Lift the Pickguard: What a Strat's Body Route Tells You Before You Buy
Short answer: the routing under a Stratocaster's pickguard tells you three useful things about a used guitar: which pickups it can take without anyone picking up a router, whether the body has been cut since it left the factory, and, roughly, which era of Fender production it came from. What it almost certainly does not tell you is how the guitar will sound. Taking the pickguard off is a ten-minute job, and on a vintage-style Strat it is one of the few checks I'd call non-negotiable.
I've had a lot of Strats on the bench, and the guitar that shows up with a surprise under the guard is more common than you'd think. Here's how to read what you find.
The four routes you'll actually see
SSS: three separate cavities
This is the original 1950s layout: one slot per single-coil, joined by a narrow channel for the wires, plus the control cavity. Fender's own routing chart lists its American Vintage and Mexican Classic Series reissues as S/S/S. It's the most collectible route and the least flexible. Only single-coil-size pickups drop in.
"Swimming pool": one big cavity
One large rectangle that runs from the neck pickup to the bridge pickup. Strat histories and long-running forum threads put it on the American Standard from the late 1980s through the late 1990s, with Fender moving those bodies to an HSH route around 1998 to 2000. Exact cutover dates vary by source, so treat the year as a clue, not proof. The appeal is obvious: almost any pickup layout fits without new routing.
HSS and HSH
These are separate cavities again, but with humbucker-size room at the bridge (HSS) or at both the neck and bridge (HSH). Fender's routing chart lists the American Standard, the American Series and the American Deluxe as H/S/H, even on guitars that shipped with three single-coils. The usual explanation is a manufacturing one. A single body route that takes every pickup option is simpler to build, and you never see it once the pickguard is on.
Why the route matters when you're buying used
1. It tells you what you can swap in, and what it will cost
If you're planning to put a humbucker in the bridge, an HSH, HSS or swimming-pool body is plug-and-play with the right pickguard. On a three-cavity body, a full-size humbucker means routing, unless you go with a single-coil-size humbucker.
That Player Strat is a good example of the no-routing route to more output. The Hot Rails fits a standard single-coil slot and an SSS pickguard, so the body stays original and the mod reverses in an afternoon. When I'm buying a modified Strat, that's the kind of mod I'm happy to see.
2. It tells you whether the body has been cut
This is the big one on anything sold as vintage-correct. A reissue that should have three cavities but shows a humbucker-size pocket at the bridge has been routed after it left the factory. That doesn't make it a bad guitar, but it isn't the guitar the listing implies, and it should be priced like a modified instrument. Our piece on which mods hurt resale value goes deeper on that.
Things I look at in the cavity itself:
- Finish inside the route. Factory routes are cut before the body is painted, so the cavity walls usually carry some sealer or overspray. A route cut after finishing tends to show bare, fresh-looking wood and sometimes a chipped finish edge at the top. That's a strong clue, not proof. A refinished body will also have overspray in the cavities.
- Tool marks and shape. Factory routes from the same era look consistent. A hand-routed pocket often has uneven walls, a different depth, or corners that don't match the other cavities.
- Extra screw holes. Holes in the body that don't line up with the current pickguard mean a different guard was on there at some point.
- Shielding paint or foil. Not a problem by itself, but it tells you someone has been working inside the guitar, so look closely at the solder joints too.
3. A route that doesn't match the pickups isn't automatically a mod
This trips people up. An SSS Strat with an HSH route under the guard is often exactly how it left Fender. The route that matters is the one that shouldn't be there for that model, not one that's just bigger than the current pickups need.
Pickguard swaps: look, then ask
A swapped pickguard is the most common cosmetic mod there is, and it's harmless when it's a straight swap like the one on the American Performer Strat HSS above. Same layout, same screw pattern, and the original guard is in the case. What I'd want to know on any swapped guard is why it was swapped. A cosmetic change is fine. A guard swapped to hide a new route, or one cut to fit a pickup the body was never routed for, is a different conversation.
Does the route change the tone?
Players argue about this, especially over the swimming pool. One side says removing that much wood under the pickups must thin out the sound or change the resonance. The other side says a few cubic inches of alder under a pickguard is nothing next to pickup height, string gauge, pickups and the amp.
My take: I've never heard a difference I could pin on the route, and I've never seen a controlled test that showed one. A swimming-pool body does weigh a little less than a three-cavity body of the same wood, but wood density varies so much from body to body that the route is rarely what decides whether a Strat feels light or heavy. If you love a guitar that turns out to be swimming-pool routed, I wouldn't let that talk you out of it. If you're paying a premium for vintage correctness, the route matters for originality, not for tone.
How to check it without hurting anything
- Slack the strings off completely. On a floating tremolo, you may want to block it so the bridge doesn't flop forward.
- Use a properly fitting Phillips driver. Pickguard screws strip and cam out easily, and a slipped bit on a nitro finish leaves a mark you'll see forever.
- Lift the guard straight up. Don't flip it over hard, because the pickups and switch are still wired to the jack.
- Look before you touch: route shape, finish in the cavities, any pencil marks or stamps, and the solder joints.
- Photograph everything, then reassemble. Snug the screws, but don't overtighten them.
If you're buying remotely, ask the seller for a photo with the guard lifted. A seller who's confident in the guitar won't mind. For the rest of the inspection, our used Stratocaster checklist covers the neck, frets and tremolo.
What this means for the Strats on our wall
If originality matters to you, a vintage-style reissue like the American Vintage II '57 Stratocaster is the one where a correct route matters most. That guitar's bench notes say the original pickups and electronics are intact and passed a full electronics test. If you want a Strat you can reconfigure freely later, an American Standard-era body is the friendlier platform. Fender's own routing chart lists that model as H/S/H. You can browse everything currently on the wall in our in-stock guitars. If you've got a Strat with an unoriginal route and you're wondering what it's worth, our Cash Offer page is a quick way to find out.
FAQ
Does a swimming pool route hurt a Strat's value?
Not when it's factory. It's correct for those years, and buyers who know Strats expect it. What hurts value is a non-factory route on a model that should have separate cavities.
Can I put a humbucker in an SSS-routed Strat without routing?
Yes, if it's a single-coil-size humbucker, like a rail-style pickup or a stacked design. A full-size humbucker needs a bigger cavity and a pickguard cut for it.
Is an HSH route on an SSS Strat a sign it's been modified?
Usually not. Fender's routing chart lists several production lines, including the American Standard and American Series, as H/S/H regardless of the pickups fitted. Compare the route with what's correct for that model and year.
Does the route affect sustain or tone?
There's no solid evidence that it does. Pickups, pickup height, setup and the amp make far bigger differences. Judge the guitar by playing it, and judge the route for originality.
