- About CDI
Our innovative products cover a wide variety of applications and potential uses.
They offer numerous benefits and solutions for the design team right through to the end user of the building and they have been on projects all over the world. Look below for an overview of the products within our range.
We stock and supply a number of floor systems that provide the same or an improved performance as a traditional underfloor heating concrete ground floor, but for suspended floors. Suspended floors are typically constructed using timber or steel beams or joists and are above a void or a room below. These systems include a steel …Read More
Acoustic or “soundproof” floors are the floors between two rooms of a house, upstairs and down, between flats, one over the other or between spaces of different use, for example an apartment over a restaurant. Acoustic separating floors can simply be used to improve the comfort of the occupants, for example to reduce the noise …Read More
Fire separation within floors is a key component of achieving the performance required to allow the evacuation of a building during a fire, this is expressed as a time in minutes and is typically 30, 60, 90 or 120 minutes. Different building types require different levels of performance. Typically in houses this doesn’t kick in …Read More
The load bearing capacity of a floor or roof is key to its successful application within the building and ensures that it is up to the task it is being asked to do. This ranges from relatively the simple and small domestic loads associated with houses and apartments through to commercial application from offices through …Read More
We have a number of innovative Ground Floor solutions that can be used in either new-build or renovations. These include the FastSlab ground floor for replacing rotten suspended timber floors with an insulated, light weight screeded ground floor often incorporating underfloor heating, we also have the insulated Op-Deck system for high loads, large spans and …Read More
Including a roof that can be used as a place to park a car or use as a terrace can prove to be a challenge, we have a number of systems that are either designed for this or can be used for this application. Key to the success of a roof such as this is …Read More
Creating a wet-room in either a new-build or renovation situation on the 1st floor is often complicated by the presence of timber floors that move and flex and therefore end up with expensive leaks. Our systems are primarily floor strengthening and reinforcing systems that also allow the incorporation of wet room drains directly into the …Read More
A balcony is an exciting and often focal point to any house, apartment or other building, giving that feature a solid concrete feel to the surface conveys the quality of this key element of the building to all that use it. Depending upon the span to be achieved we have a number of systems that …Read More
Ask CDI a Question
What are the Lewis Deck sheet sizes?A
Q: What sheet sizes are held in stock for delivery within a few days after order? A: We stock 2500mm and 1300mm sheets. These are all 630mm wide and 16mm deep. Deliveries are made via the pallet network directly to site. The smaller sheets are aimed at small bathroom renovation projects and can be supplied in small numbers via TNT. 2.5* and 1.3m sheets allow for the 100mm overlap to occur over a joist, with joist centres being either 300mm, 400mm, 600mm, 800mm*, 1200mm and 2400mm*. (*2.5m sheet only) For larger projects we are able to produce bespoke sheet sizes if required, please get in contact to discuss other options for sheet sizes.
Why don't my Lewis sheets interlock like they do in the video?A
Q: Why don't my sheets interlock like they do in the video? A: The sheets have two sides (one printed, one plain), the dovetails on either side are different widths, it is then necessary to alternate the sheets print up and then print down.Q
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Cow Close Barn with Heat Pump and Underfloor Heating
01st January 1970
Paul M contacted us in early 2022 to discuss the use of the Lewis Deck system following a recommendation by his Ground Source Heat Pump system installer. We worked through the drawings and provided a quote, the Lewis Deck and…View All
2022 Has Begun and Exhibitions Are, Fingers Crossed, Back To Normal.
21st January 2022
Starting on Friday 28th January, now that COVID has magically disappeared, we are heading back on the road and will be exhibiting for a full year for the first time since 2019. Next Friday sees the first exhibition at the…View All
Lewis Deck Brochure Content
01st January 1970
As part of a joisted floor construction, LEWIS® Dovetailed metaldecking provides a first class solution for ACOUSTICS, FIRE PROTECTION and workswell with UNDERFLOOR HEATING AND COOLING systems.LEWIS® Dovetailed metal decking solutions are used in a range of applications includingrenovations and…View All
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