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Specialised Panel Products SPP
    Specialised Panel Products SPP
      Acoustic Panels

      Plywood Acoustic Panels

      Perforated Plywood

      Adjust & Improve Acoustic Levels

      Range of Decorative Finishes

      Fire Rated Options

      Perforated Plywood

      Adjust & Improve Acoustic Levels

      Range of Decorative Finishes

      Fire Rated Options

      Acoustic plywood panels in a school

      SPP Acoustic panelling is used in a wide variety of environments to adjust, treat and improve the acoustic levels within the area.

      Often used within theatres, sports halls, gymnasiums, concert halls and various public spaces, our boards offer a solution to the acoustics, as well as providing a bespoke decorative finish to any room.


      Available in a range of plywood with natural finishes in birch, pine, poplar and beech. Alternatively, our engineered range offers veneers, laminates and melamine finishes. 


      By combining our acoustic knowledge with joinery expertise we can supply a broad range of specifications and application requirements.

      Birch Plywood acoustic panels in a gym
      Birch Plywood acoustic panels in a gymnasium

      Birch plywood is ideal for sports areas due to its strength and impact resistance

      Plywood Acoustic Panels

      Perforated Plywood


      Adjust & Improve

      Acoustic Levels


      Range of

      Decorative Finishes


      Fire Rated Options

      Perforated Plywood

      Adjust & Improve Acoustic Levels

      Range of Decorative Finishes

      Fire Rated Options

      Acoustic plywood panels in a school

      SPP Acoustic panelling is used in a wide variety of environments to adjust, treat and improve the acoustic levels within the area.

      Often used within theatres, sports halls, gymnasiums, concert halls and various public spaces, our boards offer a solution to the acoustics, as well as providing a bespoke decorative finish to any room.


      Available in a range of plywood with natural finishes in birch, pine, poplar and beech. Alternatively, our engineered range offers veneers, laminates and melamine finishes. 


      By combining our acoustic knowledge with joinery expertise we can supply a broad range of specifications and application requirements.

      Birch Plywood acoustic panels in a gym
      Birch Plywood acoustic panels in a gymnasium

      Birch plywood is ideal for sports areas due to its strength and impact resistance

      Machining Patterns

      We know every project has a different visual and acoustic requirement - requiring both minimum open areas and maximum perforation sizes. We offer a range of standard profiles to cover most project requirements. With our cutting edge machinery we can offer bespoke patterns to suit any specialist need.

      H6-16 Acoustic Plywood
      H6-18.75 Acoustic Plywood
      H8-16 Acoustic Plywood
      H8-18.75 Acoustic Plywood

      Code: H6-16

      Code: H6-18.75

      Code: H8-16

      Code: H8-18.75

      Hole Diameter: 6mm

      Centres: 16mm

      Estimated Open Area: 11%

      Hole Diameter: 6mm

      Centres: 18.75mm

      Estimated Open Area: 8%

      Hole Diameter: 8mm

      Centres: 16mm

      Estimated Open Area: 20%

      Hole Diameter: 8mm

      Centres: 18.75mm

      Estimated Open Area: 14%

      H8-16s Acoustic Plywood
      H12-32 Acoustic Plywood
      H20-32 Acoustic Plywood
      SS8-16 Acoustic Plywood

      Code: H8-16s

      Code: H12-32

      Code: H20-32

      Code: SS8-16

      Hole Diameter: 8mm

      Centres: 16mm staggered

      Estimated Open Area: 10%

      Hole Diameter: 12mm

      Centres: 32mm

      Estimated Open Area: 11%

      Hole Diameter: 20mm

      Centres: 32mm

      Estimated Open Area: 30%

      Slot Width: 8mm

      Centres: 16mm

      Slot Length: 108mm

      SS8-32 Acoustic Plywood
      CS3-16 Acoustic Plywood
      CS3-32 Acoustic Plywood

