Dry Lining Cost Estimating: m² Rates for Partition, Lining and Ceiling — What Drives Price Up or Down

Summary

Drylining estimating requires understanding which variables have the biggest impact on cost. The board itself is rarely the main cost driver — labour is. A 70mm metal stud partition with standard board costs roughly the same in materials whether it is 10m² or 100m², but labour is proportional to area with adjustments for height, complexity, and access. For this reason, understanding your own labour productivity rates (m²/hour) and applying them to measured areas is more accurate than using published benchmark rates, which reflect industry averages.

This guide focuses on the UK trade rate structure — what factors drive rates up and down, and how to build an estimate from first principles. Published rates are benchmarks for sense-checking, not for quoting without local adjustment. Regional variation in the UK is significant: London and South East rates are typically 30–50% higher than equivalent rates in the Midlands or North.

Key Facts

• Materials cost — typically 30–40% of supply-and-fix rate; labour is 60–70%
• Standard WallBoard 12.5mm — approximately £6–8/m² supply only; 15mm FireLine £8–10/m²; 15mm SoundBloc £12–15/m²
• Stud and track (70mm CW/UW) — approximately £3–4/m² of partition (supply only)
• Acoustic quilt (100mm) — approximately £3–5/m² (supply only, unfaced mineral wool)
• DriWall Adhesive — approximately £1.50–2.00 per m² of board (supply only)
• Jointing and finishing — approximately £3–5/m² (compound and tape, supply only)
• Labour productivity — typical experienced dryliner: 10–15 m²/hr for fixing board; 5–8 m²/hr for jointing and taping; 3–5 m²/hr for fire/acoustic-rated partitions (more checking)
• Day rate — drylining sub-contractor: £250–350/day (2025, UK average); South East/London: £300–450/day
• Access — scaffold or tower hire, movement time, restriction to one-handed working — adds 25–50% to labour on anything above 3m
• Set-up overhead — allow 10–15% for skip hire, site preparation, fixing accessories, plant
• Overheads and margin — add 15–20% to prime cost for business overheads; 10–15% margin on top

Quick Reference Table

Rates are London/South East benchmarks, 2025. Deduct 25–35% for North/Midlands/Wales. Rates exclude VAT. Rates will vary significantly with contractor and project conditions.

Detailed Guidance

Building Up a Price from First Principles

For any drylining tender, build the price from a measured schedule rather than applying a single rate to the total area. Different elements of the same job have very different rates.

Step 1 — Produce a measured schedule:

Take off from drawings:

• Wall linings (m²): separate by type (standard, MR, insulated, fire-rated); include wall area minus openings
• Partitions (m²): one face area (m² of one side, not total area of both sides); separate by type
• Ceilings (m²): separate by type (direct fixed, MF, grid)
• Linear items (m): angle beads, reveals, perimeter angles, access panels
• Number of doors/openings (No.): each opening adds complexity; estimate 1 hr per opening for framing

Step 2 — Apply materials:

For each m² of board area:

• Board cost + 10–15% waste
• Stud and track: 1 linear metre of stud per 0.6m of partition height (at 600mm stud spacing); 0.25 kg/m² of screws approximately
• Jointing compound: approximately 0.15 kg/m² per coat (3 coats = 0.45 kg/m²)
• Acoustic quilt: 1m² of quilt per 1m² of cavity

Step 3 — Calculate labour hours:

Use your own productivity rates derived from past jobs, or use these starting points:

Step 4 — Apply adjustment factors:

Adjust labour hours for site conditions:

What Drives Price Up

1. Height: Above 2.4m, productivity drops because of the need for steps or hop-ups. Above 3.5m, tower scaffold is typically required, adding hire cost and move time. Above 5m, full scaffold at significant cost. Rule of thumb: every metre of height above 2.7m adds approximately 15–20% to the labour rate for that job.

2. Fire and acoustic ratings: Rated systems take more time because:

• More board layers (double or triple board)
• Perimeter sealing (acoustic mastic at every junction)
• Fire-stopping details (collars, putty, mineral wool)
• Back-box and service coordination (offset sockets, acoustic putty pads)
• Quality checking (tapping for hollows, checking stud fixing, confirming quilt coverage)
• Documentation (photos, certificates for building control)

A fire and acoustic rated partition (EI 60, 50 dB Rw) can cost 50–100% more than a standard non-rated partition.

