9.5mm Standard Plasterboard Wallboard is a gypsum-based board for lining internal walls and ceilings, and at 9.5mm it is the thinner and lighter of the two everyday plasterboard thicknesses. This tapered edge version is built for taping and jointing: the recessed long edges let you fill and tape the joints flush, for a smooth, seamless finish that is ready to paint without skimming the whole surface.

Each board measures 2400mm x 1200mm and covers 2.88m², a full standard sheet that lines up with 400mm and 600mm stud and joist centres. It is built around a non-combustible gypsum core bonded to an ivory paper face, which offers inherent fire resistance and takes a skim plaster finish or direct decoration once the joints are taped and filled. It fixes by screw to timber or metal stud frames, or by dot and dab adhesive directly to masonry, blockwork or brick.

The tapered edge is what sets this board apart from a square edge. Where two tapered boards meet, the shallow recess gives room for scrim tape and jointing compound to sit flush with the board face, so the finished joint disappears rather than standing proud. Being a 9.5mm board, its lighter weight is the other half of the story: it is easier to handle overhead, which is a large part of why the thinner board is favoured for ceilings and for lining tight spaces where a slimmer board is needed.

9.5mm tapered edge plasterboard suits ceilings, overboarding, patching and internal wall linings where a lighter, thinner board is wanted, and should be installed in line with the manufacturer's guidance and your project specification. Bear in mind that a thinner board can be more prone to sagging at wider joist centres, so fix at the centres your specification sets out. Where a job needs enhanced fire performance, acoustic insulation or moisture resistance, a specialist board is used instead.

Key Benefits of 9.5mm Tapered Edge Plasterboard:

9.5mm gypsum plasterboard, the thinner, lighter of the two everyday thicknesses, for internal walls and ceilings.
Tapered long edges designed for taping and jointing to a flush, seamless finish.
Lighter than a 12.5mm board, making it easier to lift and fix overhead on ceilings.
Ivory paper face ready for a skim plaster finish, paint or a textured finish.
Non-combustible gypsum core offering inherent fire resistance.
2400mm x 1200mm full sheet covering 2.88m², sized to suit 400mm and 600mm stud and joist centres.
Screw-fixes to timber or metal stud frames, or bonds to masonry, blockwork or brick by dot and dab.
Suited to ceilings, overboarding, patching and tight spaces where a slimmer board is needed.
Insulation UK own-brand board at competitive trade pricing, with bulk pricing available.

Good to know:

The lighter board. At 9.5mm it is easier to handle overhead than a 12.5mm sheet, which is why it is a common pick for ceilings; the trade-off is less rigidity, so mind the joist centres.
Tapered on the long edges only. The recess runs down the two long sides; cut ends and board ends butt together, so tape and fill those joints as you would any butt joint.
Made for tape and joint. For a flush, paint-ready finish, scrim tape and fill the recessed joints; skim the whole face instead if you prefer a plastered finish.
Not moisture resistant. For bathrooms, wet rooms or damp, unheated spaces, use a moisture-resistant board.
Not a rated fire board. Where a specified fire performance is required, use a fire-resistant board within a tested wall or ceiling system.
Store flat and dry. Keep boards flat, off the ground and out of the damp before fixing.

For a flush, paint-ready finish where a lighter, thinner board is the right call, 9.5mm tapered edge plasterboard keeps ceilings and linings quick to fix and easy to joint. If you need enhanced fire performance, acoustic insulation or moisture resistance, see our specialist plasterboard range, including acoustic plasterboard and fire-rated boards.

9.5mm Plasterboard