Drywall, Stud & Track Materials Calculator (Plasterboard / Gypsum)
Accurately calculate drywall sheets (gypsum board), steel studs, tracks, screws, joint tape, and mud for partitions and suspended ceilings.
1. Wall or Ceiling Dimensions
2. Openings Deductions (Doors & Windows)
3. Board & Stud Framing Setup
Essentielle pour absorber les résonances intérieures et respecter les normes acoustiques.
Required Material Quantities to Order :
Net wall/ceiling area : 10.8 m² • Total drywall sheet surface : 23.8 m²
8
sheets (2.50×1.20 m)
4
3m tracks (9.2 m linéaires)
12
studs (30.0 m linéaires)
~541
2 screws
32 m / 9 kg
1 sac(s) d'enduit de 25 kg
12 m²
Épaisseur 45 mm (isolation acoustique)
How to accurately calculate drywall framing and plasterboard supplies?
Building a drywall partition or a suspended plasterboard ceiling requires accurate quantity surveying. From net wall surface to single vs double skin layers, stud spacing (16 or 24 inch on-center), tracks, screws, tape, and joint compound, each component follows strict building codes.
Key rules for building durable drywall partitions
1. 16-inch (40 cm) vs 24-inch (60 cm) stud spacing
60 cm (24 in) spacing is standard for standard residential walls. Choose 40 cm (16 in) spacing when wall height exceeds 2.80 m or when tiling heavy ceramic tiles in bathrooms.
2. Single skin vs Double skin boarding
Single layer on each side is the cost-effective standard (72 mm total thickness). Double layer boarding adds substantial acoustic mass (+5 to +8 dB) and 1-hour fire ratings.
3. Cutting waste factor
Always factor in 8% to 12% additional material for perimeter cutting waste, corner framing, and door trimmings.
Average consumption ratios of drywall materials per m²
Standard construction metrics for partition and ceiling assemblies
| Material | Single Layer Wall (72mm) | Double Layer Wall (98mm) | Suspended Ceiling |
|---|---|---|---|
| Drywall Boards (BA13) | 2.10 m² / m² wall | 4.20 m² / m² wall | 1.10 m² / m² |
| Perimeter Tracks (R48) | 0.80 linear m / m² | 0.80 linear m / m² | Perimeter / Area |
| Vertical Studs (M48) | 2.00 to 2.50 lin. m / m² | 2.00 to 2.50 lin. m / m² | 2.10 linear m / m² |
| Drywall Screws | 25 to 30 screws / m² | 35 to 45 screws / m² | 25 screws / m² |
| Paper Joint Tape | 1.40 linear m / m² | 1.40 linear m (face layer) | 1.40 linear m / m² |
| Joint Compound (Mud) | 0.35 to 0.40 kg / m² | 0.40 kg / m² | 0.35 kg / m² |
Frequently Asked Questions (FAQ) on Drywall and Stud Framing
What is the finished thickness of a drywall partition?
A standard single-layer partition with 48mm studs is 72 mm thick (12.5mm board + 48mm stud + 12.5mm board). A double-layer acoustic partition reaches 98 mm (25mm + 48mm + 25mm).
When should moisture-resistant (green board) drywall be used?
Moisture-resistant gypsum boards (green face paper) are mandatory in wet areas such as bathrooms, laundry rooms, and unheated basements to resist mold and humidity.
How should board joints be staggered?
Vertical joints must never align on opposite sides of a stud partition. In double-layer assemblies, the second layer must be offset by half a board width (60 cm) from the first layer.
How many screws are needed per drywall sheet?
Screws should be spaced 25 to 30 cm apart along studs and at least 1 cm from board edges. A standard 2.50 × 1.20 m sheet typically requires 28 to 32 screws.
About the Drywall & Stud Calculator & Material Estimation Guide
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