      Code: SS8-32

      Code: CS3-16

      Code: CS3-32

      Bespoke

      Slot Width 8mm

      Centres: 32mm

      Slot Length: 108mm

      Face Groove: 3mm

      Reverse Perforation: 8mm

      Centres: 16mm

      Face Groove: 3mm
      Reverse Perforation: 10mm
      Centres: 32mm

      Call to discuss

      bespoke layouts

      Bespoke

      Machining Patterns

      We know every project has a different visual and acoustic requirement - requiring both minimum open areas and maximum perforation sizes. We offer a range of standard profiles to cover most project requirements. With our cutting edge machinery we can offer bespoke patterns to suit any specialist need.

      H6-18.75 Acoustic Plywood

      Code: H6-16

      Hole Diameter: 6mm

      Centres: 16mm

      Estimated Open Area: 11%

      H6-16 Acoustic Plywood

      Code: H6-18.75

      Hole Diameter: 6mm

      Centres: 18.75mm

      Estimated Open Area: 8%

      Code: H8-16

      Hole Diameter: 8mm

      Centres: 16mm

      Estimated Open Area: 20%

      Code: H8-18.75

      Hole Diameter: 8mm

      Centres: 18.75mm

      Estimated Open Area: 14%

      H8-16 Acoustic Plywood
      H8-18.75 Acoustic Plywood

      Code: H8-16s

      Hole Diameter: 8mm

      Centers: 16mm staggered

      Estimated Open Area: 10%

      Code: H12-32

      Hole Diameter: 12mm

      Centres: 32mm

      Estimated Open Area: 11%

      H8-16s Acoustic Plywood
      H12-32 Acoustic Plywood

      Code: H20-32

      Hole Diameter: 20mm

      Centres: 32mm

      Estimated Open Area: 30%

      Code: SS8-16

      Slot Width: 8mm

      Centres: 16mm

      Slot Length: 108mm

      H20-32 Acoustic Plywood
      SS8-16 Acoustic Plywood

      Code: SS8-32

      Slot Width: 8mm

      Centres: 32mm

      Slot Length: 108mm

      Code: CS3-16

      Face Groove: 3mm

      Reverse Perf: 8mm

      Centres: 16mm

      SS8-32 Acoustic Plywood
      CS3-16 Acoustic Plywood

      Code: SS8-32

      Sloth Width: 8mm

      Centres: 32mm

      Slot Length: 108mm

      Contact us to discuss

      bespoke machining

      CS3-32 Acoustic Plywood

      Bespoke

      Panels

      Birch Plywood

      European birch throughout plywood. A plain, light coloured panel with excellent strength. High quality face veneers produced to an environmentally friendly standard.

      Face Grades

      B Grade: high quality grade that presents a clean face with few natural variations minimal plugs/patches. Limited availability.

      Fine-Stipe: Birch core overlaid with strip birch veneers to provide a clean, plug free and knot free face.

      BB grade: unseen, reverse panel side with plugs/patches and other variations permitted.


      Our Birch Plywood Specifications Page has more details on face grading rules.


      Popular applications are Sports Halls, Lecture Theatres, Reception Areas and Retail Spaces.

      Decorative Pine Plywood

      European pine plywood

      An attractive, decorative panel

      Expertly specified and manufactured

      High grade rotary cut faces

      Carefully made core construction


      Face: I grade

      No filler and minimal plugs


      Reverse: II grade

      More rustic, allowing knots, plugs and filler

      Acoustic Perforated Pine Plywood Panel
      Pine Plywood Panel 8x4
      Pine Plywood Panel

      Poplar plywood

      Decorative & constructional

      Lighter weight panel - less dense than birch or pine

      Plain & neutral faces

      One-piece rotary cut faces

      No plugs or open defects


      Face: A grade

      Single rotary cut veneer, no plugs or filler

      Minimal discolouration


      Reverse: B grade

      Allows for some small knots and discolouration

      Acoustic Perforated Poplar Plywood Panel
      Poplar Plywood Panel 8x4
      Poplar Plywood Panel

