Fermacell Timber stud partitions
13 system references
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.
Non-load-bearing timber stud walls lined with fibre gypsum board or Powerpanel H₂O, single and twin frame, up to EI60 at 4 000 mm. Use the filter to narrow by performance or board.
| Reference | Build-up | Fire EN | Fire BS | Rw (dB) | Max height (mm) | Thickness (mm) | Mass (kg/m²) | |
|---|---|---|---|---|---|---|---|---|
| 1 H 13 (114 mm) | 114 mm wall. 89 × 38 timber studs (max. 600 mm centres) and head/base plates; 12.5 mm fibre gypsum each side; no mineral wool. | EI30 | – | 41 | 4000 | 114 | 36 | |
| 1 H 13 (100 mm) | 100 mm wall. 70 × 44 timber studs and head/base plates (horizontal joints must be nogged); 15 mm fibre gypsum each side; no mineral wool. Refer to fermacell Spandrel Panel datasheet. | – | F 60 | 41 | 4000 | 100 | 42 | |
| 1 H 17 (213 mm) | 213 mm wall. 2 × 89 × 38 (≥ 10 mm air gap) timber studs and head/base plates; 12.5 mm fibre gypsum each side; no mineral wool. | EI30 | – | 49 | 4000 | 213 | 41 | |
| 1 H 17 (275 mm) | 275 mm wall. 2 × 70 × 44 (≥ 10 mm air gap) timber studs and head/base plates; 12.5 mm fibre gypsum each side; no mineral wool. | EI30 | – | 49 | 4000 | 275 | 47 | |
| 1 H 21 | ≥ 139 mm wall. 89 × 38 timber studs and head/base plates; 2 × 12.5 mm fibre gypsum each side; mineral wool 90/10. | EI60 | 51 | 4000 | ≥ 139 | 68 | ||
| 1 H 22 | 114 mm wall. 89 × 38 timber studs and head/base plates; 12.5 mm fibre gypsum each side; mineral wool 70/35. | EI60 | – | 44 | 4000 | 114 | 38 | |
| 1 H 24 (≥ 213 mm) | ≥ 213 mm wall. 2 × 89 × 38 (≥ 10 mm air gap) timber studs and head/base plates; 12.5 mm fibre gypsum each side; mineral wool 70/35 (twin layer insulation may be used). | EI60 | – | 57 | 4000 | ≥ 213 | 43 | |
| 1 H 24 (≥ 175 mm) | ≥ 175 mm wall. 2 × 70 × 44 (≥ 10 mm air gap) timber studs and head/base plates; 12.5 mm fibre gypsum each side; mineral wool 70/35 (twin layer insulation may be used). | EI60 | – | 57 | 4000 | ≥ 175 | 43 | |
| 1 H 26 (≥ 200 mm) | ≥ 200 mm wall. 2 × 70 × 44 (≥ 10 mm air gap) timber studs and head/base plates; 12.5 + 10 or 2 × 12.5 mm fibre gypsum each side; mineral wool 90/10. | EI60 | – | 64 | 4000 | ≥ 200 | 64 | |
| 1 H 26 (≥ 238 mm) | ≥ 238 mm wall. 2 × 89 × 38 (≥ 10 mm air gap) timber studs and head/base plates; 2 × 12.5 mm fibre gypsum each side; mineral wool 90/10. | EI60 | – | 64 | 4000 | ≥ 238 | 64 | |
| 1 H 29 | 127 mm wall. 89 × 38 timber studs and head/base plates; 12.5 + 2 × 12.5 mm fibre gypsum each side; mineral wool 70/35. | EI60 | – | 46 | 4000 | 127 | 53 | |
| 1 H 21 H₂O (85 mm) | 85 mm wall. 60 × 40 timber studs and head/base plates; 12.5 mm Powerpanel H₂O each side; mineral wool 60/25. | EI60 | – | 42 | 4000 | 85 | 33 | |
| 1 H 21 H₂O (95 mm) | 95 mm wall. 70 × 44 timber studs and head/base plates; 12.5 mm Powerpanel H₂O each side; mineral wool 60/25. | EI60 | – | 42 | 4000 | 95 | 35 |
System references, build-ups and performance figures are Fermacell's own data, reproduced here from fermacell Specification Guide for reference only, with credit to Fermacell.
Each reference links to Fermacell's page for the full, current specification - always specify from Fermacell'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 Fermacell and have a query pertaining to this library, please email info@howeceilings.co.uk. Data retrieved 10 October 2026.
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