3D
Square Acoustic Ceiling Raft
Description
Bring colour and shape to your ceiling with a square felt raft. Hang one as a feature or group several across a room. The 25mm radius corners keep the outline soft. The felt also softens sound in the room, taking the edge off echo. A square ceiling raft is the simplest way to cover a ceiling evenly: hang several in a grid with even gaps.
Fire rated Class B-s1,d0 to BS EN 13501-1:2018.
Two thicknesses: 12mm in 48 colours, or 24mm in 20 colours. Four sizes:
600 x 600mm, about 0.9kg at 12mm or 1.8kg at 24mm
800 x 800mm, about 1.5kg or 3.1kg
1000 x 1000mm, about 2.4kg or 4.9kg
1200 x 1200mm, about 3.5kg or 7.0kg
Supplied with 2 pairs of 1m ceiling wires (4 wires). Each wire fixes to a flat plate screwed into the top face of the raft, so nothing shows from the floor. Extra pairs are available separately.
Made to order with a lead time of approx. 10 working days, and backed by a 10-year guarantee.
Specifications
Acoustic performance
Class D, αw 0.30
Tested to ISO 354 with the board fixed flat on a rigid backing, rated to ISO 11654. NRC 0.40 is our calculation from the lab's results.
Tested performance
| Mounting | Like | αw | Class | NRC |
|---|---|---|---|---|
| Flat on a rigid backing (ISO 354) | A panel fixed to a wall | 0.30 (MH) | D | 0.40 |
12mm board, 2.4kg/m², tested to ISO 354 and rated to ISO 11654; NRC 0.40 calculated by us from the lab's results. Figures are per square metre of board, so they work for any size; for a panel hung or standing free they are a conservative guide, because its back face and edges absorb sound too. See how to read acoustic panel ratings.
Acoustic performance in your space varies with how the product is mounted, the room, and how much material is used. For the full breakdown see the science page, or contact us.
Class A, αw 0.90
NRC 0.90, tested to ASTM C423-23 with a 200mm or 400mm air gap. Class A is our calculation from the lab's results using the ISO 11654 method. Flat with no air gap: NRC 0.65, and αw 0.50 (MH), Class D, calculated from the EN ISO 354 results.
Tested performance
| Mounting | Like | NRC | SAA |
|---|---|---|---|
| Flat, no air gap (Type A) | A panel fixed to a wall | 0.65 | 0.64 |
| 200mm air gap (E200) | Panels on battens, a suspended tile | 0.90 | 0.87 |
| 400mm air gap (E400) | A raft hung below a ceiling | 0.90 | 0.87 |
24mm board, 4.87kg/m², tested to ASTM C423-23; the flat result also to EN ISO 354. Figures are per square metre of board, so they work for any size; for a panel hung or standing free they are a conservative guide, because its back face and edges absorb sound too. See how to read acoustic panel ratings.
For a raft hung below a ceiling, the 400mm result is the closest lab mounting.
Acoustic performance in your space varies with how the product is mounted, the room, and how much material is used. For the full breakdown see the science page, or contact us.
Delivery & installation
Most orders are dispatched within approx. 10 working days. Free UK mainland delivery on orders over £50. £6.99 under £50.
If you need help choosing accessories or mounting options, just get in touch and we'll help.
Returns & made to order
Every Felted product is made to order in your chosen colour and size. Want to change colour or size after ordering? Tell us as soon as possible and we'll do our best to accommodate before production begins. Once made, items can't be returned unless faulty. If anything arrives damaged, email hello@felted.uk within 48 hours with photos and we'll put it right.
If you'd like to check a colour first, order our colour sample pack. See our Terms & Conditions for full details.
