300mm White Kayboard Laminated Window Board External Mitre Strip Image

300mm White Kayboard Laminated Window Board External Mitre Strip

SKU: KBEMSW

Brand: Kayboard

Dual-Purpose Design: Functions as either an external mitre or a straight joint, depending on orientation.
Perfect Fit for 22mm Boards: Designed specifically to join 22mm white laminated window boards seamlessly.
Professional Finish: Ensures a clean, high-end look when connecting window boards around corners or in-line.
Protects Against Moisture: Helps maintain structural integrity by sealing joints and preventing water ingress.
Durable & Low Maintenance: Made from high-quality materials to match laminated boards for a long-lasting, elegant result.

Description

300mm White Kayboard Laminated Window Board External Mitre Strip

Versatile Mitre or Straight Joint for 22mm Laminated Window Boards – White Finish

Achieve a seamless and professional finish with the 300mm White External Mitre Strip, designed to work perfectly with 22mm laminated window boards. This universal jointing trim can be used to create either an external mitre corner or a straight joint, depending on installation orientation—ideal for both aesthetic appeal and structural performance.

✅ Key Features:

Length: 300mm
Compatibility: Suits 22mm thick laminated window boards
Colour: Bright, clean White to match standard white woodgrain boards
Dual-Purpose Design: Use as an external mitre joint or straight connector
Material: Durable, easy-to-clean laminate for long-lasting use

🔧 Product Benefits:

Professional Finish: Joins two window boards neatly—perfect for corners or extended runs.
Protects Against Water Damage: Maintains the integrity of the joint area by sealing and strengthening transitions, helping to prevent moisture ingress.
Quick & Easy to Install: No specialist tools needed—suitable for both DIY users and trade professionals.
Aesthetic Cohesion: Complements our full range of White Laminated Window Boards, End Caps, and Universal Trims for a consistent look.

🏠 Ideal For:

Finishing internal window returns and sills
Creating long runs of window board with invisible joins
Adding a clean corner finish on external mitre edges

Pair this External Mitre/Joint Strip with our laminated boards to complete your window projects with style and substance. Durable, low-maintenance, and refined—the perfect finishing touch to any professional window installation.

Technical Information

Delivery: 1-2 Working Days
Lead Time: In Stock
Guarantee: 10 Years Guarantee
Brand Name: Kayboard
Weight: 0.0027 Kg

Delivery & Returns

Delivery

The despatch timings we publish are estimates and due consideration needs to be made when making purchases with tight deadlines and as such we shall not be liable for any losses, costs, damages, charges, or expenses caused by any delay for delivery of the goods.

Returns Policy For Brissco Online

We appreciate that there may be occasions you may wish to return items. To help you with this process please see our returns policy below.

Returning an item – Damaged

In the event you receive damaged goods we will arrange a replacement item for you. However, it is your responsibility to notify us within 72 hours of receipt that an item has been received damaged (please see risk below).

Returning an item – Risk

On receipt of the delivery you, the customer, are responsible for those goods and any loss or damage to the goods shall be at your own risk.

Returning an item – Incorrect

If you receive incorrect goods it is your responsibility to notify us within 72 hours of receipt at which point we will make the necessary arrangements.

Delivery shortages

Firstly, our carrier delivers parcels/packages. Any shortages of them must be reported to the driver on receipt. Secondly, shortages of contents of the parcel(s)/package(s) against the enclosed Brissco advice note must be made within 72 hours.

PDFs

Summit Product Guide

FAQs

1. What is the 300mm White Kayboard External Mitre Strip used for?

This strip is used to create a clean external mitre or straight joint between two 22mm laminated window boards, ensuring a seamless connection and professional finish.

2. Can it be used for both external mitres and straight joints?

Yes, depending on which end of the joint you use, the product functions as either an external mitre or a straight connector.

3. What size window board is this trim compatible with?

It is specifically designed for use with 22mm laminated window boards.

4. What colour is the mitre strip?

The strip is finished in white to match standard white laminated window boards for a consistent look.

5. What material is the mitre strip made from?

It is made from durable laminated material, designed to complement the laminated window board range.

6. Is it suitable for use in all types of window installations?

Yes, it can be used in new installations or refurbishments to enhance the appearance and structural integrity of the window reveal.

7. How does this strip contribute to water protection?

By joining boards securely, it helps maintain a continuous surface that resists water ingress and protects the underlying structure.

8. Is this product easy to install?

Yes, the mitre strip is designed for a simple push-fit or adhesive fix installation, making it quick and easy to use.

9. Will it work with other colours or finishes?

This particular model is white, so for a perfect match, it is best used with white laminated window boards. Other colours may be available in the same range.

10. What kind of finish can I expect with this accessory?

The mitre strip ensures a smooth, professional finish that complements the luxury and practicality of the full laminated window board system.