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Edge angles for alpine skis and snowboards

The base edge angle affects how quickly the ski rolls onto edge and how easy it is to pivot. The side edge angle affects grip on hard snow and how aggressively the edge engages. Here we have gathered our own recommendations for recreational skiers, racers and snowboarders.

0,3°-1,5°common range for base edge angle
86°-89°Swedish standard for side edge
88°a common all-round choice for groomed slopes
Important to know On some foreign tools, a side edge of 88° may instead be marked as 92°. Always check how the tool indicates the angle.

Ski construction

What needs to be machined?

Before the actual steel edge can be sharpened, the top sheet, sidewall, sidewall step or Titanal may be in the way and need to be machined.

Ski construction and the steel edge's two sharpening surfaces Schematic cross-section with core, base, top sheet and sidewall. Side edge and base edge are marked on the right side. CORE BASE TOPSHEET may need to be profiled SIDEWALL may need to be machined SIDE EDGE 86°-89° BASE EDGE 0.3° to 1.5°
Schematic illustration, not to scale.
TopsheetMay need to be profiled at the ski tip and tail.
SidewallMay need detailed machining so the tool can reach the steel edge.
Sidewall stepNeeds to be removed if it obstructs the file or diamond stone.
Titanal layerIn some cases, may need to be exposed or machined.
Steel edgeTuning is done on both the base edge and the side edge.

How the angles work

Base edge angle and side edge angle affect different things

The base edge angle determines how quickly the ski comes up on edge and how easily it pivots. The side edge angle primarily determines how aggressively the edge bites and how much grip you get on hard snow.

Base edge angle

0.3° to 1.5°

0.3°Hardest to pivot
Most carving-oriented
Least forgiving
Most aggressive
Quickest edge engagement
0.3°0.4°0.5°0.7°1.0°1.5°
1.5°Easiest to pivot
Most playful
Most forgiving
Least aggressive
Slower edge engagement

Side edge angle

86° to 89°

86° Most aggressive
Best grip on hard snow
Least forgiving
Immediate edge engagement
Allows the highest edge angles
86°87°88°89°
89°Less aggressive
Less grip on the hardest snow
More forgiving
Easiest to sharpen
Common at lower edge angles

How to convert foreign tools

In this guide, we use the Swedish standard and state the actual side edge angle - 86°, 87°, 88° or 89°. On some foreign tools, the tool's external angle is given instead.

89° side edgemay be listed as 91° or 1°
88° side edgemay be listed as 92° or 2°
87° side edgemay be listed as 93° or 3°
86° side edgemay be listed as 94° or 4°
Practical example: if you want an 88° side edge and the tool is marked according to a foreign standard, you should often choose 92°. Always check how your particular tool is marked before you start filing.

Quick selection

The most common choices for alpine skis

If you just want quick guidance, these are the four most common side edge angles and how they are usually used.

Quick rule of thumb: 89° is the most forgiving, 88° is a common all-round choice for piste skis, 87° provides more aggressive grip, and 86° mainly belongs on very demanding race skis.

Our general recommendations

Racers

The values are practical starting points. Empty boxes mean that we do not give any general recommendation for that combination.

Race skis and alpine snowboards

Base = base edge angle. Side edge = actual angle on the steel edge.

Race level

Swipe the table sideways on mobile.

Edge angles for racers. Base edge and side edge are given in degrees.
Discipline U12 U14-U16 U18-WC
Base edge Side edge Base edge Side edge Base edge Side edge
Slalom 0,7°-1,0° 88° 0,5°-0,7° 87°-88° 0,3°-0,5° 86°-87°
Giant Slalom 0,7°-1,0° 88° 0,5°-1,0° 87°-88° 0,5°-0,7° 86°-87°
Super-G - - 0,7°-1,0° 87°-88° 0,5°-1,0° 87°
Downhill - - 1,0° 87° 1,0° 87°
Alpine snowboard 1,0° 89° 1,0° 87°-88° 0,5°-1,0° 87°

Our general recommendations

Recreational skiers and snowboarders

For most recreational skiers and riders, it is more important to choose a sensible base edge angle and keep the edge even than to chase the most extreme setup.

Groomed runs, off-piste, park and freeride

Base edge = base edge angle. Side edge = actual angle on the steel edge.

Recreational skiing

Swipe the table sideways on mobile.

Edge angles for skiers and snowboarders. Base edge and side edge are given in degrees.
Type of skiing Beginner Intermediate Advanced-expert
Base edge Side edge Base edge Side edge Base edge Side edge
Piste 1.0°-1.5° 89° 1.0° 88°-89° 0.5°-0.7° 87°-88°
Off-piste 1.5° 89° 1.0°-1.5° 88°-89° 1.0°-1.5° 87°-88°
Park / freeride 0.7°-1.5° 88°-89° 0.7°-1.5° 88° 0.5°-1.5° 87°-88°
Snowboard freeride 1.0°-1.5° 89° 1.0°-1.5° 89° 1.0°-1.5° 88°-89°

Stick with what works

If the ski performs well and you do not have a clear problem, it is often wise to stick with the angle you already feel comfortable with.

Make small changes

It is better to go from 89° to 88° than to jump straight to 87°. The same applies to the base edge angle - small changes are clearly noticeable.

An even finish matters most

A smooth, well-polished edge usually feels better than an aggressive angle that is unevenly filed or worn.