Choosing an operable acoustic wall

Vertical retractable or horizontal sliding? A comparison by sound reduction index, system height and the floor and storage space each one costs you.

Skyfold vertical retractable acoustic wall descending in a lobby

Vertical or horizontal?

A Skyfold wall descends from the ceiling at the touch of a button: no floor tracks, no wall pockets and no stacking space lost. A Variflex horizontal wall slides on an overhead track and stacks at the end of its run, which is often the better fit when the ceiling void or structure cannot carry a retractable system.

Series data

SeriesMax. heightMax. widthSound reduction index
Skyfold Zenith3660 mm14,600 mm47–59 dB
Skyfold Classic11,000 mmUnlimited51–59 dB
Skyfold Mirage (glazed)7310 mmUnlimited34 dB
Variflex 88 / ML 88 / EI 3014,000 mmPanel width up to 1250 mmUp to 58 dB

Skyfold Mirage takes clear laminated glass, plexiglass, Lexan, bullet-proof glass or frosted glass inserts where daylight has to pass through the division.

How to brief us

  • Division length and finished ceiling height, plus the available ceiling void.
  • The acoustic separation you actually need between the two rooms.
  • Whether the division must be glazed or opaque.
  • Operation: fully automatic, semi-automatic or manual (Variflex covers all three).
  • Finish: vinyl, fabric, wood veneer, specialty metals, laminates or marking surfaces.

Frequently asked

How much sound does an operable wall block?
Skyfold systems in our catalogue carry a sound reduction index of up to 59 dB (Zenith 47–59 dB, Classic 51–59 dB), the glazed Mirage series 34 dB, and Variflex horizontal walls up to 58 dB.
Does a Skyfold wall need floor tracks or a storage pocket?
No. It is vertically retractable and stores in the ceiling, so there are no floor tracks and no wall storage pockets, and system length is unlimited.
How tall can an operable wall be?
Skyfold Classic reaches a maximum system height of 11,000 mm and Variflex reaches system heights up to 14,000 mm.