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acoustic doors on a school
acoustic doors in an office
acoustic doors in a hotel
Fire Resistance Icon

FD30

Fire Resistance
30 Minutes

Fire Resistance Icon

FD60

Fire Resistance
60 Minutes

Fire Resistance Icon

FD90

Fire Resistance
90 Minutes

Fire Resistance Icon

FD120

Fire Resistance
120 Minutes

Sound Test Icon

Acoustic

Acoustic Tests
up to 35 db rw

L & S Doors, expert manufacturers of acoustic doors, offer a wide range of doors with excellent soundproof features; we design, manufacture and install doors throughout the UK. Our acoustic doors are tested to ISO standards, and achieve an average level of sound reductions up to 43dB (decibels). However the industry is always testing new products to try and further increase this sound reduction within a timber door.

Our acoustic doors are suitable for a wide range of projects including schools, hospitals, factories, airports, theatres, hotels and heavy engineering operations. Working alongside industry leaders such as Norsound, enables us to offer you a comprehensive range of doors to suite every acoustic need and budget. Manufacturing our own doors, within our factory, allows us to add excellent soundproofing features; such as seals around the frame to stop sound penetrating around the door, and fantastic vision panels with excellent acoustic properties which also allow light through. Having the flexibility to manufacturer in house is one of the many reasons we are one of the UK's leaders in the door industry.

Acoustic Calculator

Acoustic calculator is brought to you from Norsound who manufacture specialist acoustic seals to be used in the joinery trade. Norsound and L & S Doors have forged a supply chain to bring the best products to work in conjunction with each other, providing unrivalled performance and expertise.

This application will figure out the acoustic resistance of a surface when a percent of the pre-mentioned surface has a different level of acoustic properties. As complicated as this sounds, it is relatively simple; if you have a wall that has a resistance of 60dB but has a door in it with a resistance of 30dB what will the overall resistance of the wall be?

Due to the nature of sound and the laws of attenuation this value has exponential growth. Complicated stuff! This is why we’ve taken it upon ourselves to simplify the process for you the customer and in partnership with Norsound have created the acoustic calculator. If you would like to find out more about the acoustic calculator please Contact Us.

Title dB Rating Manufacturer Door Type Thickness Max Fire Rating Glazed / Flush Threshold
43 Moralt Firesound 41 59 FD60 Both Step/Drop
40 Falcon Tri-Sound dB+ 54 FD60 Both Step
37 Halspan Optima 54 FD60 Both Drop
35 Halspan Optima 44 FD30 Glazed Step/Finns
35 Flamebreak 660 54 FD60 Glazed Step/Drop
34 Halspan Optima 44 FD30 Glazed Drop
34 Flamebreak 660 54 FD60 Glazed Drop
32 Flamebreak 660 54 FD60 Flush Flush
32 Halspan Optima 44 FD30 Flush Drop
32 Flamebreak 430 44 FD30 Glazed Drop
30 Flamebreak 430 44 FD30 Flush Step/Finns
29 Flamebreak 430 44 FD30 Flush Drop
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L&S Doors

partners

you

can

trust