Polycarbonate Sheets

Polycarbonate SheetsMultiwall polycarbonate sheets for fast delivery throughout the UK. Full range of thicknesses and colours.

We have a totally free cut to size service. This means we save you the trouble of cuting down your polycarbonate sheets down. Our prices are never inflated for this! As a result you can order your polycarbonate sheets in the exact sizes you need to fit your roof without paying extra. We supply everything from simple rectangles to complex shapes for conservatory roofing. We supply you with the highest quality polycarbonate sheet at the very best prices.

The construction of the flutes that make up multiwall polycarbonate sheets give incredible strength. Despite this even the thicker polycarbonate sheets remain relatively light weight compared to glass and other solid glazing materials. The polycarbonate roofing sheets have excellent UV protection. Also they all come with a ten year guarantee for your peace of mind.

Buyer's Guide Polycarbonate Sheets Our polycarbonate sheets come in thicknesses of 4mm, 6mm, 10mm, 16mm, 25mm, 32mm and 35mm. Polycarbonate roofing sheets are available in a wide variety of colours. These include Clear, Opal, Bronze, Bronze Opal and Heatguard Opal dependent upon the thickness. Please select the thickness you require to view the colour options for that product. Please note that the length is down the flutes of the sheet and the width is across the flutes.

June Special offer!  10% discount off all glazing bars during June when you purchase your polycarbonate roofing sheets from us. Simply use the discount code BAR10 at the checkout.

To view our polycarbonate sheet prices and to buy online, please choose the thickness from the following:


Guide to choosing your Multiwall Polycarbonate Sheets

Here at the Glazing Shop we want to help you make the right choices. If you have a question that isn't answered in the following guide, please contact us for more information on 01536 446395.

This guide looks at structured polycarbonate sheets as opposed to solid ones. Structured sheets are made from layered polycarbonate walls, and cavities (knows as flutes) which give additional strength whilst keeping the weight of the sheets more manageable.

Polycarbonate sheets are used for a wide variety of applications. There is a large range of thicknesses and a variety of colours which offer different benefits depending on your project/application. With this in mind there are a number of things to take into consideration when looking for the right polycarbonate sheeting.

1. Sheet Thickness

Basically the thicker the sheet the stronger and more rigid it is. It can therefore achieve greater spans between supports and its impact resistance is increased.

The different thicknesses have various physical structures i.e. the number of polycarbonate walls and their design or structure changes.

The structure of our polycarbonate sheets are as follows:


As the polycarbonate sheets get thicker you also have the added benefits of lower U-values. The U-value is the amount of heat transferred or conducted through a material. The lower the U-value the better the insulation performance will be.

The light transmission is also reduced as the sheet thickness increases. If you take clear polycarbonate as an example this reduces from 82% on 4mm polycarbonate to 50% transmission with 35mm.

For more technical information please see the specification sheets in our brochures section.

2. Application

Certain sheet thicknesses suit certain applications e.g you wouldn’t overspend on 25mm sheets to glaze a greenhouse when 4mm or 6mm would suffice; equally you couldn’t use 4mm on a conservatory roof as you would not get the spans, insulation benefits etc.

Popular applications for each thickness are as follows:

4mm & 6mm Generally used for Greenhouse glazing but also sometimes used for point of sale boards
10mm Mostly used for carports and canopies with smaller spans and centres between the bars. A very cost effective and lightweight sheet.
16mm This is the most popular polycarbonate sheet thickness for carports and canopies. It is sometimes used in smaller conservatories that are generally not heated i.e. utility areas when 25mm is too expensive.
25mm A very strong, high quality glazing material. With excellent insulation properties, it is used primarily in conservatories, orangeries & atriums. It is also a popular choice for high end canopies or commercial projects. You also have the additional colour choice of Heatguard at this thickness.
32mm For use in conservatory roofs, this is a very strong and thermally efficient sheet. Performance-wise it falls between 25mm & 35mm. Not so commonly used nowadays, with most people preferring the higher specification 35mm sheet which is often more cost effective. Heatguard and Bronze Opal colour choices are available at this sheet thickness.
35mm Specifically created for use in conservatory roofs this is the strongest and most thermally efficient sheet in our range. With the added benefits of a wider range of colours (including Heatguard and Bronze Opal), you can tailor the amount of light and heat in your room dependent upon its position and level of sun.

3. Colour

When choosing the colour of your polycarbonate your first thought will probably be aesthetics, how do I want it to look? There are however, other things you may want to take into consideration such as the level of light you want to allow or the level of heat you want to retain or block. The different polycarbonate sheeting colours offer varying degrees of light transmission and insulation allowing you, in conjunction with the sheet thickness, to really tailor the effect you are trying to achieve.

For more technical information please see the specification sheets in our brochures section.

Clear multi-wall polycarbonate Clear multi-wall polycarbonate, as you would expect, lets the maximum amount of light shine through. It also allows the maximum of heat to build up and is an excellent choice for darker, colder spots. Perfect for greenhouse glazing in thinner sheets.
Opal-tinted multi-wall polycarbonate Opal-tinted multi-wall polycarbonate is a great all-rounder. Similar in appearance to the opacity of an opal light bulb, it allows diffused softer light through. It helps to reduce heat build-up in one area, reducing the creation of hot spots. Its tinted appearance provides just the right amount of privacy while still maintaining a light and bright space. Often used on car ports to camouflage the leaves and debris that may fall on the roof.
Bronze-tinted multi-wall polycarbonate Bronze-tinted multi-wall polycarbonate is good for particularly bright spots where you may want less light to pass through. It helps to reduce heat build-up, keeping rooms cooler.
Heatguard polycarbonate Heatguard polycarbonate is a special double extrusion with a grey outer and an opal inner. Especially suited to very sunny south facing conservatories, the outer layer reflects and repels heat helping to keep the conservatory cooler than with standard glazing. The opal interior keeps it looking light and bright with the benefit of a ceiling like appearance at night as artificial light reflects off it.
Bronze Opal polycarbonate Bronze Opal polycarbonate is again a double extrusion with a bronze outer and an opal inner. Suited to sunny conservatories, the outer layer reflects light and repels heat to a slightly lesser degree than Heatguard (8% light transmission as opposed to 7%.) The opal interior again keeps it looking light & bright with the benefit of a ceiling like appearance at night as artificial light reflects off it. This polycarbonate sheeting is a more popular choice for brown conservatories.

For your peace of mind, all of our multiwall polycarbonate carries a Ten Year Limited Warranty against discolouration, loss of light transmission and/or loss of strength due to weathering. For full warranty information click on the relevant link below.

Marlon st Polycarbonate Sheet Warranty - for 25mm, 32mm & 35mm sheets (all colours) except 25mm opal

Palram Sunlite Polycarbonate Sheet Warranty - for 4mm, 6mm, 10mm, 16mm sheets (all colours) plus 25mm opal

Product Catalogue