      Beech faced plywood

      Decorative & constructional

      Tight-grained face veneer

      Eucalyptus core construction

      Plain & neutral faces

      One-piece rotary cut faces

      No plugs or open defects


      Face: A grade

      Single rotary cut veneer, no plugs or filler

      Minimal discolouration


      Reverse: B grade

      Allows for some small knots and discolouration

      Acoustic Perforated Beech Plywood Panel
      a silhouette of a man
      Beech Plywood Panel 8x4

      Poplar Plywood

      Beech Faced Plywood

      We veneer onto plywood or MDF


      Our standard range offers a cost-effective option and is shown below. Finished by our veneering factory, each of our veneer options are carefully selected to meet customer requirements. For projects requiring consistent colour and grain pattern between panels we offer a selection service where veneers are expertly matched by hand.

      From original concept to final production, we ensure all parties are happy and expectations are exceeded.


      Popular applications include Lecture Theatres, Hotel Lobby and Reception, Meeting Rooms, Offices.

    • Cherry Veneered Plywood
    • Sapele Veneered Plywood
    • Sapele Veneered Plywood
    • Walnut Veneered Plywood

      • Real Wood Veneers

      • Engineered Veneers (EV)

      EV is poplar or basswood timber, stained to mimic other species

      For projects requiring a very consistent finish with limited variation allowed on the specification

      Hundreds of styles available

      Laminates

      Panel Sizes

      As most projects are bespoke, we can offer any cut-size you require

      To reduce wastage and unnecessary cost, we suggest the majority of panels are made up from the sizes below

      All panel edges are trimmed first to improve dimensional tolerances, ensuring uniformity and straightness over a wide span of panels

      As most projects are bespoke, we can offer any cut-size you require

      

      To reduce wastage and unnecessary cost, we suggest the majority of panels are made up from the sizes below


      All panel edges are trimmed first to improve dimensional tolerances, ensuring uniformity and straightness over a wide span of panels

      * 1600mm is the maximum width for machined or perforated panels

      Solid MDF core panels can be offered up to 3600 x 1800

      High pressure laminate bonded to plywood or fibreboard.

      Robust and consistent finish.


      Hundreds of options:

      • Plain colours
      • Wood-grain
      • Stone effect
      • Metals
      Laminated Plywood for Acoustic Panels

      .

      Plywood/MDF

      Plywood

      MDF

      MDF

      Original Size

      2440 x 1220

      1525 x 3050

      3050 x 1220

      3660 x 1830

      Full Size

      2400 x 1200

      1500 x 3000

      3000 x 1200

      3600 x 1600*

      Half Size 1

      1200 x 1200

      1500 x 1500

      1500 x 1200

      1800 x 1600*

      Half Size 2

      2400 x 600

      750 x 3000

      3000 x 600

      3600 x 800

      Quarter Size

      1200 x 600

      750 x 1500

      1500 x 600

      1800 x 800

      Panels

      Birch Plywood

      European birch throughout plywood. A plain, light coloured panel with excellent strength. High quality face veneers produced to an environmentally friendly standard.

      Face Grades

      B Grade: high quality grade that presents a clean face with few natural variations minimal plugs/patches. Limited availability.


      Fine-Stipe: Birch core overlaid with strip birch veneers to provide a clean, plug free and knot free face.

      BB grade: unseen, reverse panel side with plugs/patches and other variations permitted.


      Our Birch Plywood Specifications Page has more details on face grading rules.


      Popular applications are Sports Halls, Lecture Theatres, Reception Areas and Retail Spaces.

