Tubeway supply high strength Polycarbonate Twinwall and Multiwall sheets for use in conservatories, car ports and other large-span projects. These sheets are self extinguishing, have tremendous impact resistance, provide significant insulation because of the air trapped in the internal flutes, they transmit light but are UV protected, they last for decades and are easy to cut and shape with suitable tools.

The sheets are available in 3 standard shades:

  • Clear for maximum light transmission
  • Opal to match to white structures such as conservatories
  • Bronze to match hardwood structures

Multiwall and Twinwall can be supplied in sizes up to 7000mm x 2100mm, and can be cut into shapes, not just rectangles. In addition to the sheets, the common aluminium and PVC profiles to help joint, edge and trim them can also be supplied. None of these products can be ordered online, because of the individual nature of most orders. If you are interested please contact our Sales team on the number or email address above, and for more in depth details on all Twinwall and Multiwall products, including manufacturers technical Guides, you can visit our sister site,, by clicking the logo below:


Twinwall Polycarbonate

So called because of its two walls giving one row of flutes, this lightweight product can be supplied in 4mm, 6mm and 10mm thicknesses

Multiwall Polycarbonate

This sheet has 3 or more walls creating multiple layers for enhanced insulation and strength. It can be purchased in 16mm, 25mm and 35mm thicknesses.


There are a number of standard profiles which make jointing and trimming Multiwall and Twinwall straightforward, such as:

  • PVC Capped Rafter Supported Bar, two part bars that seal against water and allow for thermal expansion
  • End Closures, to cover the exposed flute ends
  • End Closure and Side Flashing, which can fit the sides and ends of sheets
  • Fixing Buttons, with water seal
  • Anti Dust Breather Tape, to exclude dust, insects and moisture, preventing mould
  • Wall Flashing Tape

For all of these profiles contact us or visit the site as above.

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