How and where to use guide
Siniat Standard Plasterboard 2400mm x 1200mm x 12.5mm SE (72)
Typical applications
Use Siniat Standard Plasterboard for constructing non-load-bearing internal partition walls, lining existing masonry or timber walls, and forming suspended ceiling systems. The 12.5mm thickness is the industry standard for general-purpose internal work where fire performance and sound insulation are not critical requirements. It is commonly specified in residential properties, offices, and commercial interiors where a durable, smooth finished surface is needed.
- Internal partition walls on timber or metal stud framing
- Direct wall linings over brick, block or existing plaster
- Ceiling linings on timber joists or proprietary metal suspension systems
- Encasing service runs, pipes and ducts within walls
Installation and finishing
Fix the board to timber studs or metal track using galvanised or drywall screws spaced at 300mm centres, or use dabs of plasterboard adhesive for direct wall application. The square edge profile requires tape and joint compound (taping and jointing) to create seamless joints, or the entire surface can be skimmed with a thin coat of finish plaster for a uniform appearance. Ensure studs or supports are spaced to suit the board width and that all fixings are countersunk slightly below the surface to allow for joint treatment.
- Space fixings at 300mm centres maximum to prevent sagging
- Stagger joints between board layers to improve strength and reduce cracking
- Allow adhesive or joint compound to cure fully before decoration
- Protect edges and cut edges from impact during handling and installation
Limitations and site conditions
Standard Plasterboard is not suitable for wet areas such as bathrooms or kitchens without additional protection; use moisture-resistant board (MR) in these locations. The board is also not fire-rated; if fire performance is required, specify fire-resistant plasterboard. Store boards flat and dry on-site, protected from weather and moisture. Avoid installing in unheated or poorly ventilated spaces during cold, damp conditions as this can delay drying and cause surface defects.
- Not suitable for external use or exposed wet conditions
- Not fire-rated; use fire-resistant alternatives where required
- Requires proper ventilation during and after installation for joint compound curing
- Handle carefully to avoid damage to edges and corners
On-site handling and storage
Store boards horizontally on a flat, level surface indoors or under weatherproof cover. Keep them away from damp areas and ensure adequate air circulation to prevent moisture absorption. Transport boards flat to avoid bending or breaking. On site, use proper lifting techniques and avoid dropping or dragging boards, as damage to edges compromises joint quality and finish appearance. Allow boards to acclimatise to site temperature and humidity before installation.
- Store flat and dry; never stand boards on edge
- Keep away from direct contact with wet materials or damp ground
- Protect from site traffic and mechanical damage
- Allow 24 hours acclimatisation in heated spaces before fixing