      Decorative

      Pine Plywood

      European pine plywood

      An attractive, decorative panel

      Expertly specified and manufactured

      High grade rotary cut faces

      Carefully made core construction


      Face: I grade

      No filler and minimal plugs


      Reverse: II grade

      More rustic, allowing knots, plugs and filler

      Acoustic Perforated Pine Plywood Panel
      Pine Plywood Panel 8x4
      Pine Plywood Panel

      Poplar plywood

      Decorative & constructional

      Lighter weight panel - less dense than birch or pine

      Plain & neutral faces

      One-piece rotary cut faces

      No plugs or open defects


      Face: A grade

      Single rotary cut veneer, no plugs or filler

      Minimal discolouration


      Reverse: B grade

      Allows for some small knots and discolouration

      Acoustic Perforated Poplar Plywood Panel
      Poplar Plywood Panel 8x4
      Poplar Plywood Panel

      Beech faced plywood

      Decorative & constructional

      Tight-grained face veneer

      Eucalyptus core construction

      Plain & neutral faces

      One-piece rotary cut faces

      No plugs or open defects


      Face: A grade

      Single rotary cut veneer, no plugs or filler

      Minimal discolouration


      Reverse: B grade

      Allows for some small knots and discolouration

      Acoustic Perforated Beech Plywood Panel
      Beech Plywood Panel 8x4

      Poplar Plywood

      Beech Faced Plywood

      We veneer onto plywood or MDF


      Our standard range offers a cost-effective option and is shown below. Finished by our veneering factory, each of our veneer options are carefully selected to meet customer requirements. For projects requiring consistent colour and grain between panels we offer a selection service where veneers are expertly matched by hand.

      From original concept to final production, we will ensure all parties are happy and expectations are exceeded.


      Popular applications include Lecture Theatres, Hotel Lobby and Reception, Meeting Rooms, Offices.

    • Cherry Veneered Plywood
    • Sapele Veneered Plywood
    • Sapele Veneered Plywood
    • Walnut Veneered Plywood

      • Real Wood Veneers

      • Engineered Veneers (EV)

      EV is poplar or basswood timber, stained to mimic other species. For projects requiring a very consistent finish with limited variation allowed on the specification.

      Hundreds of styles available

      Laminates

      Panel Sizes

      As most projects are bespoke

      we can offer any cut-size you require


      To reduce wastage and unnecessary cost, we suggest the majority of panels are made up from the sizes below


      All panel edges are trimmed first to improve dimensional tolerances, ensuring uniformity and straightness over a wide span of panels


      Plywood / MDF Panel Sizes
      Original Size 2440 x 1220
      Full Size 2400 x 1200
      Half Size 1 1200 x 1200
      Half Size 2 2400 x 600
      Quarter Size 1200 x 600
      Plywood Panel Sizes
      Original Size 1525 x 3050
      Full Size 1500 x 3000
      Half Size 1 1500 x 1500
      Half Size 2 750 x 3000
      Quarter Size 750 x 1500
      MDF Panel Sizes
      Original Size 3050 x 1220
      Full Size 3000 x 1200
      Half Size 1 1500 x 1200
      Half Size 2 3000 x 600
      Quarter Size 1500 x 600
      MDF Panel Sizes
      Original Size 3660 x 1830
      Full Size 3600 x 1600*
      Half Size 1 1800 x 1600*
      Half Size 2 3600 x 800
      Quarter Size 1800 x 800

      * 1600mm is the maximum width

      for machined or perforated panels


      Solid MDF core panels can be offered

      up to 3600 x 1800

      Laminated plywood or fibreboard


      Hundreds of options:

      • Plain colours
      • Wood-grain
      • Stone effect
      • Metals
      Laminated Plywood for Acoustic Panels

      Finishing

      Detailing

      Fire Rated Maintaining Lacquer

      Contra-Burn® lacquer is offered in a matt finish to provide a natural touch.

      This maintains the EN13501-1 fire rated standard that is required in most new projects.

      Matt or gloss high strength lacquer provides a tactile finish to enhance and protect the panel.

