Quick answer: The best digital piano carry case is the Gator GKB-88 SLIM ($169.99 at Kraft Music), because its published interior of 1,365 x 356 x 171 mm fits every 88-key portable in our table except the deep Yamaha P-525. If you own a Yamaha P-series, Casio PX-S, Roland FP-10/FP-30X or Kawai ES120, the maker’s own bag ($159.99 to $189.99) is the safer fit. Whatever you buy, compare the bag’s inside length with your piano’s width: Gator’s $409.99 Pro-Go G-PG-88SLIM is 1,308 mm inside, which is shorter than a Yamaha P-225 (1,326 mm) or a Casio PX-S1100 (1,322 mm).
A carry case for a digital piano is a sizing problem before it’s a quality problem. Every 88-key portable is about 1.3 m wide, but the differences of 20 to 50 mm between models decide whether a zipper closes. Bag makers publish inside dimensions; piano makers publish outside dimensions. We put the two side by side.
We compared 17 bags and cases from Gator, Roland, Yamaha, Casio, Kawai and On-Stage using the inside dimensions published by Roland and by US dealers Kraft Music, Alamo Music and Chuck Levin’s, plus Thomann for the Casio bag. We checked them against the outside dimensions of 11 pianos from Yamaha, Roland, Kawai and Casio spec sheets. Prices are dealer listings on November 6, 2026. We didn’t try these bags on the pianos ourselves, so the fit table below is “fits on paper”. Soft padding usually gives a few millimeters, but a bag that’s 15 mm short is a real problem.
Which bag fits which piano
| Piano (W x D x H, music rest off) | Gator GKB-88 SLIM 1,365 x 356 x 171 | Yamaha SC-KB851 1,364 x 315 x 175 | Roland CB-B88S 1,300 x 300 x 160 | Casio SC-900P 1,375 x 315 x 223 | Gator G-PG-88SLIM 1,308 x 394 x 165 | Roland CB-B88V2 1,440 x 380 x 150 |
|---|---|---|---|---|---|---|
| Casio PX-S1100 1,322 x 232 x 102 | Fits, 43 mm spare | Fits, 42 mm spare | 22 mm too short | Fits, 53 mm spare | 14 mm too short | Fits, 118 mm spare |
| Casio CDP-S160 1,322 x 232 x 99 | Fits, 43 mm spare | Fits, 42 mm spare | 22 mm too short | Fits, 53 mm spare | 14 mm too short | Fits, 118 mm spare |
| Yamaha P-145 1,326 x 268 x 129 | Fits, 39 mm spare | Fits, 38 mm spare | 26 mm too short | Fits, 49 mm spare | 18 mm too short | Fits, 114 mm spare |
| Yamaha P-225 1,326 x 272 x 129 | Fits, 39 mm spare | Fits, 38 mm spare | 26 mm too short | Fits, 49 mm spare | 18 mm too short | Fits, 114 mm spare |
| Yamaha P-45 1,326 x 295 x 154 | Fits, 39 mm spare | Fits, 38 mm spare | 26 mm too short | Fits, 49 mm spare | 18 mm too short | 4 mm too low |
| Yamaha P-525 1,336 x 376 x 145 | 20 mm too shallow | 61 mm too shallow | Too short and too shallow | 61 mm too shallow | 28 mm too short | Fits, 104 mm spare |
| Roland FP-10 1,284 x 258 x 140 | Fits, 81 mm spare | Fits, 80 mm spare | Fits, 16 mm spare | Fits, 91 mm spare | Fits, 24 mm spare | Fits, 156 mm spare |
| Roland FP-30X 1,300 x 284 x 151 | Fits, 65 mm spare | Fits, 64 mm spare | Fits, 0 mm spare | Fits, 75 mm spare | Fits, 8 mm spare | 1 mm too low |
| Roland FP-40 1,307 x 332 x 122 | Fits, 58 mm spare | 17 mm too shallow | 7 mm too short, 32 mm too shallow | 17 mm too shallow | Fits, 1 mm spare | Fits, 133 mm spare |
| Roland GO:PIANO88 1,280 x 276 x 84 | Fits, 85 mm spare | Fits, 84 mm spare | Fits, 20 mm spare | Fits, 95 mm spare | Fits, 28 mm spare | Fits, 160 mm spare |
