Siniat Twin frame partitions
26 system references
Technical Library › Siniat › Twin frame partitions
We are a supply and fit installation contractor, not the manufacturer. Information here is reproduced from manufacturers' literature for reference only; always confirm it directly with the manufacturer before specifying, ordering or installing.
Twin metal frame partitions - braced with Siniat Acoustic V Brace (AB) or unbraced I stud frames (UB) - for separating walls and high acoustic performance. Overall thickness is shown in brackets in the reference. Max height is Siniat's EN fire-state height (the figure Siniat say to use unless otherwise specified); the cold-state (mechanical, L/240 at 200Pa) height is shown alongside. Use the filter to narrow by performance or board.
| Reference | Build-up | Fire (mins) | Rw (dB) | Max height (mm) | Cold state height (mm) | Thickness (mm) | Duty | Weight (kg/m2) | |
|---|---|---|---|---|---|---|---|---|---|
| Twin(AB)-CS50R-15Md(170) | 15mm Siniat Megadeco each side, twin frame of CS50/Rx Siniat C studs at 600mm centres, Siniat Acoustic V Brace, no insulation. | 60 | 45 | 4000 | 4400 | 170 | Severe | 28 | |
| Twin(AB)-CS50R-15Un(170) | 15mm Siniat Universal Board each side, twin frame of CS50/Rx Siniat C studs at 600mm centres, Siniat Acoustic V Brace, no insulation. | 60 | 45 | 4000 | 4400 | 170 | Severe | 28 | |
| Twin(AB)-CS50R-215dB#15dB15Aq-100G(250) | Side A: 15mm Siniat dB Board + 15mm Siniat dB Board; Side B: 15mm Siniat dB Board + 15mm Aquaboard, twin frame of CS50/Rx Siniat C studs at 600mm centres, Siniat Acoustic V Brace, 100mm glass mineral wool. Rw+Ctr correction -9 dB. | 60 | 65 | 4000 | 6700 | 250 | Severe | 54 | |
| Twin(AB)-CS50R-215dB-25G(200) | 15mm Siniat dB Board + 15mm Siniat dB Board each side (inner + outer), twin frame of CS50/Rx Siniat C studs at 600mm centres, Siniat Acoustic V Brace, 25mm glass mineral wool. Rw+Ctr correction -8 dB. | 90 | 61 | 4000 | 5300 | 200 | Severe | 54 | |
| Twin(AB)-CS50R-215dB-50G(200) | 15mm Siniat dB Board + 15mm Siniat dB Board each side (inner + outer), twin frame of CS50/Rx Siniat C studs at 600mm centres, Siniat Acoustic V Brace, 50mm glass mineral wool. Rw+Ctr correction -8 dB. | 90 | 63 | 5300 | 5300 | 200 | Severe | 54 | |
| Twin(UB)-IS50R-215dB-50G(200) | 15mm Siniat dB Board + 15mm Siniat dB Board each side (inner + outer), twin frame of IS50/Rx Siniat I studs at 600mm centres, 50mm glass mineral wool. Rw+Ctr correction -8 dB. | 90 | 63 | 2800 | 2800 | 200 | Severe | 55 | |
| Twin(UB)-IS70B-215dB-50G(210) | 15mm Siniat dB Board + 15mm Siniat dB Board each side (inner + outer), twin frame of IS70/B Siniat I studs at 600mm centres, 50mm glass mineral wool. Rw+Ctr correction -8 dB. | 90 | 63 | 4000 | 4000 | 210 | Severe | 55 | |
| Twin(AB)-CS50R-215dB-50G(240) | 15mm Siniat dB Board + 15mm Siniat dB Board each side (inner + outer), twin frame of CS50/Rx Siniat C studs at 600mm centres, Siniat Acoustic V Brace, 50mm glass mineral wool. Rw+Ctr correction -6 dB. | 90 | 64 | 4000 | 6300 | 240 | Severe | 54 | |