3. Acoustic ceilings: An independent MF ceiling with resilient hangers, double board, and acoustic quilt is significantly more expensive than a direct-fixed ceiling. The hanger system takes time to install and adjust to level; the acoustic quilt must be placed above the ceiling before the second board layer. Labour rates for acoustic ceilings are typically 50–80% higher than for standard direct-fixed.

4. Access restriction: Working in restricted access (over occupied tenants, weekend work, dusty areas requiring protection of existing finishes) adds cost. Protection of floors, furniture, and openings; additional cleaning; restricted working hours all reduce productivity.

5. Small quantities: A single small room (<20m²) costs proportionally more per m² than a large open-plan commercial space. The set-up overhead (site visit, material delivery, small plant) is amortised over fewer m².

What Drives Price Down

1. Large open-plan runs: Long straight runs of partition in an empty open-plan shell allow high board-fixing productivity. Good line-of-sight, no obstacles, regular modular layouts. Commercial fit-out on a shell-and-core building is the most competitive environment for drylining.

2. Single type of work: A job where everything is the same specification (one stud size, one board type, standard layout) allows the team to get into a rhythm. Mixed jobs (some areas fire-rated, some standard, complex ceiling shapes) are inherently less efficient.

3. Good site conditions: Level floors, plumb walls, consistent ceiling heights, no interference from other trades, adequate storage and loading. Good site management that keeps the dryliner productive (materials delivered on time, ahead of first fix signing-off) is worth real money.

4. Material supply arrangements: If you have a regular account with a merchant and are buying at good prices, materials cost is predictable. If you are buying at retail or with minimal credit, materials add risk to the budget.

Pricing Jointing and Finishing

Jointing and finishing is often priced separately from board fixing. It is slower work (lower m²/hr) and requires a skilled operative — it is often the most visible quality indicator of the final job. Options:

• Include in the supply-and-fix rate (standard on commercial contracts)
• Exclude jointing and finishing (specified in commercial contracts where the painter does the final skim)
• Provide jointing to Level 4 (standard for decoration) vs Level 5 (premium, for high-sheen finishes)

In residential, clients typically expect a skim plaster finish over the boards, not jointing. If the spec is boarding + skim, price the boarding and jointing separately (or just the boarding), and subcontract the skim to a plasterer. Do not price jointing compound as a substitute for skim plaster — the two finishes are not equivalent.

Frequently Asked Questions

Should I measure drylining by one side or both sides of the partition?

Industry practice is to measure one face of a partition (one side of the wall) in m², then double the rate to account for boarding both faces — or explicitly measure both faces. Whichever convention you use, be consistent and clear in your tender. The most common approach in commercial drylining is to measure the area of one face and use a supply-and-fix rate that covers both faces of the partition.

How do I price the first few partitions in a new commercial fit-out where I'm uncertain of productivity?

Price cautiously and track actuals against budget. On new-to-you commercial fit-out, the unknowns are site conditions and specification complexity. Add 10–15% contingency to your estimated labour hours on the first tender for a new client or site type. Review actuals against budget weekly and adjust subsequent tenders accordingly. Don't buy the job with a low rate hoping conditions will improve — if you're losing money on drylining, you're working as a charity.

What should I include in a detailed drylining quotation?

A professional drylining quotation should include:

• Scope (what is included): specific partition types, heights, board specification, fire/acoustic rating if applicable
• Exclusions: jointing and finishing (if excluded), skim plastering, follow-on trades' penetrations/fire-stopping, scaffold
• Material specification: stud width and gauge, board type and thickness, quilt type if acoustic
• Assumptions: floor to be level within tolerance; first fix complete before boarding; adequate access; drawings to be issued with opening sizes confirmed
• Price breakdown (if required): materials, labour, plant, preliminaries
• Programme (approximate): start date, duration, dependencies on other trades

Regulations & Standards

• RICS NRM1 and NRM2 — RICS New Rules of Measurement; defines how drylining is measured in QS quantities

• Building Regulations Approved Documents B, E, L — the regulatory requirements that drive specification (and therefore price) upward for fire, acoustic, and energy compliance

• RICS Building Cost Information Service (BCIS) — benchmark construction cost data (subscription required)

• Building Cost Calculator (BCIS) — indicative cost benchmarks by element

• British Gypsum Specification Tool — generates specifications that can be used as the basis for a measured schedule

• british gypsum systems guide — system types that drive specification and cost

• metal stud partition installation — installation procedure affecting labour productivity

• building regs part b fire lining — fire-rated requirements that significantly increase cost

• pricing guide — general trade pricing principles and overhead calculation