25mm Polycarbonate Sheets

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25mm polycarbonate sheets are perfect for use in conservatories due to their strength and excellent insulation properties. 25mm polycarbonate is a very high quality glazing material. Including high impact resistance and built in UV protection to protect the sheet from sun damage. Buyer's Guide Polycarbonate SheetsSuitable for high end canopies or those jobs requiring bigger spans than 16mm can offer. 25mm polycarbonate sheets from the Glazing Shop come with a 10 year Warranty.

Colours: Clear, Opal and Bronze tints,  25mm polycarbonate is also available in Heatguard and Bronze Opal for better insulation against heat and cold.

TOTALLY FREE CUT TO SIZE SERVICE - no need to cut on site.

August Savings! -  get a 10% discount off all glazing bars through the whole of August when you buy your polycarbonate from us. Just use the discount code BAR10 at the checkout.

Please choose the colour then input the length and width you need below.

Clear Polycarbonate Sheet held up to the sky to illustrate optical clarity

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  • Polycarbonate Sheet - opal colour showing level of translucency
  • Bronze  Polycarbonate Sheet shown held up to the sky
  • Clear Polycarbonate Sheet held up to the sky to illustrate optical clarity
  • Cross section line drawing of a 25mm Polycarbonate Sheet

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25mm Multiwall Polycarbonate Sheets

This amazing glazing material is manufactured from damage-resistant polycarbonate. 25mm Polycarbonate has excellent insulation values and very high impact resistance. This sheet thickness provides fine optical clarity and has high performance in respect of fire. We recommend the sheets are a maximum of 1050mm width between supports.The UV absorption layer is built into the sheet when it is extruded meaning it has a longer life. Also this layer prevents yellowing of the sheet and loss of strength over time. 25mm Polycarbonate offers excellent protection against vandalism and accidental damage Thereby an impact resistance up to 200 times greater than glass. The Glazing shop 25mm polycarbonate sheets are of the highest quality. In line with this we offer a 10 year warranty for your peace of mind.

Main Benefits

  • Saves energy
  • Lets in plenty of natural light
  • Lighter weight than glass and much more easy to fit
  • Very high level of thermal insulation
  • Impact & Damage resistance
  • Weatherable Longlife UV protection
  • Excellent fire performance


  • Conservatories
  • High End Canopies
  • Industrial Rooflights
  • Covered Walkways
  • Swimming Pool Coverings


  • Tints: Clear, Opal, Bronze, Heatguard


Heat guard is a special treatment that is built into the top side of the polycarbonate sheet. This serves to reflect the suns rays helping to reduce heat build up within the roof by up to 50%. The internal face of the polycarbonate sheet is opal tinted. This gives excellent reflective internal light.

Thickness Chart

25mm Polycarbonate Sheet Thickness

Clear Opal Bronze Heatguard Bronze Opal
U-Value 1.4 1.7*Sunlight 1.4 1.4 1.4
Light Transmission 62% 20% 15% 7% 8%
Weight (kg per sqm) 3.1 3.1 3.1 3.1 3.1
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