Gas Chainsaw Buying Guide
The short answer
Choose a gas chainsaw by bar length, because the bar decides the largest wood you can cut. A 12-inch bar handles branches and small firewood; a 16-inch bar covers most home trees; and an 18-20 inch bar is for larger logs and land clearing. Match the engine power to the bar length so the saw cuts without bogging.
Bar length: the cut size rule
The usable cut is shorter than the bar length, because the engine housing and chain cover sit behind the bar. A 12-inch bar cuts roughly 10 inches of wood, a 16-inch bar cuts about 14 inches, and an 18-20 inch bar handles 16-18 inch logs. Choose the bar by the thickest wood you regularly cut, not the occasional monster log.
| Bar length | Usable cut | Engine size | Best for |
|---|---|---|---|
| 12 inch | ~10 inch | 25.4-40 cc | Branches, brush, small firewood |
| 16 inch | ~14 inch | 40-52 cc | Home trees, medium logs |
| 18-20 inch | ~16-18 inch | 52-62 cc | Large logs, land clearing |
Engine power: match cc to the bar
The engine displacement (cc) must match the bar, or the saw either bogs in the cut or wastes fuel. A 25.4 cc engine suits a 12-inch bar for trimming. A 40 cc engine with a 16-inch bar is the home-standard balance of power and weight. A 52-62 cc engine with an 18-20 inch bar handles sustained cutting and larger diameter wood.
The 16-inch 40 cc gas chainsaw is the best all-round home choice, and the 52 cc 18-inch model steps up for farm and ranch work.
Features that matter in daily use
Look for a throttle-synced choke that starts the saw with fewer pulls, non-slip handles for control, and dual fuel tanks that let you refuel less often. A top-handle design helps for one-handed trimming, while a rear handle gives more control for bucking logs. Chain tensioning without tools is a convenience you will appreciate on every job.
For heavy-duty clearing, the 62 cc 20-inch gas chainsaw with 3.8 HP handles the biggest rounds and long cutting sessions.
Common mistakes to avoid
- Buying a bar longer than the engine can drive: an undersized engine bogs and overheats the chain.
- Oversizing for occasional use: a 20-inch saw is heavy to carry for branch trimming.
- Ignoring the usable cut: a 12-inch bar does not cut 12-inch logs.
- Forgetting matching chains: the replacement chain must match pitch, gauge, and drive links.
Recommended gas chainsaws
- VEVOR 16-inch 40 cc gas chainsaw – the home standard
- VEVOR 52 cc 18-inch gas chainsaw – farm and ranch work
- VEVOR 62 cc 20-inch gas chainsaw – heavy clearing
- VEVOR 12-inch 25.4 cc gas chainsaw – trimming and small firewood
Browse the full gas chainsaws collection.
u003cpu003eBar length sets the largest log you can cut in one pass: a 10-12 inch bar handles firewood and branches, while 14-16 inch bars cut bigger logs. Choose the bar for your typical cut, not the biggest log you might meet.u003c/pu003e
u003cpu003eMatch cc to the bar: around 25-30cc suits 10-12 inch bars for light work, and 35cc or more handles longer bars and heavier cutting. A bigger engine cuts faster but weighs more and drinks more fuel.u003c/pu003e
u003cpu003eGas chainsaws cut faster and run anywhere without cords or batteries, which suits firewood and property work. Electric models are lighter and quieter for small jobs near power. Choose by how often and where you cut.u003c/pu003e
u003cpu003eLook for easy starting, tool-free chain tensioning, and a low-kickback bar and chain. Automatic oiling keeps the chain lubed while you work, and an anti-vibration handle reduces fatigue on longer cuts.u003c/pu003e
Related guides
Is a 12-inch saw enough for your home? Our 12-inch chainsaw review answers that in detail. When the chain wears, the gas chainsaw chains buying guide explains how to match a replacement.
