12.5mm Standard Plasterboard Wallboard (Square Edge) 2.4m x 1.2m - 2.88m2 per board
12.5mm Standard Plasterboard Wallboard is a gypsum-based board for lining internal walls and ceilings, and at 12.5mm it is the standard, general-purpose thickness used across most UK drylining. It gives a smooth, flat surface ready to take a plaster skim or direct decoration, and its extra thickness over a 9.5mm board brings more rigidity and a more solid feel to a finished wall.
Each board measures 2400mm x 1200mm and covers 2.88m², a standard sheet size that lines up neatly with 400mm and 600mm stud and joist centres. It is built around a non-combustible gypsum core bonded to paper liners, with a square edge on all sides. That combination makes it a straightforward, all-round board for partitions, wall linings and ceilings where standard performance is what the job calls for.
The square edge is the feature to note. Rather than the tapered recess made for tape and jointing, a square edge butts board to board, which suits surfaces that will be skim plastered across the whole face, or given a textured finish or direct decoration where a jointed flush seam is not the priority. It is the board to use where a plasterer is skimming the wall anyway.
12.5mm square edge plasterboard is screw-fixed to timber or metal framework, or bonded to masonry with dot-and-dab adhesive, and should be installed in line with the manufacturer's guidance and your project specification. It suits internal partitions, wall linings and ceilings in both domestic and commercial work where standard board performance is required, rather than applications that call for rated fire, moisture or acoustic boards. As the default thickness for walls, it keeps the bulk of a drylining job on one dependable board.
Key Benefits of 12.5mm Standard Plasterboard:
- 12.5mm gypsum plasterboard, the standard general-purpose thickness for internal walls and ceilings.
- Non-combustible gypsum core bonded to paper liners, ready for a plaster skim or direct decoration.
- Square edge suited to skim plastering, textured finishes or direct decoration across the full surface.
- More rigid and robust than a 9.5mm board, for a solid-feeling wall.
- 2400mm x 1200mm board covering 2.88m², sized to suit 400mm and 600mm stud and joist centres.
- Screw-fixes to timber or metal framing, or bonds to masonry by dot-and-dab.
- Manufactured to BS EN 520, the product standard for gypsum plasterboard.
- Suited to partitions, wall linings and ceilings in domestic and commercial drylining.
- Insulation UK own-brand board at competitive trade pricing, with bulk pricing available.
Good to know:
- Not moisture resistant. For bathrooms, wet rooms or damp, unheated spaces, use a moisture-resistant board instead.
- Not a rated fire board. Where a specified fire performance is required, use a fire-resistant board within a tested wall or ceiling system.
- Square edge, not tapered. For a flush, tape-and-jointed painted finish, choose a tapered edge board; this square edge board is made to be skimmed or textured over.
- Store it flat and dry. Keep boards flat, off the ground and out of the damp before fixing, and lift with two people.
- Cut by score and snap. Score the face, snap the core, then cut the back liner, and fix to framing at the centres set out in your specification.
For the majority of internal walls and partitions, 12.5mm standard plasterboard is the board to reach for first: rigid, easy to finish and ready for whatever surface treatment follows. Order yours from Insulation UK with competitive pricing and free UK delivery available on qualifying orders.
Product Information
Product Information
Shipping & Returns
Shipping & Returns

12.5mm Standard Plasterboard Wallboard (Square Edge) 2.4m x 1.2m - 2.88m2 per board
12.5mm Standard Plasterboard Wallboard (Square Edge) 2.4m x 1.2m - 2.88m2 per board
12.5mm Standard Plasterboard Wallboard is a gypsum-based board for lining internal walls and ceilings, and at 12.5mm it is the standard, general-purpose thickness used across most UK drylining. It gives a smooth, flat surface ready to take a plaster skim or direct decoration, and its extra thickness over a 9.5mm board brings more rigidity and a more solid feel to a finished wall.
Each board measures 2400mm x 1200mm and covers 2.88m², a standard sheet size that lines up neatly with 400mm and 600mm stud and joist centres. It is built around a non-combustible gypsum core bonded to paper liners, with a square edge on all sides. That combination makes it a straightforward, all-round board for partitions, wall linings and ceilings where standard performance is what the job calls for.
The square edge is the feature to note. Rather than the tapered recess made for tape and jointing, a square edge butts board to board, which suits surfaces that will be skim plastered across the whole face, or given a textured finish or direct decoration where a jointed flush seam is not the priority. It is the board to use where a plasterer is skimming the wall anyway.
12.5mm square edge plasterboard is screw-fixed to timber or metal framework, or bonded to masonry with dot-and-dab adhesive, and should be installed in line with the manufacturer's guidance and your project specification. It suits internal partitions, wall linings and ceilings in both domestic and commercial work where standard board performance is required, rather than applications that call for rated fire, moisture or acoustic boards. As the default thickness for walls, it keeps the bulk of a drylining job on one dependable board.
