The shop asked which grind you wanted and you froze. It is a reasonable place to freeze: the two words describe real, distinct things, and almost nothing explains them without immediately reaching for a chart of one manufacturer's proprietary codes.
Here are the two ideas. Once you have them, the charts become readable.
Bounce, in one paragraph
Bounce is the angle between the leading edge of the wedge and the lowest point of the sole when the club is soled normally.
Put the club on the ground in its natural position. If the leading edge sits slightly above the ground because the back of the sole is lower, that difference, expressed as an angle, is the bounce.
What it does: it stops the club digging. The sole hits the turf or the sand first and skids, rather than the leading edge cutting in. More bounce means more resistance to digging.
That is the whole mechanism, and everything else follows from it.
Grind, in one paragraph
Grind is metal removed from the sole to change its shape.
Bounce is one angle measured in one place. A sole is a three-dimensional surface, and grinding changes its shape at the heel, the toe and the trailing edge.
What it does: it changes how the club sits and behaves when you do not present it squarely. Relieving the heel lets you open the face without the leading edge lifting off the ground. Relieving the trailing edge lets you use the club more steeply. Leaving the sole wide keeps the anti-digging behavior intact.
So bounce is a number and grind is a shape, and the shape determines how much of the number you actually get when the face is open.
What decides how much bounce you need
Two variables, and both are about you and where you play.
Your turf and sand
Soft, wet turf and soft, fluffy sand let a club dig easily. More bounce resists that.
Firm, tight turf and coarse, compacted sand do not let the club in as readily. Too much bounce on a firm lie makes the sole skid into the back of the ball, which is the thinned shot people describe as blading it.
And most golfers play on ground that changes across a season, which is one reason a single wedge is a compromise rather than an optimum.
Your attack angle and how you take a divot
A steep swing with a deep divot puts the leading edge into the ground hard and generally suits more bounce.
A shallow swing that brushes the turf does not, and generally suits less.
The evidence is already in front of you. Look at your divots. Deep and long, or a bruise on the grass? That is more informative than any chart, and it costs nothing.
The two failure modes, so you can recognize them
Too little bounce for your conditions: the club digs. Fat shots, chunks, and a sensation of the club stopping in the ground.
Too much bounce for your conditions: the club skids. Thin shots and blades, particularly off tight lies, because the sole hits first and lifts the leading edge into the middle of the ball.
Golfers frequently diagnose both of these as swing faults. Sometimes they are. When the pattern is condition-specific, appearing on firm lies and not soft ones or the reverse, the wedge is a legitimate suspect.
Why brand grind codes are not comparable
This is the part that makes the subject feel harder than it is.
Every wedge maker names its own grinds with its own letters or words. Those names are internal to that company. A letter from one maker and the same letter from another are not describing the same shape and are not meant to.
What is comparable is the bounce angle, which is a measurement, and the maker's own description of what the grind does. So when reading a manufacturer's grind chart, the useful information is the sentence describing the intended lie and swing type, not the code.
This is the same pattern that runs through the rest of club specification: where a company publishes a measured number, it means the same thing everywhere; where it prints a name, it means what that company decided. Our page on the golf club spec sheet, translated covers which numbers on a club are which.
What a full wedge setup looks like
Not a recommendation about your bag, just how the pieces fit.
Most golfers carry more than one wedge, and they do not all need the same bounce. A common structure is more bounce on the club used most from sand and soft lies, and less on the club used most from tight fairway lies. That is a description of a widespread arrangement rather than a prescription.
The other half of a wedge setup is the loft gaps, and this is where modern iron sets cause trouble. Because pitching wedge lofts have got stronger over time, the distance between the set's own wedge and a traditional sand wedge has widened, which is why gap wedges exist. Choosing wedge lofts against your specific pitching wedge, rather than against a general idea, is the version of this that works. Our article on whether you need every club in the bag covers the gapping test that finds the hole.
What to check before buying a wedge
Your divots, as above. The single most useful piece of evidence and it is free.
Your home course's turf and sand. Firm or soft, and how much it changes through the year.
Your existing pitching wedge's published loft, so the new wedge fits under it rather than beside it.
The maker's own description of the grind, not the code. What lie is it designed for and what does it allow you to do with the face.
And whether you actually open the face. Grind features that exist to support an open face are worth nothing to a golfer who plays every short shot square, and that is a completely legitimate way to play.
The one-line version
Bounce is an angle that stops the club digging. Grind is metal removed to change how the sole behaves when the face is not square. Your turf and your divot decide how much of each you want, and the brand codes are not comparable between makers.
No bounce figure or grind code is stated in this article, because both belong to specific products on specific makers' pages, and a number here would describe nothing you could buy.
FAQ
What is bounce on a wedge?
The angle between the leading edge of the wedge and the lowest point of the sole when the club is soled normally. Its job is to stop the club digging: the sole hits the turf or sand first and skids rather than the leading edge cutting in.
What is grind, and how is it different from bounce?
Grind is metal removed from the sole to change its shape at the heel, the toe and the trailing edge. Bounce is a number and grind is a shape, and the shape determines how much of the number you actually get when the face is open.
How do I know how much bounce I need?
Two things decide it: your turf and sand, since soft conditions suit more bounce and firm conditions less, and your attack angle, read from your own divots. Deep, long divots generally suit more bounce; a shallow brush of the turf generally suits less.
How do I recognize the wrong bounce for my conditions?
Too little and the club digs: fat shots, chunks, the club stopping in the ground. Too much and the club skids: thin shots and blades, particularly off tight lies. When the pattern is condition-specific, the wedge is a legitimate suspect rather than the swing.
Do grind letters mean the same thing across brands?
No. Every wedge maker names its own grinds, and those names are internal to that company. What is comparable is the bounce angle and the maker's own description of the intended lie and swing type, not the code.