Free UK dry lining estimating guide
How to Estimate Dry Lining: Plasterboard, Partitions & MF Ceilings
An accurate dry lining estimate starts with the right system and clear quantities. This contractor checklist covers board layers, stud partitions, suspended ceilings, material allowances, installation labour and the exclusions that belong in a quotation.
For UK dry lining subcontractors and estimators. This is general pricing guidance; always follow the project's approved drawings, specification and current manufacturer details.
1. Check the drawing and specification before measuring
A wall schedule tells you more than its length and height. Board build-up, insulation, fire and acoustic performance, framing and finishing can differ from one partition type to the next. Use the current drawings and record any information that needs clarification before pricing.
- Confirm the latest drawings, revisions, schedules and room or wall type references.
- Identify the specified manufacturer and wall or ceiling system; do not substitute a generic build-up.
- Record partition heights, access, head details, openings and any support or reinforcement requirements.
- Confirm acoustic, fire and thermal performance required by the design, including penetrations and junctions.
- Check who is responsible for insulation, vapour control, jointing, skimming, decoration and builders' work.
- Clarify delivery, storage, working hours, hoisting, waste, protection and site programme constraints.
2. Measure partition faces and board layers correctly
Start with partition length × height. For a wall boarded on both faces, calculate the specified layers on each face separately. Treat openings, tall panels, bulkheads, reveals and special details under the agreed measurement rules. Quantities used for buying sheets may differ from the net measured contract quantities because offcuts and sheet sizes matter.
Worked example: double-layer boarded partition
A straight partition 5 m long × 3 m high has 15 m² per face. If the design calls for two layers of plasterboard on both faces, nominal board coverage is 60 m² before openings and waste. For 1,200 × 2,400 mm boards (2.88 m² each), a hypothetical 10% buying allowance gives 66 m² ÷ 2.88 m² = 22.92, rounded up to 23 boards.
One face
5 × 3 = 15 m²
2 faces × 2 layers
15 × 4 = 60 m²
Example purchase allowance
23 boards
This example is illustrative, not a prescribed waste factor or cutting plan. Actual board quantities depend on openings, board orientation, sheet formats, staggering, specified build-up and the approved fixing layout. Framing, insulation and fixings require separate take-offs.
3. Build the dry lining estimate from complete costs
Keep labour, materials and supporting costs visible instead of assuming one generic £/m² rate covers every partition and ceiling type.
Boards
Calculate board area per face and per layer, then allow for sheet formats, openings, offcuts and damage. Board types and thicknesses follow the specified system.
Metal stud and track
Check length of partitions and heights, stud centres, framing around openings, deflection heads, movement provisions and any additional supports in the approved design.
Insulation and membranes
Measure insulation or other layers actually specified. Do not assume acoustic or fire performance from materials alone; the complete tested system matters.
Fixings and accessories
Include screws, sealants, tapes, beads, jointing products, adhesives and other approved accessories where required.
Labour and finishing
Allow separately for setting out, framing, board fixing, jointing or skimming, service coordination, working heights and final protection.
Access and programme
Price towers, platforms, material handling, out-of-hours constraints, phased handovers, congestion and revisits as applicable.
Overheads and margin
Allow for supervision, insurance, administration, transport and sustainable profit, not just operative rates.
Scope and variations
Record what drawings and revisions the price is based on, assumptions, exclusions, payment arrangements and how changes will be approved.
A practical cost build-up
Boards + framing + insulation and accessories + installation labour + access and waste + overheads + profit = price before any applicable VAT
Check the overall £/m² afterwards as a sense check, but keep the underlying quantities and assumptions available for any design changes.
4. Treat each dry lining system as a separate work type
Metal stud partitions, dot and dab, MF ceilings and performance-rated systems require different take-off items. Confirm the exact system design and use current technical documents.
Metal stud partitions
Measure each partition type by length and height. Account for both faces and the specified number of board layers, then cost tracks, studs, insulation, junctions, doors and openings as separate or fully described items.
Dot and dab wall linings
Confirm substrate, board type, cavity, adhesive method and any perimeter details. Allow for making good, service cut-outs, window returns and the manufacturer's installation method.
MF suspended ceilings
Measure ceilings by room or area and record the perimeter separately. The designed suspension depth, channel grid, hanger arrangement, board layers, access hatches, bulkheads and fire/acoustic requirements will change the estimate.
Fire-rated and acoustic systems
Use the exact tested or assessed build-up and project specification. Include specified boards, layers, framing centres, insulation, sealants, junction details and penetrations; do not promise a rating based solely on board selection.
5. Clarify what's included before you issue the quote
State the revision, system build-up, measured quantities and responsibilities clearly. Record provisional items and agree how layout changes, additional framing and services will be instructed and paid for.
- Identify drawings, specification revision and wall or ceiling type references.
- List partition lengths or measured areas and which faces and layers are included.
- State metal framing, insulation, board types, finishes and accessories included.
- Record door openings, bulkheads, access hatches and service interfaces.
- Confirm delivery, hoisting, protection, waste and working-hours assumptions.
- Make exclusions, provisional allowances, programme and variation terms clear.
Site-specific method statements, RAMS and installation approvals are separate from estimating. Confirm fire and acoustic requirements with the responsible designer and approved system documentation.
Keep the estimate, quotation and project record connected
SubCon Systems brings dry lining estimates, client quotations, variations, invoices and job documents into one connected workspace. Use it to organise job-specific quantities and assumptions, then manage the commercial record as work progresses.