard.

165,000 PSI is a good minimum to look for when purchasing a new weight lifting barbell. Generally anything over 180,000 PSI is a decent barbell.

Good specification to look at a bar’s material property and manufacturing quality. It might not show you how it feels to lift with but it can be used to infer the quality of it’s production. 

Load Capacity

Load is determined from the length of the sleeve (common for most IPF or IWF approved bars) which can be longer on barbells manufactured for niche powerlifting federations.

The biggest determining factor on load capacity is the width of the plate. Competition powerlifting weight plates, for example, are extra thin when compared to cast iron gym plates or much smaller when compared to weightlifting bumper plates.  This is due to the much greater loads handled in the powerlifting disciplines.

Olympic Weight lifting bars require less load. This is because as the overall load potential is much less (sub 270 kg for Clean and Jerk) and the barbells must be wider and designed to absorb shock as the plates are dropped from overhead. These help to protect the barbell as well.

Finish on the Bar and Sleeves

The finish on a barbell serves a number of purposes. It adds to the “feel” of the bar in the hands, aid (or hinder) grip, and can help protect against rusting.

Bare steel bars offer a nice grip with a natural feel. However, bare steel is more likely to rust so will need more regular maintenance. We've set up this guide to barbell maintenance to help you take care of your bars in the long term.

Black oxide bars offer more oxidation protection than bare steel and do not require as much maintenance as bare steel.

barbell finish

Zinc finish protects the barbell even more from rust than the steel and black oxide finish. However, they can quickly lose their sheen, so more regular maintenance is required to keep them looking their best.

Chrome finish bars are the most expensive finish, but offers the best protection from rusting. Depending on the quality, chrome finish bars can feel slightly slippery compared to bare steel. However, the higher-end barbells tend to have excellent knurling to compensate for this.

Stainless steel offers a similar, some say even better, feeling to the barbell than bare steel. Oxidation protection is very similar to the chrome finish. Stainless steel is usually found on the most high-end weight lifting bars.

knurling on a weight bar


Knurling is made from two sets of diagonal grooves cut into the barbell, usually going in opposite directions. This forms tiny diamond shapes, which dig into the skin on your hands when you hold the bar and assist with grip.

The width and depth of these grooves will determine how “aggressive” the knurling is on the barbell.

More aggressive knurling is primarily to assist with heavy deadlifts, where grip failure is the most likely.

The further in the knurling comes, the narrower you can effectively grip the bar. Weight lifting bars designed for powerlifting tend to have more knurling towards the centre of the bar for the use of sumo lifters who grip inside of what would be a normal grip for a conventional deadlift or clean.

A portion of knurling in the centre of the bar (known as central knurling) helps with grip on your back during squats. Both IWF (International Weightlifting Federation) and the IPF (International Powerlifting Federation) specify that a men’s barbell should have this.

Some specialised squat bars have a very wide central knurling to allow for use by larger men.

As mentioned earlier, the knurling is less aggressive on men’s Olympic bars, as when they catch a clean they don’t want aggressive knurling at the neck, but it is still there to assist with squats.

A woman’s weight lifting bar has no centre knurling. If central knurling is required during squats then using a male bar is preferable. The wider bar will also make squatting more comfortable on the upper back.

What Type of Knurling Suits Which Lifter?

The type of knurling comes down to preference. However, generally, lifters with smaller hands, male or female, may favour more aggressive knurling as their grip is already at a disadvantage.

Weight lifters with larger hands may choose whichever feels most comfortable or offers the most grip support.


What Type of Barbells are Available?

Now that you have a better understanding of the features to look for when purchasing your weight lifting bar, let's take a closer look at the different types of barbell.

Remember: When looking to buy a barbell, the type of lifting and the exercises you will be doing ultimately determines the type of barbell you will purchase.

Olympic Weight Lifting Bars

Olympic weight lifting barbells are designed for the two main Olympic lifts - the snatch, and clean & jerk.

Olympic bars are usually smaller in diameter, but only by 1mm. However, this makes a difference to your grip strength.

The knurling on Olympic weight lifting  bars is not as aggressive as other weight lifting bars. There must be enough to provide a good grip, but not so much that it rips your hands apart when the bar spins in your hand during the catch phases of the lifts.

Knurling is marked out for the snatch lift and is further apart than a power bar which is marked out for the bench press.

