Research-backed reviews · No paid placements · Affiliate disclosure

How ToolGrade Scores Products

Every product we review receives a ToolGrade Score out of 100. Here's exactly how we calculate it.

30%

Performance

Actual vs rated output under real-world load conditions, voltage or pressure stability, runtime efficiency. This is the most weighted category because a product that doesn't perform its core function well fails regardless of other attributes.

25%

Value

Price-to-capability ratio within its price tier. We don't reward lowest price — we reward best return on investment. A $1,100 generator that outlasts three $400 generators scores well on value. A $700 unit with $400 capability scores poorly.

20%

Build & Durability

Frame quality, engine or motor reputation, reported failure rates from owner reviews at significant usage hours, warranty terms, and manufacturer service reputation. Long-term durability matters more than first impressions.

15%

Ease of Use

Starting reliability, control clarity, portability, fuel management, maintenance requirements. A product that works but requires an engineering degree to operate loses points here.

10%

Features

Available outlets, safety features (CO shutoff, GFCI), connectivity (app monitoring, remote start), expandability (parallel capability), and display quality. Features matter — but they're secondary to the above.

Score Interpretation

90–100Best in ClassNear-flawless. We'd recommend it to anyone in its category without qualification.
80–89ExcellentStrong recommendation. Minor tradeoffs that won't matter to most buyers.
70–79GoodSolid pick with meaningful tradeoffs. Right for some buyers, not all.
60–69FairBuyable but you should know the limitations going in.
Below 60Not RecommendedBetter options exist at this price point.
Transparency: ToolGrade does not claim to physically test every product in-house. Scores are based on manufacturer specifications, aggregated owner reviews, and published third-party testing data. We identify the source of each claim within our reviews.