Best Wood Planer 2026: 8 Thickness Planers for Home Shop and Production Work

Rough lumber from a local sawmill can cost 30 to 60 percent less than surfaced boards from a home improvement store. The catch is you need a way to flatten and dimension it yourself.

That is where the best wood planer earns its keep, turning rough or unevenly milled stock into flat, parallel-faced boards at a precise, repeatable thickness.

We put eight planers through testing on surface quality, snipe reduction, chip clearing, and cutter head durability.

The DeWalt DW735X 13-Inch Thickness Planer came out on top at $629.99, backed by a 4.8 rating from nearly 12,900 buyers. Its three-knife cutter head and two-speed feed produce a cleaner surface than the two-knife heads on cheaper competitors, without the snipe and tearout that plague budget machines.

This guide compares how each planer holds up under sustained use and which models justify the extra cost over an entry-level machine.

Why You Need a Thickness Planer

Purchasing S4S (surfaced four sides) lumber from a home improvement store is convenient but expensive. A thickness planer allows:

1. Buying rough lumber: rough lumber from a local sawmill or hardwood dealer costs 30 to 60% less than S4S lumber
2. Custom thickness: mill boards to any thickness needed rather than working with standard 3/4-inch
3. Flattening: reduce cupped or bowed boards to flat, parallel faces
4. Salvaging wide boards: wide slabs from sawyers require face flattening that a planer provides

The planer works with a jointer -- the jointer flattens one face true, then the planer machines the opposite face parallel to it.

Snipe: The Primary Planer Problem

Snipe is a shallow depression the planer cuts at the beginning and end of each board. It appears as a slight step in the surface at each end, visible in raking light.

Causes: the cutter head contacts the board before the feed rollers provide full support, and at the end after the exit roller passes the board.

Reducing snipe:

• Support the infeed and outfeed ends of the board to the exact height of the planer table
• Run a sacrificial board before and after each board (the sacrificial pieces take the snipe)
• Leave 2 extra inches on each end and cut off after planing

No planer eliminates snipe entirely in all conditions. Snipe reduction is managed, not eliminated.

Cutter Head Types

Straight knife head (2 or 3 knife): the standard design. Wide flat blades span the cutter head. Replacement requires removing and resetting the knives. Two-knife heads show a more visible planer mark pattern than three-knife heads.

Helical (spiral) head: multiple small carbide inserts in a spiral pattern. Each insert contacts the wood at a slight angle, making a slicing cut that produces a smoother surface and is significantly quieter. When an insert dulls, rotate it 90 degrees to expose a fresh edge. Replacement inserts cost less than full knife sets.

Helical heads are the professional choice for surface quality and noise. The cost premium is approximately doubled versus straight-knife models.

Feed Rate and Cut Depth

Cuts per inch (CPI): how many knife passes occur per inch of travel. More CPI = smoother surface. The DeWalt DW735's 96 CPI low speed setting produces a surface that requires minimal sanding; the 179 CPI high-speed setting is for rapid stock removal.

Depth of cut: reduce depth in hardwood to avoid chip-out and motor overload. A maximum of 1/16 inch per pass in hard maple or walnut is appropriate. Softwood handles up to 1/8 inch per pass.

Planer Safety

• Always joint one face flat before planing -- a twisted board fed into a planer remains twisted (the planer makes both faces parallel to each other, but parallel to the twisted reference face)
• Never plane boards shorter than the distance between the infeed and outfeed rollers
• Never plane stock narrower than 1 inch -- the board can tip into the cutter head
• Stand to the side, not directly behind the planer -- boards can be ejected at high speed