| Kawai ES120 1,305 x 280 x 150 | Fits, 60 mm spare | Fits, 59 mm spare | 5 mm too short | Fits, 70 mm spare | Fits, 3 mm spare | Fits, 135 mm spare |
All figures are in millimeters. “Spare” is the leftover inside length; “too shallow” means the piano is deeper front to back than the bag, and “too low” means the piano is taller than the bag’s inside height. Piano dimensions come from usa.yamaha.com, roland.com/us and kawaius.com spec pages, and from Thomann’s listings for the two Casio models. Bag interiors come from roland.com/us (CB-B88S, CB-B88V2), Kraft Music’s listings (Gator, Yamaha) and Thomann (Casio SC-900P), converted from inches where needed. Alamo Music lists the same GKB-88 SLIM at 53 x 15 x 6 inches inside (1,346 x 381 x 152 mm), which trims 19 mm off every length margin and makes the Yamaha P-45 2 mm too tall. Two dealers publishing different interiors for one bag is a good reason not to buy a bag with less than 10 to 15 mm to spare.
The table holds two surprises. The most expensive slim bag here, Gator’s Pro-Go G-PG-88SLIM at $409.99, is too short on paper for every Casio and Yamaha portable in the list. And Roland’s own CB-B88S has exactly 0 mm of length to spare around an FP-30X and doesn’t fit the newer FP-40 at all.
1. Gator GKB-88 SLIM: Best Overall
Gator GKB-88 SLIM
- Interior 53.75 x 14 x 6.75 in (1,365 x 356 x 171 mm), per Kraft Music's listing.
- 600-denier nylon shell, adjustable padded straps inside to hold the piano in place, storage pockets for cables and a pedal.
- Alamo Music lists it at 6.5 lb (2.9 kg) and 59 x 17.5 x 6.25 in outside.
- $169.99 at Kraft Music; $199.99 at Alamo Music (compare-at $239.99) on November 6, 2026.
The GKB-88 SLIM is the bag to buy if you don’t want to think about it. On Kraft’s numbers it clears every Casio, Yamaha, Roland and Kawai portable in our table by 39 to 85 mm of length, and its 356 mm depth also takes the deep Roland FP-40, which three of the brand bags here don’t. The only common portable it misses is the Yamaha P-525, which is 376 mm deep. The internal straps matter more than they look: a 1,284 mm FP-10 in a 1,365 mm bag has 81 mm to slide around in without them. The trade-off against the brand bags is fit for one specific model. A Yamaha or Casio bag is cut closer to its own piano and usually has pockets sized for that maker’s pedal unit and music rest.
2. Yamaha SC-KB851: Best for Yamaha P-Series
Yamaha SC-KB851
- Interior 53.7 x 12.4 x 6.9 in (1,364 x 315 x 175 mm), per Kraft Music's listing.
- Yamaha's compatibility list: P-35, P-45, P-105, P-115, P-125, P-125a, P-143, P-145, P-145BT, P-223 and P-225.
- 3.5 lb (1.6 kg) with padded handles.
- $189.99 at Kraft Music on November 6, 2026.
Yamaha’s own P-series bag covers more than a decade of its compact pianos, from the P-35 to the current P-225, and its interior is the most closely matched to them: 38 mm of spare length around the 1,326 mm Yamaha chassis. At 3.5 lb (1.6 kg), it’s light too, so a P-225 in its bag weighs about 28.9 lb. It is not for the P-525. That piano is 376 mm deep, 61 mm more than the bag, and it isn’t on Yamaha’s list. For more on the P-225 itself, see our Yamaha P-225 review.
3. Roland CB-B88S: Best for Roland FP-10, FP-30X and GO:PIANO88
Roland CB-B88S
- Inside 1,300 x 300 x 160 mm, outside 1,320 x 320 x 180 mm, 1.81 kg (4 lb), per roland.com/us.