      Standard Lacquer

      Acoustic Fleece

      Edges

      Borders

      A black viscose / polyester sheet bonded to the reverse
      Fibre-glass free, 180 microns, weighing 50g/m2
      Flame retarding class B1

      Offered square edged as standard

      Loose tongue & groove or chamfered available on request
      Factory finishing of edges available if required

      50mm borders is the default size

      Uniform border widths across different panel sizes create a visually pleasing finish

      Perforated Plywood for Acoustic panels

      Solid Panels

      Fixing

      Battens

      Laboratory Measurement of

      Random Incidence Sound Absorption to BS EN ISO 354:2003

      Tests & Standards

      Veneered Acoustic wall lining

      We can supply plain panels to compliment and contrast the acoustic panels.


      These panels will be the same production as the perforated panels and undergo the same finishing process to ensure consistency of colour, sheen and texture.


      On larger scale projects, we can offer contrasting solid panels to provide a visual break. This could be melamine, veneered or painted finishes.

      Screws

      Using a stainless steel screw and washer on the border edge of the panels at 300mm centres (24 fixings on outer border). This method makes a feature of the fixing and ideal if panels need removing to access ME services.

      Pinning

      Using a lost head nail to secure directly into supporting studwork behind at 300mm centres across all areas of the panels. This method provides a clearer face and a permanent fixing method.

      a diagram showing timber or machined plywood split battens and aluminum split battens

      Aluminium Split Battens

      A heavy-duty and robust split batten ideal for sports hall or heavy traffic areas where an accessible panel is required.


      Timber

      40-45mm thick. Standard construction CE marked timbers are generally used working to industry standard timber subframe requirements. This can be supplied as square or to a split batten detail to offer hidden fixing.


      Machined Plywood

      18mm thick Contra-Burn treated plywood. Best of both worlds: thin and strong, but lightweight and eco-friendly.

      a room with a long table and chairs and a wooden ceiling
      Machined panels for Acoustic Improvement

      Empty Room T1

      Empty Room T2

      Temperature 17.8 degrees C

      Temperature 17.4 degrees C

      Humidity 65%RH

      Humidity 71%RH

      Pressure 1013 mbar

      Pressure 1013 mbar

      Mounting Method A

      Sample Area: 11.91 m2

      Chamber Volume: 300m3

      Finishing

      Detailing

      Fire Rated Maintaining Lacquer

      Contra-Burn® lacquer is offered in a matt finish to provide a natural touch.

      This maintains the EN13501-1 fire rated standard that is required in most new projects.

      Matt or gloss high strength lacquer provides a tactile finish to enhance and protect the panel.

      Standard Lacquer

      Acoustic Fleece

      Edges

      Borders

      A black viscose / polyester sheet bonded to the reverse
      Fibre-glass free, 180 microns, weighing 50g/m2
      Flame retarding class B1

      Offered square edged as standard

      Loose tongue & groove or chamfered available on request
      Factory finishing of edges available if required

      Specify uniform border widths across different panel sizes for a visually pleasing finish

      Perforated Plywood for Acoustic panels

      Solid Panels

      Fixing

      Battens

      Laboratory Measurement

      of Random Incidence

      Sound Absorption to

      BS EN ISO 354:2003

      Tests & Standards

      Veneered Acoustic wall lining

      We can supply plain panels to compliment and contrast the acoustic panels.


      These panels will be the same production as the perforated panels and undergo the same finishing process to ensure consistency of colour, sheen and texture.

      

      On larger scale projects, we can offer contrasting solid panels to provide a visual break. This could be melamine, veneered or painted finishes.

      Screws

      Using a stainless steel screw and washer on the border edge of the panels at 300mm centres (24 fixings on outer border). This method makes a feature of the fixing and ideal if panels need removing to access ME services.

      Pinning

      Using a lost head nail to secure directly into supporting studwork behind at 300mm centres across all areas of the panels. This method provides a clearer face and a permanent fixing method.

      a diagram showing timber or machined plywood split battens and aluminum split battens

      Aluminium Split Battens

      A heavy-duty and robust split batten ideal for sports hall or heavy traffic areas where an accessible panel is required.


