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PuraSoundAcoustic Rated Doorsets

Acoustic rated internal timber doorsets for Non-fire, FD30 and FD60, available for sound attenuation ratings up to 43dB. As with all our doorsets, these are available the complete spectrum of finishes and sizes and can be made with corresponding acoustic vision panels and screens where required

Whilst all doors will offer a level of sound attenuation, there is increasing awareness and compliancy requirements to achieve in the construction of doorsets and screens to restrict the passage of sound. Dorplan’s PuraSound timber doorsets can be supplied with a variety of door cores, seals and glazing types to achieve dB ratings up to 43dB.

Acoustic perimeter seals are often combined with intumescent strips where on fire doors but surface fit options are available. Automatic drop seals are installed into the bottom of such doors and concealed form view. When the door closes into the frame, a projecting lug in the jamb is pushed in by the frame and a neoprene seal drops to cover the gaps between the door and the finished floor. This also is beneficial for draughts, light penetration and odour barriers.

PuraSound31 – 31db/RW 44mm Solid core door construction, with appropriate drop seal and perimeter seals. Suitable for FD30 applications

PuraSound35 – 35dB/RW 54mm Solid core door construction, with appropriate drop seal and perimeter seals. Suitable for FD30/FD60 applications

PuraSound40 – 40dB/RW 54mm Specialist acoustic core construction and seals. Suitable for FD30/FD60 applications

PuraSound43 – 43dB/RW 59mm Specialist acoustic core construction and seals. Suitable for FD30/FD60 applications


The benefits that having doors pre-hung in frames with relevant hardware morticing works carried out in the factory is increasingly seen as the obvious solution to the demands on contractors. This reduces the labour force required on site, the level of skill required to install, the management resources required to oversee and the installation time required on site. This all helps in projects where programmes are tight and excellence of carpentry works is borne by CNC machinery in the factory which take the onus of responsibility from site level to production level.

Servicing items available:

  • Hinges- all types including concealed Tectus and Soss hinges
  • Floor springs and pivot accessories
  • Concealed jamb and overhead door closers
  • Flush bolts
  • Mortice locks, latches, and card access control lockcases
  • Multipoint security entrance door locks, letter plates and door viewers
  • Sliding door recesses, flush handle recesses
  • Fire and acoustic integrity seals.

Doors can be delivered in their frames for simple quick installation or as often required, frames can be delivered ahead of doors so surrounding trades can continue, doors are delivered later and fixed into the prepared frames reducing the risk of damage to doors by arriving late on in the project.

The balance of ironmongery where not installed to the doors is packed according to schedules in doorsets boxes , labelled and delivered to site for easy access and installation by the carpentry team.


‘We care’

FSC® /PEFC. Dorplan is fully accredited to supply doorsets with FSC® (Forestry Stewardship Council) accreditation cover. 

Certificate number TT-COC-005225 

ISO14001 – Dorplan’s production line operates within the environmental and procedure requirements of ISO14001.

PuraSound Doorsets are supplied with assembled frames. Doors can be factory hung into the frames or supplied separately.

Frame Section Details

The main options of frame designs are:

Standard: This comprises of linings, and separate stop

Rebated: Single rebated frame section

Split Frame: Primary frame with door hinged on with adjoining secondary frame and loose stop

Frame Material

Redwood: (Softwood) most commonly used material for paint finish applications, offering good fixing and ease of machining. Suitable for fire and acoustic doorsets.

Hardwood: used where durability and security are paramount. For internal or external use. A wide variety of species is available and can be used to compliment the door finish using lacquering or staining processes. Suitable for fire and acoustic doorsets.

MDF: A low cost solution providing a smooth finish for final decoration. Suitable for fire rated doorsets.


The passage of light permeating through a building is often important. Dorplan supply a wide range of custom made fire rated and acoustic screens. The finishes of screen frames are in either Redwood, Hardwood or MDF.

There is a wide range of glass types and finishes available to compliment or support the requirements of any project. Glass is supplied loose with appropriate seals and beading.

Screens can be supplied with integral blinds for privacy.

Visibility through a door is a fundamental requirement in safety and functionality in certain locations. As doors are the principle barriers in this, the use of vision panels and side screens or borrowed overlights are widely used.

Dorplan manufactures vision panels to any size within the scope of fire and acoustic test evidence. Vision panels with fire integrity up to 120 minutes or acoustic rated up to 52dB can be supplied using a variety of glass options which are fully tested and certified to the relevant standards.

Glass types

Non Fire rated - safety laminated or toughened

Fire rated - FD30 up to FD120

Acoustic rated - 29dB up to 52dB

Finishes - clear, wired, sandblasted

Privacy Glass - integral blinds and adjustable privacy vision panels, switchable glass.

Vision panel designs:

Part M Building Regulations for Effective clear width and visibility requirements.


All timber beading is supplied in hardwood with species to compliment the door finish.

Bolection style beading - hardwood profile lips over door face

Flush beading – hardwood profile sits flush with quirk between door face and beading

Stainless Steel trims. Used extensively for enhanced durability and security and finishing effects.

Timber species

Dorplan’s ability to support clients in the coordination of finishes throughout the project is a much sought after service. Especially when tying in hardwood floors and furniture with the finishes on doorsets can be very challenging. With the perse range timber species and colouring effects available together with the colour blending staining service we offer, nearly all coordinating finishes can be achieved.

Typical timber species available:

European Oak, American White Oak, American Black Walnut, Wenge, Steamed Beech, Maple, Cherry, Ash, Sapele, Sycamore, Zebrano, Teak, Birch, Mahogony, Elm, Cedar, Chestnut

Veneer types: Crown Cut, Quarter Cut, Bookmatched, Birds Eye, Figured, Weathered

Special finishes: Stained lacquer, Smoked, Fumed, Polyester & Polyurethane

Hardwoods are factory sprayed with clear satin lacquer but special sheen levels can be supplied where required from 5% dead matt to 90% high build gloss polyester lacquered.


‘Primed’ doors and frames are a legendary preference in the UK. Site decoration for doors, frames and architraves is often viewed as the most practical and cost effective solution. Dorplan offer their doorsets in primed or Factory spray paint to any colour to your selected sheen level.

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