Plasterboard Stud Wall Calculator (UK & USA)

This calculator estimates the number of plasterboards, timber studs, and fixings required to build a standard internal stud wall. Whether you're converting a bedroom in Birmingham or framing a basement in Boston, it has you covered.

Technical Guidance

• 🇬🇧 UK: Standard plasterboard size is 2400mm x 1200mm.
• 🇺🇸 USA: Standard drywall sheet size is 8ft x 4ft (1219mm x 2438mm).
• Stud spacing: 400mm or 600mm centres depending on wall load.

Materials Table

Example Estimation

For a 3m x 2.4m wall:

• Wall area = 7.2m² (77 ft²)
• Boards needed: 3–4 (add 10% waste)
• Timber: ~6 vertical studs + 2 horizontal rails
• Screws: 90–120 depending on board count

Pro Tips

• Buy moisture-resistant boards for kitchens/bathrooms.
• Allow extra timber for noggins and door framing.
• Use insulation between studs for soundproofing or thermal upgrade.

Common Mistakes

• Not factoring waste or off-cuts into board count.
• Over-spacing studs leads to bowing or sagging walls.
• Wrong screw length can puncture board or miss timber.

FAQs

• How many boards for a 10m² wall?
  Roughly 4–5 boards (UK size) with 10% waste margin.
• Can I double-board for soundproofing?
  Yes, just factor in extra weight and fixings.
• Is 600mm stud spacing OK?
  Yes for most domestic walls, use 400mm for added strength.