      Timber

      40-45mm thick. Standard construction CE marked timbers are generally used working to industry standard timber subframe requirements. This can be supplied as square or to a split batten detail to offer hidden fixing.


      Machined Plywood

      18mm thick Contra-Burn treated plywood.

      Best of both worlds: thin and strong, but lightweight and cost-friendly.

      Fire rated perforated plywood acoustic celings
      Machined panels for Acoustic Improvement

      Empty Room

      T1

      Empty Room

      T2

      Temperature 17.8 Celsius

      Temperature 17.4 Celsius

      Humidity

      65%RH

      Humidity

      71%RH

      Pressure

      1013 mbar

      Pressure

      1013 mbar

      Mounting Method A

      Sample Area: 11.91 m2

      Chamber Volume:

      300m3

      0.68

      0.95

      2500

      -

      315

      2.75

      6.44

      -

      400

      6.57

      630

      1600

      0.98

      80*

      6.06

      2.59

      1.01

      8.00

      4.83

      -

      2000

      1.00

      3.08

      5.56

      160

      5.40

      .

      T2

      Sec

      4.08

      63*

      7.24

      0.78

      -

      .

      T1

      Sec

      2.37

      500

      0.17

      5.21

      3.10

      0.67

      -

      200

      7.35

      0.60

      4.90

      2.49

      -

      0.87

      0.61

      -

      3.14

      1.07

      0.41

      -

      -

      -

      0.85

      2.94

      0.78

      0.90

      3.07

      -

      0.08

      1.19

      8.04

      4.50

      0.84

      4000

      0.46

      -

      1000

      2.65

      0.73

      3.49

      1.46

      6.24

      n/a

      3.29

      0.55

      1.47

      1250

      -

      4.19

      50*

      5000

      4.22

      0.55

      250

      Test 3

      -

      7.14

      6300*

      1.90

      2.34

      0.80

      3.02

      0.24

      4.06

      2.64

      .

      Freq

      Hz

      -

      2.92

      8.41

      3150

      800

      Practical

      Absorb

      Coeff. #

      . 

      Absorb

      Coeff.

      1.07

      0.58

      -

      0.61

      4.72

      6.11

      8.10

      125

      2.25

      5.92

      0.60

      0.68

      0.62

      100

      0.50

      1.07

      1.86

      8000*

      10000*

      n/a

      Test 3

      -

      .

      T2

      Sec

      4.83

      315

      2500

      2000

      50*

      -

      3.02

      2.65

      -

      0.41

      3.14

      4.08

      3.08

      -

      8000*

      -

      0.80

      2.25

      3.08

      -

      1.47

      3.14

      4.19

      -

      5.21

      250

      8000*

      2000

      n/a

      125

      -

      3.29

      1600

      2.65

      -

      1.01

      4.90

      6.06

      0.41

      0.62

      1.86

      0.46

      6.57

      1000

      -

      1.46

      0.60

      0.60

      .

      T1

      Sec

      -

      -

      4.19

      0.58

      63*

      400

      0.98

      2.64

      2.37

      6.57

      10000*

      6300*

      63*

      a graph showing the sound absorption coefficient

      n/a

      1.01

      1.19

      1000

      0.73

      0.60

      -

      -

      0.85

      2.25

      630

      1.86

      2.49

      4000

      3.10

      -

      -

      -

      0.78

      0.67

      0.08

      0.95

      -

      4.72

      0.55

      0.17

      4.06

      1.07

      8.41

      -

      1.07

      n/a

      4.22

      5000

      2.49

      0.61

      .

      Freq

      Hz

      Test 3

      50*

      8.10

      2.92

      0.67

      0.24

      -

      125

      630

      . 

      Absorb

      Coeff.

      -

      100

      400

      1.47

      -

      6.44

      5.21

      0.78

      1.07

      315

      1.07

      . 