| Twin(AB)-CS50R-215dB-50G(250) | 15mm Siniat dB Board + 15mm Siniat dB Board each side (inner + outer), twin frame of CS50/Rx Siniat C studs at 600mm centres, Siniat Acoustic V Brace + offcut, 50mm glass mineral wool. Rw+Ctr correction -6 dB. | 90 | 64 | 6000 | 6700 | 250 | Severe | 54 | |
| Twin(AB)-CS50R-215dB#15Sx15dB-50G(200) | Side A: 15mm Siniat Securtex + 15mm Siniat dB Board; Side B: 15mm Siniat dB Board + 15mm Siniat dB Board, twin frame of CS50/Rx Siniat C studs at 600mm centres, Siniat Acoustic V Brace, 50mm glass mineral wool. Rw+Ctr correction -9 dB. | 90 | 64 | 4000 | 5300 | 200 | Severe | 55 | |
| Twin(AB)-CS50R-215dB-100G(250) | 15mm Siniat dB Board + 15mm Siniat dB Board each side (inner + outer), twin frame of CS50/Rx Siniat C studs at 600mm centres, Siniat Acoustic V Brace + offcut, 100mm glass mineral wool. Rw+Ctr correction -6 dB. | 90 | 65 | 6000 | 6700 | 250 | Severe | 55 | |
| Twin(AB)-CS50R-215dB-100G(300) | 15mm Siniat dB Board + 15mm Siniat dB Board each side (inner + outer), twin frame of CS50/Rx Siniat C studs at 600mm centres, Siniat Acoustic V Brace + offcut, 100mm glass mineral wool. Rw+Ctr correction -6 dB. | 90 | 65 | 6000 | 7000 | 300 | Severe | 54 | |
| Twin(AB)-CS50R-215dB-50G(300) | 15mm Siniat dB Board + 15mm Siniat dB Board each side (inner + outer), twin frame of CS50/Rx Siniat C studs at 600mm centres, Siniat Acoustic V Brace + offcut, 50mm glass mineral wool. Rw+Ctr correction -9 dB. | 90 | 65 | 6000 | 7000 | 300 | Severe | 54 | |
| Twin(AB)-CS90W-215dB-100G(300) | 15mm Siniat dB Board + 15mm Siniat dB Board each side (inner + outer), twin frame of CS90/W Siniat C studs at 600mm centres, Siniat Acoustic V Brace + offcut, 100mm glass mineral wool. Rw+Ctr correction -6 dB. | 90 | 65 | 6000 | 8800 | 300 | Severe | 57 | |
| Twin(UB)-IS60B-215dB-100G(300) | 15mm Siniat dB Board + 15mm Siniat dB Board each side (inner + outer), twin frame of IS50/Rx Siniat I studs at 600mm centres, 100mm glass mineral wool. Rw+Ctr correction -6 dB. | 90 | 66 | 3600 | 3600 | 300 | Severe | 56 | |
| Twin(UB)-IS50R-315dB-100G(330) | 15mm Siniat dB Board + 2 x 15mm Siniat dB Board each side (inner + outer), twin frame of IS50/Rx Siniat I studs at 600mm centres, 100mm glass mineral wool. Rw+Ctr correction -6 dB. | 90 | 68 | 2800 | 2800 | 330 | Severe | 68 | |
| Twin(AB)-CS50R-15Md15dB-50G(200) | 15mm Siniat dB Board + 15mm Siniat Megadeco each side (inner + outer), twin frame of CS50/Rx Siniat C studs at 600mm centres, Siniat Acoustic V Brace, 50mm glass mineral wool. Rw+Ctr correction -8 dB. | 120 | 63 | 4000 | 5300 | 200 | Severe | 54 | |
| Twin(AB)-CS50R-15Un15dB-50G(200) | 15mm Siniat dB Board + 15mm Siniat Universal Board each side (inner + outer), twin frame of CS50/Rx Siniat C studs at 600mm centres, Siniat Acoustic V Brace, 50mm glass mineral wool. Rw+Ctr correction -8 dB. | 120 | 63 | 5000 | 5300 | 200 | Severe | 54 | |
