Guide
How to load a barbell.
Heaviest plates go on first, closest to the bar.
Slide the heaviest plate all the way to the inside of the sleeve — right up against the bar shaft — then add lighter plates descending outward. Big plates innermost, small plates outermost. This isn't a style choice: keeping the heavy plates near the center of the sleeve reduces how much the bar flexes and whips, keeps the load stable when you re-rack, and leaves the smaller plates where they're easiest to grab when you're adding or stripping weight between sets.
For a typical work set the order is: heaviest plate first, then descending plates, then the collar last. If you're mixing bumpers and iron, the bumper (the thicker, wider plate) still goes innermost — thickness doesn't change the rule.
Put collars on every set.
Collars are not just for heavy singles. Plates walk outward during reps — especially bumpers, which flex and bounce — and a plate sliding off mid-set turns a controlled lift into a balance problem. Spring collars take two seconds; locking collars even less. Get in the habit of collaring everything, including the empty-bar warm-up, and you'll never be the person chasing a plate across the platform.
Load and unload evenly — never strip one side fully.
This is the rule that matters most. A bar resting in a rack with plates on only one side is a seesaw waiting to happen: if the loaded side carries roughly 135 lb (61 kg) or more while the other side is bare, the loaded end can tip, swing down, and crash to the floor — taking the rack with it. It's one of the most common gym accidents, and it's entirely avoidable.
The fix: alternate sides as you strip plates, one plate per side at a time. Same when loading: add a plate to one side, then the other, so the bar never sits lopsided with heavy weight on a single end.
The symmetry check before you lift.
Before every work set — particularly after plate changes between sets, when mistakes creep in — take three seconds and look down the bar from one end. Both sides should mirror each other: the same plates, in the same order, with collars snug on both ends. If the ends don't match, something's wrong. Fix it before you unrack, not during the set.
Worked example: 225 lb on a 45 lb bar.
225 lb total, 45 lb Olympic bar
Subtract the bar: 225 − 45 = 180. Split per side: 180 ÷ 2 = 90 lb per side → 2 × 45 lb plates per side. Loading order per side: 45 first (innermost), 45 second, collar last. Unloading: collar off, strip one 45 per side, alternating, then the remaining 45 per side.
Unloading order is the reverse.
When the set's done: collar off first, then remove the outermost (lightest) plate from one side, then the same plate from the other side, and work inward — alternating sides the whole way down. Don't fully strip one side until the other side is also down to nothing but the bar. Once you've done it a few times, the rhythm becomes automatic: load heavy-to-light from the inside out, unload light-to-heavy alternating sides.
Common questions.
Which plate goes on the bar first?
The heaviest plate goes on first, closest to the bar. Slide it all the way to the inside of the sleeve, then add lighter plates descending outward, and finish with a collar. That order keeps the load stable and the bar balanced.
Do I really need collars for light warm-up sets?
Yes. Plates can walk outward on warm-up reps too, and one plate sliding off a light bar still changes the balance mid-set. Collars take two seconds to put on — use them every set, not just heavy ones.
Why can't I just strip all the plates off one side?
Because an unevenly unloaded bar can flip. If one side still carries 135 lb or more while the other side is bare, the loaded end can swing down off the rack and crash to the floor — a classic gym accident. Unload both sides one plate at a time, alternating.
How do I know both sides are loaded evenly before I lift?
Do a quick symmetry check before every work set: same plates, in the same order, on both sides, collars snug. If the two ends don't mirror each other, fix it before you unrack.