      Absorb

      Coeff.

      5.92

      4.50

      3.49

      -

      4.90

      8.10

      Practical

      Absorb

      Coeff. #

      6.24

      0.90

      7.14

      -

      0.55

      -

      100

      n/a

      6.44

      5.56

      0.84

      0.58

      3150

      2.94

      80*

      -

      1.07

      0.85

      7.24

      0.98

      0.61

      .

      Freq

      Hz

      Practical

      Absorb

      Coeff. #

      800

      3.10

      0.84

      1.90

      3.02

      0.61

      4000

      2.59

      6.11

      0.55

      3150

      4.83

      10000*

      1600

      160

      2.75

      2.92

      0.17

      8.41

      0.08

      8.00

      3.07

      1.90

      5.56

      1250

      4.50

      1.00

      800

      6.24

      -

      4.72

      1.00

      1.07

      500

      250

      2.34

      7.14

      200

      -

      0.87

      8.04

      5.40

      6.06

      0.46

      0.78

      0.50

      0.24

      3.29

      5.92

      5.40

      4.22

      1.46

      5000

      0.95

      1.19

      -

      0.90

      -

      2.59

      160

      2.75

      3.07

      0.62

      .

      T1

      Sec

      2.34

      200

      .

      T2

      Sec

      -

      2500

      4.06

      2.94

      0.80

      0.50

      500

      7.24

      2.37

      8.04

      0.60

      0.87

      80*

      0.68

      3.49

      -

      4.08

      1250

      0.68

      0.68

      0.55

      0.78

      0.61

      0.68

      2.64

      6.11

      6300*

      7.35

      7.35

      8.00

      0.73

      Sound Absorption

      Independently tested standard perforations to meet BS 8233:2014. We work with clients, architects and designers to achieve the acoustic rating and visual aesthetics required for the project.


      Acoustic absorption is achieved by sound waves passing through the open area in our panels and baffled by the acoustic fleece behind. Our standard range of machining patterns achieves a high Class C rating (with potential for a higher rating using bespoke machining or additional insulation behind the panels)


      ISO 11654:1997 Acoustics – Sound absorbers for use in buildings – Rating of sound absorption

      Testing terminology - BS EN ISO 354:2003 Acoustics. Measurement of sound absorption in a reverberation room

      The material’s ability to absorb sound is generally presented with absorption coefficients measured in different frequencies. This means in practice that one material has a number of different absorption coefficients based on frequencies.

      When specifying a suitable absorption class for each product, a product is first measured according to EN ISO 354:2003. The result from this test is an absorption curve, which declares absorption coefficients for each frequency used in the test.

      Fire Retardancy

      When looking at a project the risk of fire is a key focus point for any design. With the harmonized standards of BS EN 13501 construction products are classified dependent upon their risk, with A being non combustible and F being flammable.


      Within every build there is a requirement to meet a minimum standard with a requirement of Euro Class B in most non residential projects such as sports halls and education facilities. This is also combined with a minimum standard for smoke graded from 0-3 and flaming droplets graded from 0-3.


      Due to our experience within the fire retardancy market we can offer over 90% of our panel options to Euro B-s2,d0 where fire protection is required. Our system is independently tested and we can offer compatible finishing coatings to offer a product that will last the test of time.

      The standard will be displayed as Euro B-s1,d0

      Fire Classification Details

      Panels

      Every panel we supply is subject to a wide range of testing requirements including:

       

      Environmental Rating

      All boards comply to both EUTR and UKTR requirements and where required can be offered as FSC or PEFC certified.

       

      Board Structure

      This includes a declaration of performance from the producing mill and contains key information such as glue type, board strength, board density and use class.

       

      Face Grades

      We offer our panels with defined face grades, these meet set standards in terms of appearance and have guidelines on allowable natural defects such as knots, fillers and colour variation.

      Additional Services

      For over 25 years we have supplied acoustic sheet material to the market. We know that service and experience is just as important as the high quality product supplied for your project.