- Roland's fit list: RD-88EX, RD-08, FP-30X, FP-10 and GO:PIANO88 (GO-88PX).
- Polyester shell, foam padding with fleece lining, two hook-and-loop straps inside, detachable shoulder strap fixed diagonally.
- $179.99 at Kraft Music; listed but out of stock at Chuck Levin's on November 6, 2026.
The CB-B88S is the most compact bag here, and that cuts both ways. Its outside is only 20 mm longer than its inside, so it adds very little to the length you need to fit in a car. But its 1,300 mm interior is exactly the width of an FP-30X, which leaves zero millimeters to spare. Roland lists the FP-30X as a fit, and padded ends give a little, but expect a snug zip. The bag is roomier around the 1,284 mm FP-10 (16 mm) and the 1,280 mm GO:PIANO88 (20 mm). It’s too short for every Yamaha, Casio and Kawai portable in our table, and it doesn’t fit Roland’s own new FP-40 (see below).
4. Casio SC-900P: Best for Casio PX-S and CDP-S
Casio SC-900P
- Interior 1,375 x 315 x 223 mm, 1,230 g, 20 mm padding, per Thomann's listing.
- Kraft Music's fit list: CDP-S150, CDP-S160, CDP-S350, CDP-S360 and PX-S1000 through PX-S7000.
- Recessed zipper, carrying straps, two outside pockets for the music rest, adaptor and Casio's optional SP-34 three-pedal unit.
- $159.99 at Kraft Music on November 6, 2026, the cheapest maker bag here.
The Casio slim pianos are the easiest to carry: a PX-S1100 is 11.2 kg and only 102 mm tall, according to Thomann’s spec listing, so the SC-900P has plenty of room around it, with 53 mm of spare length. Kraft lists the SC-900P for the whole PX-S and CDP-S line; Thomann’s own fit list names only the PX-S5000, PX-S6000 and PX-S7000, so the size figures are the more useful check. Kraft also sells Casio’s SC-800 ($219.99), a three-way bag that can be worn as a backpack, for the same pianos up to the PX-S5000. With the bag, a PX-S1100 weighs about 12.4 kg (27.4 lb), the lightest hammer-action combination in this guide. Our Casio PX-S1100 review covers the piano.
5. Kawai SC-2: Best for Kawai ES120
Kawai SC-2
- Padded soft case for the ES120, also listed for the older ES110 and ES60, per Kraft Music.
- Jacquard polyester, water repellent, full-size front pocket, removable shoulder strap.
- Kawai doesn't publish the interior dimensions.
- $169 on kawaius.com, $169.99 at Kraft Music on November 6, 2026.
Kawai’s US site lists the SC-2 as the ES120’s bag, and the ES120 is 1,305 x 280 x 150 mm and 12 kg (26.5 lb), per kawaius.com. Kawai doesn’t publish the SC-2’s inside size, so we can’t put it in the fit table. If you’d rather buy on numbers, the Gator GKB-88 SLIM has 60 mm of spare length around the ES120. Avoid Roland’s CB-B88S for this piano, since it’s 5 mm too short. One price oddity: Chuck Levin’s listed the SC-2 at $279.00 on November 6, the same price as Kawai’s bigger wheeled SC-1, so compare before you pay. See our Kawai ES120 review for the piano.
6. Gator GK-88 SLIM: Best With Wheels
Gator GK-88 SLIM
- Interior 53.5 x 15.25 x 6 in (1,359 x 387 x 152 mm), per Kraft Music.
- Lightweight foam-lined case with a rigid shell, built-in wheels, a pull-out handle and stair slides.
- Adjustable padded straps inside; large outside pockets for pedals and cables.
- $314.99 at Kraft Music on November 6, 2026.
