US
CAP

CAP OPHR3-005 Weight Plates

  • Plate
  • 1
  • Cast Iron
  • Black
4.4/ 5 on Amazon247Amazon ratings50+bought last month3.9ProductDome score
Medium confidenceLast refreshed Aug 4, 2026Amazon data + ProductDome analysis · methodology
Best forYou need one 5 pound cast iron plate to fill out a set

A basic 5 pound cast iron plate, useful mainly for topping up an existing set rather than starting one from scratch, with no frills beyond a solid black finish.

View current price on Amazon →

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ProductDome scorecard

How it ranks among the 114 plates we track

3.9/ 5ProductDome scoreMedium confidence
Owner satisfaction · 56% of scorecategory median 4.6★4.4

4.4★ across 247 Amazon ratings, Bayesian-smoothed toward the category average.

Evidence strength · 17% of scorecategory median 235 ratings3.0

247 Amazon ratings, weighted on a log scale so huge counts don't drown everything.

Buyer demand · 11% of score2.3

50+ bought on Amazon last month.

Data quality · 11% of score3.8

Brand identity, imagery, description and spec coverage.

The ProductDome score is separate from the Amazon rating shown above: it combines the Bayesian-smoothed Amazon rating with evidence volume, tracked demand, and data quality across the 114 plates we track - how the scorecard works · full plates data report. Confidence: medium - useful but incomplete evidence.Last refreshed Aug 4, 2026. Data-computed, not a hands-on test. Compiled by the ProductDome Research Team.

Overview

The CAP OPHR3-005 is a single cast iron weight plate weighing 5 pounds, finished in black, sold as one piece rather than a set.

Cast iron is the standard material for basic weight plates, chosen for its density and lower cost compared to rubber-coated or bumper plates.

  • Cast iron material
  • 5 pound weight
  • Black finish
  • Sold individually

Who it's for

Fits anyone needing one 5 pound plate to round out a barbell load or plate-loaded machine. Not suited to buyers wanting a full plate set, since this listing covers a single piece.

Strengths and trade-offs

Drawn from this product's published specifications.

What stands out
  • Cast iron construction for durability
  • Standard 5 pound increment useful for fine-tuning load
What to check first
  • Sold as a single plate, not a set
  • No rubber coating to protect floors

Performance notes

Cast iron plates are dense and hold their shape under repeated loading, though they lack the rubber coating that protects floors and reduces noise on drops.

Specifications

BrandCAP
ModelOPHR3-005
Pieces1
MaterialCast Iron
ColorBlack
Item Weight5 pounds

How it compares

This product against the closest alternatives we track in plates.

ProductAmazon ratingRatingsProductDome score
CAP OPHR3-005 Weight PlatesThis product4.4 / 52473.9 / 5
RitFit Weight Plates for BarbellRITFIT4.8 / 51,5654.4 / 5
EVERYMATE 1.25LB Change Plates Set Weight PlatesEVERYMATE4.8 / 51,4484.4 / 5
JFIT 20-6650-pr Weight PlatesJFIT4.7 / 57774.3 / 5
Yes4All R61J Weight PlatesYES4ALL4.8 / 56054.3 / 5
Frequently asked

Questions about the CAP OPHR3-005

Common buyer questions answered straight from the product spec data - no fluff, no "it depends".

How many plates come in this CAP listing?

One plate, sold individually.

What is the plate made of?

Cast iron.

What weight is this plate?

5 pounds.