      Please speak to our team for further information on:


      Project Discussions

      Arrange an online video call with our team to discuss your project in detail - including budgets, timescale and specification.


      Project Specification

      Discuss your requirements in detail with our team who can advise on options and provide feedback on NBS specification.


      Take-Off

      Our team can review details with you to provide support when reviewing requirements.


      Technical

      Draw on our broad knowledge of panel products & timber. Our team can discuss technical aspects of your project including fixing and finishing details.


      Specialist Packing

      Part labelling - numbered as per your elevations for easy installation.

      Sequential packing / elevation separation - packed in order of installation sequence to help with project scheduling.


      Bespoke Supply Service

      FORS, CLOCS, multi-drop JIT deliveries - our team can meet your site delivery requirements.

      a graph showing the absorption coefficient of different types of sound .

      αw
      1.00-0.95-0.90
      0.85-0.80
      0.75-0.70-0.65-0.60

      0.55-0.50-0.45-0.35-0.30
      0.25-0.20-0.15
      0.10-0.05-0.00

      Zero represents no absorption

      Sound Absorption Class
      A
      B
      C
      D
      E
      Not Classified

      Fire Classification Diagram

      A1

      A2-s1,d0

      B-s1,d0

      B-s2,d0

      B-s3,d0

      C-s1,d0

      C-s2,d0

      C-s3,d0

      D-s1,d0

      D-s2,d0

      D-s3,d0

      E-d2

      F

      

      Non Combustible

      Mineral based products or those with very low organic content

      Low Combustibility

      Organic products with high levels of additives to resist fire

      Difficult Combustion

      Fire retardant organic materials

      Medium Combustion

      Organic products protect from flame or self-extinguishing

      Flammable or unclassified

      Euro

      B

      Combustibility

      Smoke

      Droplets

      s1

      d0

      -

      4.72

      5.21

      4.08

      0.17

      n/a

      4.90

      6.11

      7.24

      8.04

      7.35

      8.00

      8.41

      8.10

      7.14

      6.24

      4.50

      4.19

      4.22

      3.49

      3.02

      3.07

      2.75

      2.49

      2.37

      0.24

      0.41

      0.46

      0.62

      0.84

      0.85

      0.98

      1.07

      1.07

      -

      -

      1.00

      -

      -

      0.50

      -

      -

      0.90

      50*

      63*

      80*

      100

      125

      160

      200

      1000

      1250

      1600

      8000*

      1.47

      1.90

      2.59

      3.29

      4.06

      4.83

      5.40

      5.92

      6.44

      6.57

      6.06

      5.56

      1.19

      1.46

      1.86

      2.25

      2.65

      2.94

      3.08

      3.14

      3.10

      2.92

      2.64

      2.34

      0.78

      0.73

      0.67

      0.61

      0.55

      0.55

      0.58

      0.61

      0.68

      0.78

      0.87

      1.01

      n/a

      -

      -

      0.60

      -

      -

      0.60

      -

      -

      0.80

      -

      -

      10000*

      1.07

      0.95

      0.68

      -

      4000

      5000

      2000

      2500

      6300*

      3150

      250

      315

      400

      500

      630

      800

      0.08

      .

      Freq

      Hz

      .

      T1

      Sec

      .

      T2

      Sec

      . 

      Absorb

      Coeff.

      Practical

      Absorb

      Coeff. #

      Test 3

      αw 0.70 (LM)

      Class C to EN ISO 11654:1997

      NCR 0.80

      calculated to ASTMC 423-01

      * denotes frequencies outside the range

      covered by BS EN ISO 354:2003

      T1 - empty room reverberation time

      T2 - room reverberation time with sample

      # Practical absorption coefficient

      BS EN ISO 11654:1997

      Sound Absorption Coefficient Chart

      We deliver throughout the UK

      Contact us for more details or a quote:

      01992 410333

      panels@spp.co.uk

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