A keyboard rig in a studio grows sideways and then it grows upward, and that’s the moment an A-frame stand stops being furniture and becomes structure. Once boards stack, the stand has to hold its own geometry under load rather than just carry a slab. Most of the questions buyers send us come from that shift, not from the first board.
We build the Yinyu keyboard range in the same workshop as the rest of the stand line, so the answers below are about arms, tiers and load, the parts that decide whether a stack stays playable.
How many tiers before it wobbles
There’s no fixed number, and any supplier who gives you one is guessing. Tiers add height, height adds leverage, and leverage is what makes a stack move. The honest way to plan it’s to work out how deep the top board has to sit and how much reach the player needs, then choose the tier count that keeps the centre of the stack over the feet.
A two or three tier rig is comfortable for most players. Past that, the top tier is usually being reached for rather than played, and a separate stand at the side reads better on stage than a tall single frame.
Tier spacing is a reach problem, not a height problem
Buyers ask how high each tier sits. The question underneath is whether a hand can reach the top board without standing up. That’s spacing between tiers as much as total height. Sit at the rig before you sign a drawing off, because a tier that looks fine in a sketch is often an inch too tight to play once the board is on it.
- Keep a hand’s clearance between the top of a lower board and the underside of the tier above it.
- Check the reach to the far edge of the top board, not the near edge. That’s where the playing happens.
- Leave room for a pedal or a second board underneath if the player uses one.
Arm depth and board depth are the hidden spec
The arms carry the board, and their depth decides how much of the keyboard is supported. Too shallow and the board rocks on the front rail. Too deep and the arms foul the player’s knees. Ask for the usable arm depth and compare it with the board depth your market actually uses, because a stand sized for one board family will feel wrong with another.
Arm spacing along the rail matters as well. Widely spaced arms leave the middle of a long board unsupported, which is where a lean shows up first.
Why the A-frame geometry is worth the extra steel
A single column stand is quick to set up and cheap to ship, and it wants to fold sideways the moment there’s weight off centre. An A-frame spreads the load across two legs and puts the footprint in the shape that resists side to side movement best. That’s why heavy multi board rigs end up on A-frames even when a column stand would take the weight.
The trade is footprint and packing. An A-frame takes more floor and more carton than a column, so it suits a studio or a fixed stage better than a rig that goes in a hatchback every night.
Load, and where the weight actually goes
A tiered stand never carries a single even load. The bottom board sits low and close to the feet, and the top board sits high and out front, which is the worst place for weight. When a supplier gives you one figure for the whole stand, ask what it means per tier. The number that matters is what the top tier holds without the frame rocking.
Cable and pedal management, which nobody plans for
A stacked rig has cables running between boards, and if the stand ignores them they hang across the player’s hands. Ask where the rails sit relative to the back of each board, and whether there’s room to run a loom down the frame. A stand that gives cables somewhere to go is a stand a working player keeps.
- Run a single loom down one leg rather than separate cables per board.
- Leave slack above the top tier so a board can be swapped without rewiring the whole stack.
- Keep the pedal run on the floor clear of the stand feet so nobody kicks it mid set.
How to check a tier stand before a bulk order
- Load every tier at once with the weight the market uses, not one board at a time.
- Push the top tier sideways. If the whole frame moves, the footprint is undersized for that tier count.
- Try the reach from a seated position at the top board.
- Fold and unfold it the way a customer would, and check whether the joints need two hands.
- Lift it. A studio stand can be heavy. A stage stand that takes two people is a stage stand nobody uses.
Finishing, and why the market changes the spec
A studio rig and a touring rig want different finishes. A studio stand can carry a paint that looks good and stays put in a room. A touring stand needs a coating that survives being thrown in a van, and the contact points where the arms meet a board need to be soft enough not to mark a keyboard.
Ask for the finish and the arm covering as separate choices, because the same frame is often built for both markets and the difference is only two parts.
Packing a tier stand without wrecking it
Tier stands pack badly when the tiers are shipped assembled. The arms and the tier brackets are what get bent in a carton, so they travel flat and the frame takes the middle. If the stand ships with hardware loose, ask for it bagged and counted rather than thrown in with the frame.
For a retail market, a carton that a single person can lift sells better than one that needs two, even when the stand inside is identical.
What goes out with a keyboard stand
A keyboard rig drags other stands along with it. Someone fitting a studio tends to ask about the Yinyu keyboard stand and the OEM wood piano bench while they’re at it, then the OEM soprano saxophone stand, so the corner arrives complete.
Players buying a rig are usually buying for the desk too, so Audfine headphones ride along on the same order fairly often.
Questions before a tier stand goes on the order
Can we order extra tiers later?
Only if the frame was designed for it. A stand that takes an add on tier has to be built with the brackets from the start, so if a market might grow, say so before the run rather than after.
What arm depth should we stock?
Match it to the boards your market sells. Ask your dealers which keyboard families they carry most and size the arms to sit under those, not to a general average.
Is the stand stable with the top tier loaded?
That’s the test worth running, and it’s the one most suppliers skip. Load the top tier and push it sideways before you sign the order off.
Can it carry a laptop or a module as well as a keyboard?
Usually, if there’s a tray or a spare pair of arms, but the weight goes on the frame just like a board. Name the extra load so the frame is sized for it.
How is the finish held between the sample and the bulk?
The signed sample stays with the line, and arms and frame are compared with it as a pair. A difference between the arms and the frame is the mismatch a player notices, so both are checked at once.
Tiers, players and the standing question
A seated player and a standing player want different racks, and it isn’t only about height. A seated player’s knees sit under the bottom tier, so the frame can be deeper and the arms can hang lower. A standing player leans over the top tier, so the arms need to come closer to the body. If you’re stocking one frame for both, you’re compromising, and it’s worth saying so in the listing rather than pretending one size fits everybody.
Don’t build a tier stand around a single board. Ask the dealer which two or three keyboards actually share a stand in the market, because that’s the load the frame has to hold.
Wheels, feet and moving a loaded rack
Once a rack is loaded, nobody lifts it. Ask whether the feet take castors and whether the castors are rated for the loaded weight, because a rack that rolls in the studio and collapses a wheel under load is worse than a rack that can’t move at all. If you’re selling to touring players, castors aren’t optional and they’re the first accessory a customer asks about.
Brakes matter as much as wheels. A rolling rack that won’t stay put is a rack nobody keeps, and that’s a return you’ll see more than once.
Tell us the boards and the seating
Send the board depths, the number of tiers and whether the player sits or stands. That’s enough to work out the spacing and the footprint rather than shipping a frame that has to be reworked.
A sample earns its keep only if it arrives loaded the way it’ll be used. A stand tested empty says almost nothing about the top tier.
The keyboard frames carry the Yinyu brand and come out of Ningbo Lesound Electronics in Zhejiang, where tier brackets and single column stands are built side by side.
Post time: Oct-13-2026