Cast Cast Iron Olympic 2.5LB Weight Plates Review
Our verdict
A highly rated 12-piece set of cast iron 2.5 lb Olympic plates at an exceptional price. The 4.8-star average from 881 reviews is one of the strongest ratings in this category, making this a standout value pick.
Check price on AmazonBest for
Lifters who want a bulk supply of 2.5 lb Olympic cast iron plates for micro-loading and do not want to buy small quantities repeatedly.
Skip if
You need rubber or vinyl coating, heavier plates for primary loading, or plates with a standard 1-inch bore.
- Material Cast Iron
- Weight 2.5 Pounds
- Color 2.5LB
- Pieces 12
- Priced 70% below the category median ($57.46 across 58 tracked models)
Our scorecard
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Owner rating4.8/5
4.8 average across 881 owner ratings
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Popularity4.1/5
881 owner reviews, more than most models here
The overall score is owner satisfaction weighted by how many reviews back it, so a high rating from few reviews counts for less. The bars below show where this model stands against the other home gym and fitness equipment we track in this category on price, popularity and size. Context, not marks against it, and our read of the data, not a lab test.
Overview
The Cast Iron Olympic 2.5LB plates come as a 12-piece set priced at $16.99. Cast iron at the Olympic 2-inch standard gives you plates that fit full-size power bars and barbells, making these useful for any serious home gym setup.
The 4.8-star rating from 881 reviews is standout for this price range. A 12-piece set gives you six matched pairs of 2.5 lb plates, enough to support extended micro-loading progressions across multiple exercises.
Bare cast iron requires a bit of maintenance in humid environments, but the per-plate cost at this price makes these one of the better deals in this segment. Gymso is an Amazon Associate and earns from qualifying purchases.
Pros
- 4.8-star rating from 881 reviews, among the highest in this category
- 12-piece set at $16.99 offers excellent value per plate
- Olympic 2-inch center fits standard power bars and barbells
- Cast iron construction is durable and dense
Cons
- Bare cast iron is susceptible to oxidation without maintenance
- No rubber coating means noise on contact and no floor protection
Specifications
| Material | Cast Iron |
|---|---|
| Weight | 2.5 Pounds |
| Color | 2.5LB |
| Pieces | 12 |
Performance notes
Twelve 2.5 lb plates give you six pairs, which is more than most lifters need for standard progressive overload. The Olympic 2-inch center is the right fit for most home gym barbells. The 4.8-star rating across nearly 900 reviews signals that weight accuracy and quality control are consistently strong.
What buyers say
881 reviews at 4.8 stars is a high-confidence signal. Buyers frequently mention the value of getting 12 plates at this price and note that the plates feel solid and fit their bars correctly. Some buyers add a light rust-preventative coating as a precaution.
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Frequently asked questions
Is the item weight 2.5 lbs per plate or for the whole set?
The data lists item weight as 2.5 lbs. Verify on the product page whether that is the weight per plate or the total for all 12.
Do these fit Olympic bars?
Yes, the listing specifies an Olympic 2-inch center, which fits standard Olympic barbells and power bars.