The twin room is where copied details cause the most trouble. The entrance and bathroom provisions are identical to a king room, so it is tempting to reuse the whole detail. But the bedside arrangement is different, and the socket arrangement is different in the opposite direction.
This is the schedule we mark on a twin room plan before drawings are issued for construction.
Entrance: Door Frame
| Item | Provision | Height |
|---|---|---|
| Door plate | Single 86 mm back box, beside door frame | 1.35 m FFL |
| Door contact | Mounted on door frame, magnet on leaf | Top of frame |
Identical to the king room. The door contact triggers the corridor light on opening so the guest is not searching for the card slot in the dark. The door plate at 1.35 m puts the doorbell within comfortable reach and keeps indicators at eye level from close range.
Entrance: Wall Opposite the Door
Reserve a three-gang 86 mm back box. Also identical to the king room.
| Gang | Device | Controls |
|---|---|---|
| 1 | Key card power switch | Room power, welcome scene |
| 2 | Six-button panel | Corridor light, Make Up Room, Do Not Disturb, mirror light, bathroom light, exhaust fan |
| 3 | Thermostat | HVAC setpoint, fan speed, mode |
Bedside: One Panel, Between the Beds
Reserve a single 86 mm back box on the wall between the two beds.
This is the difference from a king room. A twin room has one shared bedside panel, positioned so both occupants can reach it from their own bed without getting up.
Panels on the outer walls — which looks symmetrical on a drawing — leave the guest in the far bed unable to reach any control at all. This is the most common twin room layout error and it appears on drawings regularly because the king room detail was copied without adjustment.
Suggested button assignment:
| Position | Function |
|---|---|
| Left of centre | Left bed reading light |
| Right of centre | Right bed reading light |
| 3 | Room lighting |
| 4 | Curtain open |
| 5 | Curtain close |
| 6 | Master off |
The two reading light buttons sit at the outer edges of the panel, each toward the bed it serves. A guest in the left bed reaches the left button; a guest in the right bed reaches the right button. This is the twin room equivalent of the reading light rule.
Socket Positions
Bedside sockets in a twin room go in the centre, between the beds.
This is the opposite of the king room rule, where sockets go on the outer side.
The reason is the same in both cases — put the socket where the person using it actually is. In a twin room both guests share the nightstand between the beds, so a central socket serves both. In a king room both guests are on opposite outer sides, so outer sockets serve each of them.
Specify sufficient outlets. Two guests with a phone, a tablet and a laptop between them will find two sockets inadequate, and the workaround is an extension lead trailing across the floor.
Bathroom Controls
Controlled from the entrance six-button panel, same as a king room:
- Mirror light
- Bathroom ceiling light
- Exhaust fan — often interlocked with the ceiling light on a delay
Add a fourth only if there is a separate WC compartment or a bathtub fixture.
Complete Back Box Schedule
| Location | Box type | Contents |
|---|---|---|
| Beside door frame | Single 86 mm, 1.35 m FFL | Door plate |
| Door frame | Surface | Door contact |
| Opposite door | Three-gang 86 mm | Key card switch, six-button panel, thermostat |
| Between beds | Single 86 mm | Shared bedside panel |
| Between beds | Socket outlet | Power + USB, adequate quantity for two guests |
| Ceiling void, entrance | Accessible enclosure | RCU host |
Twin vs King: The Two Differences
| Twin room | King room | |
|---|---|---|
| Bedside panels | One, between the beds | Two, one each side |
| Bedside sockets | Centre, between the beds | Outer side, away from bed centre |
| Entrance group | Identical | |
| Bathroom controls | Identical | |
| Door plate and contact | Identical | |
Only two lines differ, but they are the two that guests interact with while lying in bed. They are worth checking specifically on every drawing.
Control Point Estimate
A twin room typically comes to slightly fewer points than a king room, since one bedside panel replaces two:
- Corridor light
- Room general lighting
- Cove or accent lighting
- Reading light left bed
- Reading light right bed
- Mirror light
- Bathroom ceiling light
- Exhaust fan
- Curtain motor — open, close, stop
- Controlled sockets
- HVAC interface
- Door plate indicators
FAQ
Can a twin room have panels on the outer walls as well?
It can, but it is rarely worth the additional cable and boxes. If the room is unusually wide and the beds are far apart, outer panels may be justified — otherwise the centre panel serves both guests adequately.
How many sockets should be provided between the beds?
More than most drawings show. Two guests charging phones and a laptop need at least four outlets plus USB. This is a low-cost provision that generates complaints when it is short.
Can the same panel face design be used in both room types?
Yes. The face design stays consistent across the property while button assignments differ by room type. This is configured, not manufactured differently.
Can GLMZK provide a panel schedule for both room types?
Yes. Send the twin and king room plans with the control point list and we will return panel schedules with button assignments and wiring diagrams for each.
Related Solutions
- Smart hotel RCU system
- Guest room control solution
- Hotel lighting and dimming control
- Smart hotel door plate
Contact GLMZK
GLMZK manufactures hotel RCU systems, guest room control panels, door plates and key card power switches. We supply contractors and system integrators worldwide, with OEM panel design and full wiring documentation.
Send us your room type, key count and control point list, and we will return a panel schedule and wiring diagram.
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