Key Benefits of 12.5mm Standard Plasterboard:
- 12.5mm gypsum plasterboard, the standard general-purpose thickness for internal walls and ceilings.
- Non-combustible gypsum core bonded to paper liners, ready for a plaster skim or direct decoration.
- Square edge suited to skim plastering, textured finishes or direct decoration across the full surface.
- More rigid and robust than a 9.5mm board, for a solid-feeling wall.
- 2400mm x 1200mm board covering 2.88m², sized to suit 400mm and 600mm stud and joist centres.
- Screw-fixes to timber or metal framing, or bonds to masonry by dot-and-dab.
- Manufactured to BS EN 520, the product standard for gypsum plasterboard.
- Suited to partitions, wall linings and ceilings in domestic and commercial drylining.
- Insulation UK own-brand board at competitive trade pricing, with bulk pricing available.
Good to know:
- Not moisture resistant. For bathrooms, wet rooms or damp, unheated spaces, use a moisture-resistant board instead.
- Not a rated fire board. Where a specified fire performance is required, use a fire-resistant board within a tested wall or ceiling system.
- Square edge, not tapered. For a flush, tape-and-jointed painted finish, choose a tapered edge board; this square edge board is made to be skimmed or textured over.
- Store it flat and dry. Keep boards flat, off the ground and out of the damp before fixing, and lift with two people.
- Cut by score and snap. Score the face, snap the core, then cut the back liner, and fix to framing at the centres set out in your specification.
For the majority of internal walls and partitions, 12.5mm standard plasterboard is the board to reach for first: rigid, easy to finish and ready for whatever surface treatment follows. Order yours from Insulation UK with competitive pricing and free UK delivery available on qualifying orders.
Original: $9.12
-65%$9.12
$3.19Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
12.5mm Standard Plasterboard Wallboard is a gypsum-based board for lining internal walls and ceilings, and at 12.5mm it is the standard, general-purpose thickness used across most UK drylining. It gives a smooth, flat surface ready to take a plaster skim or direct decoration, and its extra thickness over a 9.5mm board brings more rigidity and a more solid feel to a finished wall.
Each board measures 2400mm x 1200mm and covers 2.88m², a standard sheet size that lines up neatly with 400mm and 600mm stud and joist centres. It is built around a non-combustible gypsum core bonded to paper liners, with a square edge on all sides. That combination makes it a straightforward, all-round board for partitions, wall linings and ceilings where standard performance is what the job calls for.
The square edge is the feature to note. Rather than the tapered recess made for tape and jointing, a square edge butts board to board, which suits surfaces that will be skim plastered across the whole face, or given a textured finish or direct decoration where a jointed flush seam is not the priority. It is the board to use where a plasterer is skimming the wall anyway.
12.5mm square edge plasterboard is screw-fixed to timber or metal framework, or bonded to masonry with dot-and-dab adhesive, and should be installed in line with the manufacturer's guidance and your project specification. It suits internal partitions, wall linings and ceilings in both domestic and commercial work where standard board performance is required, rather than applications that call for rated fire, moisture or acoustic boards. As the default thickness for walls, it keeps the bulk of a drylining job on one dependable board.
Key Benefits of 12.5mm Standard Plasterboard:
- 12.5mm gypsum plasterboard, the standard general-purpose thickness for internal walls and ceilings.
- Non-combustible gypsum core bonded to paper liners, ready for a plaster skim or direct decoration.
- Square edge suited to skim plastering, textured finishes or direct decoration across the full surface.
- More rigid and robust than a 9.5mm board, for a solid-feeling wall.
- 2400mm x 1200mm board covering 2.88m², sized to suit 400mm and 600mm stud and joist centres.
- Screw-fixes to timber or metal framing, or bonds to masonry by dot-and-dab.
- Manufactured to BS EN 520, the product standard for gypsum plasterboard.
- Suited to partitions, wall linings and ceilings in domestic and commercial drylining.
- Insulation UK own-brand board at competitive trade pricing, with bulk pricing available.
Good to know:
- Not moisture resistant. For bathrooms, wet rooms or damp, unheated spaces, use a moisture-resistant board instead.
- Not a rated fire board. Where a specified fire performance is required, use a fire-resistant board within a tested wall or ceiling system.
- Square edge, not tapered. For a flush, tape-and-jointed painted finish, choose a tapered edge board; this square edge board is made to be skimmed or textured over.
- Store it flat and dry. Keep boards flat, off the ground and out of the damp before fixing, and lift with two people.
- Cut by score and snap. Score the face, snap the core, then cut the back liner, and fix to framing at the centres set out in your specification.
For the majority of internal walls and partitions, 12.5mm standard plasterboard is the board to reach for first: rigid, easy to finish and ready for whatever surface treatment follows. Order yours from Insulation UK with competitive pricing and free UK delivery available on qualifying orders.






