If you move the piano through parking lots, school hallways or venue loading doors, wheels matter more than a few extra millimeters of foam. The GK-88 SLIM is the rolling version of Gator’s slim size: it fits every portable in our table except the Yamaha P-45, which is 2 mm too tall on paper. Its 387 mm depth also takes the Yamaha P-525. The cheaper rolling option, On-Stage’s KBA4088 ($165.95 at Chuck Levin’s), has a roomy 58.5 x 15 x 5.1 inch interior, but its 130 mm height is too low for the Roland FP-10 and FP-30X, the Kawai ES120 and the Yamaha P-45, so check your piano’s height first. Roland’s own wheeled SC-G88W3 ($439.99 at Kraft) weighs 9.9 kg empty, 88% of a PX-S1100’s weight.
7. Gator GTSA-KEY88: Best for Flying
Gator GTSA-KEY88
- Molded polyethylene ATA case with TSA-approved locking latches, per Kraft Music.
- Interior 59 x 19 x 6.63 in (1,499 x 483 x 168 mm), big enough for the Yamaha P-525 and Roland FP-90X.
- In-line wheels rated to 200 lb and a spring-loaded tow handle.
- $529.99 at Kraft Music and Chuck Levin's on November 6, 2026.
A gig bag protects against bumps when you load the piano yourself. In an airplane hold, someone else handles it, and a hard shell is the only real protection for the keybed. The interior of the GTSA-KEY88 adds up to about 85 linear inches, so even with the shell it stays well within the 150-inch limit of the federal rule for instruments (more below). Gator also sells a deep version (GTSA-KEY88D) and a slim extra-long version (GTSA-KEY88SLXL), both at $529.99 at Kraft. A molded case is heavy, bulky and overkill for driving to lessons, but it’s the one to buy if the piano is going on a plane.
The bags to check before you buy
- Gator G-PG-88SLIM ($409.99). A well-equipped bag, with ballistic nylon, a micro-fleece lining, a built-in rain cover and hideaway backpack straps. But its published interior is 51.5 x 15.5 x 6.5 in (1,308 x 394 x 165 mm): 14 mm too short for a Casio PX-S1100 and 18 mm too short for a Yamaha P-225 or P-145. It fits Roland and Kawai portables, with as little as 1 mm to spare on an FP-40. For Yamaha and Casio pianos, the G-PG-88SLIMXL (58.5 inches inside) is the same price.
- Roland CB-B88S with an FP-40. Roland’s new FP-40 is 1,307 x 332 x 122 mm, 7 mm longer and 48 mm deeper than the FP-30X. Roland’s FP-40 spec page lists the bigger CB-B88V2 (1,440 x 380 x 150 mm inside, 2.2 kg) and the 76-note SC-G76W3 case as its carrying options. Note that the SC-G76W3’s published inside height is 110 mm, 12 mm less than the FP-40’s. We found no US dealer listing for the CB-B88V2 on November 6, 2026.
- Gator GKB-88 SLXL ($189.99). “Extra long” at 58.75 inches, but only 5.75 inches (146 mm) tall inside, which is too low for an FP-30X (151 mm), an ES120 (150 mm) or a P-45 (154 mm).
- Budget envelope bags. Metronome Music sells a Gator Economy Gig Bag for 88-note keyboards at $69.99 with 10 mm of padding and no published interior size, and Kraft Music sells its own Gator-made slim bag for $69.95. Both are fine as dust covers or for short car trips, but the Gator Economy bag’s 10 mm of padding is half the Casio SC-900P’s 20 mm.
What you’ll actually carry
| Piano + bag | Piano weight | Bag weight | Total |
|---|---|---|---|
| Roland GO:PIANO88 + CB-B88S | 5.8 kg | 1.81 kg | 7.6 kg (16.8 lb) |
| Casio PX-S1100 + SC-900P | 11.2 kg | 1.23 kg | 12.4 kg (27.4 lb) |
| Yamaha P-225 + SC-KB851 | 11.5 kg | 1.6 kg | 13.1 kg (28.9 lb) |
| Roland FP-10 + CB-B88S | 12.6 kg | 1.81 kg | 14.4 kg (31.8 lb) |
| Roland FP-40 + CB-B88V2 | 14.0 kg | 2.2 kg | 16.2 kg (35.7 lb) |
| Roland FP-30X + CB-B88S | 14.8 kg | 1.81 kg | 16.6 kg (36.6 lb) |
Piano weights are from Roland’s, Yamaha’s and Thomann’s spec listings (the FP-30X and FP-40 figures include the music rest); bag weights are from roland.com/us, Kraft Music (Yamaha) and Thomann (Casio). The spread is wider than the pianos’ similar widths suggest: an FP-30X in its bag weighs more than twice as much as a GO:PIANO88 in the same bag, because the GO:PIANO88 has box-shaped keys rather than a hammer action. Our best portable digital piano guide covers the weight and battery trade-offs in more detail.
