A stud wall — also called a partition wall or stud partition — is the standard way to divide internal space in UK homes. It is a timber or steel frame, clad with plasterboard on both faces, and it can carry standard fixtures such as shelves, picture hooks, and light switches. It does not carry structural loads (it is a non-loadbearing partition), but it can achieve good acoustic and fire performance when correctly specified.
This guide covers a standard domestic timber stud partition from design to boarding, with current material costs and Building Regs requirements where they apply.
Do You Need Planning Permission or Building Regs?
Planning permission: Internal partitions do not require planning permission, provided you are not dividing a dwelling into separate units (which would be a material change of use).
Building Regs: Most internal stud walls in existing homes do not require Building Regs approval. Exceptions include:
- Walls that affect structural stability (e.g., trimming an opening in a loadbearing wall)
- Partitions that form part of a fire compartment (e.g., around a protected escape route or staircase — these need 30-minute fire resistance under Part B)
- Work that materially affects the fire safety of a building (flats, HMOs, conversions)
- Walls in a habitable conversion (e.g., a loft or garage conversion requires Building Regs for everything)
If uncertain, check with your LABC before starting.
Tools and Materials
Tools required:
- Tape measure, spirit level, pencil, chalk line
- Circular saw or mitre saw
- SDS drill with masonry bits (for fixing to concrete/block) or cordless drill/driver
- Stud finder or 50 mm nail (to locate existing joists)
- Hammer and pry bar
- Knee pad and safety glasses
Materials for a 3 m × 2.4 m stud wall (about 7.2 m²):
| Item | Specification | Quantity | Approx. unit cost | Total |
|---|---|---|---|---|
| Sole/head plate | 100 mm × 47 mm CLS, treated | 6 m | £2.20/m | £13 |
| Studs | 100 mm × 47 mm CLS, treated | 5 × 2.4 m lengths | £2.40/m | £29 |
| Noggins | 100 mm × 47 mm offcuts | ~4 per bay | From offcuts | — |
| Fixing screws/nails | M6 × 75 mm frame fixings; 3.5 × 75 mm woodscrews | 1 box each | £6–£10 | £12 |
| Plasterboard | 12.5 mm standard, 1.2 × 2.4 m boards | 8 sheets (both sides) | £7–£12 each | £60–£96 |
| Plasterboard screws | 3.5 × 35 mm | 1 box | £4 | £4 |
| Jointing tape and filler | Paper tape + setting compound | 1 roll, 1 bag | £15 | £15 |
| Acoustic or thermal insulation (optional) | 75 mm mineral wool slab | ~7 m² | £4–£6/m² | £28–£42 |
| Total materials | ~£140–£210 |
For a 7.2 m² wall, materials cost approximately £20–£30 per m². Add skim plaster coat (or decorator’s finishing) to get the wall paint-ready: typically £15–£25 per m² labour for a plasterer, or use a jointing/tape-and-fill system if you are finishing to a standard suitable for further decoration rather than a smooth skim.
Step-by-Step: Building the Frame
Step 1: Plan and Mark Out
Decide where the wall runs. Mark the floor plate position in pencil. Use a plumb bob or laser level to transfer the line to the ceiling — this is your head plate position. The floor and head plates must be exactly parallel vertically, or the wall will lean.
Mark the position of any door opening in the sole plate — you will not fix this section. Standard door widths are 686 mm, 762 mm, or 838 mm (fin. width); the frame opening must allow for the door lining plus clearance (typically 30–40 mm wider than the door leaf on each side).
Step 2: Fix the Sole Plate
Cut the sole plate to length. If fixing to a timber floor, screw into joists below (locate joists with a joist detector or 50 mm nail). If fixing to a concrete screed, use 6 mm × 60 mm frame fixings at 600 mm centres. Remove the sole plate section in the door opening after the frame is complete.
Step 3: Fix the Head Plate
Cut and fix the head plate to the ceiling joists above. Use 100 mm × 4.5 mm structural screws at 600 mm centres. If the head plate runs parallel to joists, you may need to add noggings between joists above to create a fixing surface — check joist direction before starting.
Step 4: Erect the End Studs
Fix a vertical end stud to each existing wall at the partition ends. Use a 600 mm spirit level to ensure both are perfectly plumb. For masonry or block walls, use 6 mm × 80 mm frame fixings at 600 mm centres. For existing timber stud walls, screw directly into the studs.
Step 5: Install Intermediate Studs
Mark stud centres on both sole and head plates. For 12.5 mm standard plasterboard, 600 mm centres are standard; for heavier plasterboard or acoustic/fire boards, 400 mm centres give stiffer boards and better fixity.
Cut each intermediate stud 3–5 mm short of the floor-to-ceiling height to allow for irregularities. Fit between plates with 90 mm × 3.4 mm ring-shank nails (skew-nailed at 45°) or frame cramps and screws. The stud must be tight against both plates.
Step 6: Add Noggins
Fit horizontal noggins between studs at mid-height to stiffen the frame and provide fixings for heavy items (radiators, wall-mounted TVs). Use 100 mm × 47 mm offcuts, alternating the position slightly so you can skew-nail from both sides. At 1,200 mm height, noggins also provide the horizontal joint support for plasterboard sheets fixed in a horizontal (landscape) orientation.
Step 7: Install Services
Run cables and plumbing (first-fix) through the frame before boarding. Drill 25 mm holes through studs at mid-depth for cables; maintain a minimum 25 mm from the face of the stud or use HSS steel plates to protect cables from screw penetration.
Step 8: Fit Insulation (Optional but Recommended)
For partitions between heated and unheated spaces (e.g., between a house and an integral garage), insulation is required under Part L. For internal partitions, 75 mm mineral wool batts between studs significantly improve airborne sound insulation (typically adding 5–8 dB to the wall’s acoustic performance) and are worth fitting even if not strictly required.
Step 9: Board and Finish
Fix 12.5 mm plasterboard with 3.5 × 35 mm drywall screws at 300 mm centres on studs and 150 mm on the perimeter. Stagger board joints between each face of the wall. Apply joint tape and filler (or arrange a skim plaster coat) before decorating.
Common Mistakes to Avoid
| Mistake | Consequence |
|---|---|
| Not checking the head plate is directly above the sole plate | Wall leans; boards bow |
| Fixing sole plate before checking for underfloor services | Nailing through pipes or cables |
| 600 mm centres with heavy tiles or cabinetry | Insufficient board fixity; sagging or cracking |
| No noggins at board joint height | Vertical board joints unsupported; cracking |
| Forgetting first-fix services before boarding | Boards must be removed to run cables |
| Ignoring fire separation requirements in conversions | Building Regs non-compliance; certificate not issued |
When to Call a Professional
Stud walls are well within the capability of a competent DIYer, but call a professional if: the wall is in a loft conversion or garage conversion (Building Regs compliance must be certified); the new partition connects to a loadbearing wall or affects an existing opening; you need fire compartmentation (Part B) compliance; or the wall runs over an underfloor heating mat (requires thermal bridging calculation).