Olympic bars also require collars that spin. The spin on the bar deadens the rotational force of the barbell during the pull and catch phases of an Olympic lift (during snatch and clean) or the dip and drive (jerk or push press) reducing the impact on your wrists and shoulders.

Olympic bars also require more bend and flexibility. This is sometimes called the whip (stored elastic energy), which helps during the initial pull and catch phase of the lift to avoid unnecessary damage to your collarbones.

Bars which have achieved IWF accreditation are widely recognised as the best on the market (with the most accurate tolerance in relation to the bar's weight) and only these types of bar are sanctioned for use in international competition. View IWF accredited bars.

There are IWF compliant bars that offer the same high quality as accredited bars, but come without the heavy price tag. Our latest range of Olympic Weight Lifting Bars offers a selection of IWF and IPL compliant bars - browse the range here.

olympic barbell

Powerlifting Bars

Weight lifting barbells for powerlifting are designed for the big three lifting exercises: Squat, Bench Press and Deadlift.

Knurling on powerlifting bars is much more aggressive to help the lifter grip the bar during heavier attempts.

The knurling comes in further than an Olympic bar to allow for narrower grips during deadlifts and a more secure squat.

Powerlifting barbells are rigid, stiff bars, and therefore do not deform, when compared to Olympic bars, under load (or whip). This means they would be a poor choice for Olympic Lifts - you will feel the difference if you catch a clean slightly wrong with a power bar. It sometimes feels like your collar bones have been hit with a sledgehammer!

Specialised deadlifting bars are available that are longer and have more whip. This means the end plates are left on the ground for longer, which allows the lifter to get into a stronger position before the full load comes off the floor.

Hybrid, Training & Multipurpose Weight Lifting Bars

Hybrid weightlifting bars are useful for gyms, CrossFit boxes and facilities that offer both Olympic weight lifting and Powerlifting.

Hybrid weight lifting barbells are great for beginner and intermediate weight lifters as they have the characteristics of both a powerlifting and Olympic weight lifting bar.

Hybrid barbells usually have two sets of fine knurling markings to accommodate for both Olympic lifting and power lifting standards.

A Few Other Types of Barbell

In addition to the specialist powerlifting and weightlifting bars we've discussed there are, of course a whole range of other types of barbells available to buy for your home or gym. Here we've listed just a few of the most popular ones along with their most common uses.

Technique Bars

The final barbell we'll mention for Olympic weightlifting is the technique bar. As the name suggests this isn't a competition bar by any means. This is a lightweight bar that's used as a training tool for technique work that requires a something that weighs more than a broom handle or PVC pipe, but not as heavy as a standard Olympic barbell.

Technique bars are usually made from aluminium to ensure they are lightweight - normally ranging from 5kg to 12 or 13kg.

Hex Trap Bar

The Hex Bar (or Trap bar) is an interesting barbell variation that is most commonly used in the gym for deadlifting as an alternative to the traditional straight bar deadlift. Many people prefer the trap bar deadlift because due to the load being placed in line with the user rather than off centre it puts less stress on the lumbar curve especially at the start of the movement. This makes it a common choice for users with back issues. Hex bars are normally 6ft or 7ft long and weigh around 25kg and 30kg respectively.

EZ-Curl Bar

The EZ Curl bar is a shorter barbell variation which tends to be quite light weight and has a distinctive jagged shape. The advantages of this type of bar tend to be felt by users who experience discomfort in their wrists when using a straight bar for curls (the angle of the EZ Curl bar lets them grip the bar in a more natural position).

Fixed Barbells

Fixed barbells are more commonly found in a health club, high street gym setting than in any sports performance, weightlifting or powerlifting facility. These are a durable convenience item that doesn't require any set-up time like adding collars or plates. Fixed barbells are generally around 110mm long and range in weights from 5kg up to 45kg.


Choosing the right type of weight lifting barbell can be very challenging. There are many different features and types of bar to consider when making your final decision.

We hope that this barbell buying guide provides all the information and details required to make an informed choice to ensure you buy the right type of weight lifting bar for your needs.

If you have any questions or require more advice please call 0333 2000 750 to speak to one of our fitness equipment advisers.

Contributors to this article include:

Lawrence Judd, Shredded by Science.

Marc Keys, Cast Iron Strength, Edinburgh Rugby.

John Clark, Fit3sixty, Strongman.