| Twin(AB)-CS50R-215Un-50G(200) | 15mm Siniat Universal Board + 15mm Siniat Universal Board each side (inner + outer), twin frame of CS50/Rx Siniat C studs at 600mm centres, Siniat Acoustic V Brace, 50mm glass mineral wool. Rw+Ctr correction -8 dB. | 120 | 63 | 4000 | 5300 | 200 | Severe | 54 | |
| Twin(UB)-IS50R-215Un-50G(200) | 15mm Siniat Universal Board + 15mm Siniat Universal Board each side (inner + outer), twin frame of IS50/Rx Siniat I studs at 600mm centres, 50mm glass mineral wool. Rw+Ctr correction -8 dB. | 120 | 63 | 2800 | 2800 | 200 | Severe | 55 | |
| Twin(AB)-CS50R-215Ld-25G(200) | 15mm Siniat LaDura + 15mm Siniat LaDura each side (inner + outer), twin frame of CS50/Rx Siniat C studs at 600mm centres, Siniat Acoustic V Brace, 25mm glass mineral wool. Rw+Ctr correction -8 dB. | 120 | 64 | 4000 | 5300 | 200 | Severe | 64 | |
| Twin(AB)-CS50R-15Un15dB#15Sx15Un-50G(200) | Side A: 15mm Siniat Securtex + 15mm Siniat Universal Board; Side B: 15mm Siniat dB Board + 15mm Siniat Universal Board, twin frame of CS50/Rx Siniat C studs at 600mm centres, Siniat Acoustic V Brace, 50mm glass mineral wool. Rw+Ctr correction -9 dB. | 120 | 64 | 4000 | 5300 | 200 | Severe | 55 | |
| Twin(AB)-CS50R-15Md15dB-100G(250) | 15mm Siniat dB Board + 15mm Siniat Megadeco each side (inner + outer), twin frame of CS50/Rx Siniat C studs at 600mm centres, Siniat Acoustic V Brace + offcut, 100mm glass mineral wool. Rw+Ctr correction -6 dB. | 120 | 65 | 4000 | 6700 | 250 | Severe | 55 | |
| Twin(AB)-CS50R-15Un15dB-100G(250) | 15mm Siniat dB Board + 15mm Siniat Universal Board each side (inner + outer), twin frame of CS50/Rx Siniat C studs at 600mm centres, Siniat Acoustic V Brace + offcut, 100mm glass mineral wool. Rw+Ctr correction -6 dB. | 120 | 65 | 5000 | 6700 | 250 | Severe | 55 | |
| Twin(AB)-CS90W-15Md15dB-100G(300) | 15mm Siniat dB Board + 15mm Siniat Megadeco each side (inner + outer), twin frame of CS90/W Siniat C studs at 600mm centres, Siniat Acoustic V Brace + offcut, 100mm glass mineral wool. Rw+Ctr correction -6 dB. | 120 | 65 | 4000 | 8800 | 300 | Severe | 57 | |
| Twin(AB)-CS90W-315dB-200G(450) | 15mm Siniat dB Board + 2x15mm Siniat dB Board each side (inner + outer), twin frame of CS90/W Siniat C studs at 600mm centres, Siniat Acoustic V Brace + offcut, 200mm glass mineral wool. Rw+Ctr correction -5 dB. | 120 | 74 | 4000 | 12200 | 450 | Severe | 85 |
System references, build-ups and performance figures are Siniat's own data, reproduced here from Siniat Drywall Manual for reference only, with credit to Siniat.
Each reference links to Siniat's page for the full, current specification - always specify from Siniat's own documentation, HCI will not be held liable for a misspecification where this page has been used in lieu of the true manufacturer.
If you represent Siniat and have a query pertaining to this library, please email info@howeceilings.co.uk. Data retrieved 10 October 2026.
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