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Welcome to Building Plastics Online your No.1 Choice for High Quality Building Plastics in the UK

customer services

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(Customer Service)
0333 121 4800
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0333 121 4801

Building Plastics Online
 
FREE DELIVERY OVER £30
On Roofline, Roomline & External Cladding
 
PREMIUM QUALITY PRODUCTS
We stock ONLY high quality plastics
 
UNBEATABLE SUPPORT
Our customer support is second to none
 
OVER 200 UK BRANCHES
200+ Branches nationwide, deliver or collection

Welcome to Building Plastics Online your No.1 Choice for High Quality Building Plastics in the UK

 
PREMIUM QUALITY PRODUCTS
We stock ONLY high quality plastics
 
UNBEATABLE SUPPORT
Our customer support is second to none
 
OVER 200 UK BRANCHES
200+ Branches nationwide, deliver or collection

Mobile

 
PREMIUM QUALITY PRODUCTS
We stock ONLY high quality plastics
 
OVER 200 UK BRANCHES
200+ Branches nationwide, deliver or collection
 
UNBEATABLE SUPPORT
Our customer support is second to none
 
internal window sill cover
internal window sill square edge

RELATED ITEMS

White Square UPVC Internal Window Sill & Board

SKU: CB30064  |  BRAND: Eurocell

£28.16

inc. VAT

Qty
300mm - 12" Window Sill - Square Cover Board

White UPVC Square Window Board & Sill

Our White UPVC Square Window Board and sill combine stylish elegance with practical durability. Designed for long-lasting performance, it is resistant to scratches and stains, ensuring a pristine appearance for years to come. Unlike traditional wood, this UPVC option will not rot, shrink, or warp, and it features a sealed surface to protect against moisture, making it ideal for any environment.

Key Features

  • Smooth gloss finish for a modern, elegant look
  • Scratch and stain-resistant for lasting good looks
  • Will not rot, shrink, or warp over time
  • Low maintenance – no sanding, painting, or sealing required
  • Easy to install and trim to size
  • Cost-effective alternative to traditional wooden boards
  • Matching end caps available for a seamless finish

Technical Specifications

  • Length: 5000mm
  • Width: Available in 150mm, 175mm, 200mm, 225mm, 250mm, 300mm, 350mm, and 450mm
  • Note: 350mm x 450mm Double Lipped 
  • Thickness: 9mm
  • Fire Resistance: Class 1 fire resistance rating
  • UV Stability: UV stable and non-toxic
  • Recyclability: Fully recyclable
  • Guarantee: 10-year manufacturer’s guarantee

Applications

This versatile window board and sill is perfect for replacing old wooden boards or completing new projects. It is suitable for extensions, conservatories, summerhouses, and garden offices and fits seamlessly into both renovations and new builds. Whether installed by a DIY enthusiast or a professional, this low-maintenance product is a practical and attractive choice for any home or workspace.

White UPVC Square Window Board & Sill

Key Features

  • Modern gloss finish for stylish appeal
  • Scratch and stain resistant
  • Will not rot, shrink, or warp
  • Low maintenance and easy to install

Technical Specifications

  • Length: 5000mm
  • Widths: 150mm to 450mm options
  • Thickness: 9mm
  • Fire Resistance: Class 1
  • Guarantee: 10 years

Write a review

 

White UPVC Square Window Board & Sill

Key Features

  • Modern gloss finish for stylish appeal
  • Scratch and stain resistant
  • Will not rot, shrink, or warp
  • Low maintenance and easy to install

Technical Specifications

  • Length: 5000mm
  • Widths: 150mm to 450mm options
  • Thickness: 9mm
  • Fire Resistance: Class 1
  • Guarantee: 10 years

Write a review

RELATED ITEMS

 
 

“Very impressed this time around!!! (disappointed with communication and delivery in first lockdown) and left a negative review which I updated after delivery. I can now understand all the good reviews before the pandemic. Still the cheapest by far and the products are spot on. I've just placed another order - Thank you keep up the good work”

Jason Wright

 

“Very impressed this time around!!! (disappointed with communication and delivery in first lockdown) and left a negative review which I updated after delivery. I can now understand all the good reviews before the pandemic. Still the cheapest by far and the products are spot on. I've just placed another order - Thank you keep up the good work”

Jason Wright

 
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