How to measure your piano for a bag
- Width: measure end to end across the case, including the end blocks. The music rest doesn’t change it.
- Depth: front edge to back panel, music rest off. This is where bags fail most often after length: the FP-40 (332 mm) and P-525 (376 mm) are much deeper than slim models like the PX-S1100 (232 mm).
- Height: at the tallest point, usually the control panel or the speaker box, not the keys.
- Compare with the bag’s inside dimensions, and look for 10 to 15 mm of spare length. Dealers sometimes publish different figures for the same bag, as Kraft and Alamo do for the GKB-88 SLIM.
- Leave the stand and pedal unit out. Furniture stands like Roland’s KSC-70 don’t go in a bag. Our digital piano stand guide covers folding stands that travel better.
Flying with a digital piano
US airlines must accept your piano as checked baggage under the federal rule at 14 CFR 251.5, if the outside length, width and height of the instrument in its case add up to no more than 150 inches and the total weighs no more than 165 pounds, subject to the limits of the aircraft. The rule covers whether the airline must take the instrument; it doesn’t cap the airline’s baggage fees. The Gator GTSA-KEY88’s interior alone adds up to about 85 linear inches, and even with its shell an 88-key case stays well under 150, so size isn’t the issue; protection is. In a cargo hold, a soft bag offers little against a heavy suitcase dropped on the keybed, so fly with a molded case like the Gator GTSA-KEY88.
Are any piano bags or cases recalled?
We found no CPSC recall for Gator, On-Stage or any keyboard bag or case in the saferproducts.gov recall database on November 6, 2026. The only “Gator” recalls on file are John Deere Gator utility vehicles. The Roland and Casio recalls on file cover a 2014 Roland digital piano recall and Casio piano benches and keyboards from 2004 and 2007, not bags.
How we compared
We started from the bags and cases that Roland, Yamaha, Casio and Kawai list for their portable pianos, then added Gator’s 88-note keyboard range and On-Stage’s KBA4088, using the listings at Kraft Music, Alamo Music, Chuck Levin’s and Metronome Music on November 6, 2026. Bag interiors come from roland.com/us for Roland, Thomann for the Casio SC-900P, and the dealer listings for the others. Piano dimensions and weights come from the spec pages on usa.yamaha.com, roland.com/us and kawaius.com, and from Thomann for the Casio models, whose own US site blocked our requests. We calculated every fit and margin from those figures. We didn’t fit the pianos into the bags ourselves, and the recall check used the CPSC database.
The bottom line
Buy the Gator GKB-88 SLIM ($169.99) if you want one bag that fits nearly any 88-key portable. If your piano is a Yamaha P-series, Casio PX-S or CDP-S, Roland FP-10, FP-30X or GO:PIANO88, or a Kawai ES120, the maker’s own bag (SC-KB851, SC-900P, CB-B88S or SC-2, $159.99 to $189.99) is cut closer to it. Own the new Roland FP-40? Skip the CB-B88S and look at the CB-B88V2 or the Gator GKB-88 SLIM. Add wheels with the Gator GK-88 SLIM ($314.99) if you move the piano often, and buy a molded GTSA-KEY88 ($529.99) only if it’s going on a plane. Before paying $409.99 for the Gator G-PG-88SLIM, check your piano’s width: at 1,308 mm inside, it’s too short for every Casio and Yamaha portable in our table.