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Berkshire Thermawood Grey Part L Compliant External Doors

By PM Mendes

: £504.00

  • 10 Year Guarantee against Manufacturing Defects
  • Price Match Promise
Primed

Primed

High grade materials

High Grade Materials

10 Year Guarantee

10 Year Guarantee

Product Information

Bring refined simplicity to your entranceway with the PM Mendes Berkshire Thermawood External Door.

Its solid tongue-and-groove panel design creates a modern ladder-style look that compliments contemporary aesthetics. Built with PM Mendes’ innovative Thermawood construction, this door delivers outstanding thermal efficiency, achieving U-values as low as 1.32–1.36 W/(m²·K).

Marine-grade timber facings provide exceptional durability against the elements, whilst the aluminium composite interior allows for enhanced thermal performance and security. Fully Part L compliant and trimmable by up to 25mm on all edges, the Berkshire Thermawood is grey-primed and ready to be painted for your chosen colour on-site. Supplied with a 10-year guarantee against manufacturing defects.

Technical Specification
Category
Brand
Material
Timber Composite
finish
Doors which have been lightly sanded and had a primer coat applied, but still need further coat(s) to seal the door or to achieve the final colour you desire.
Primed
Panels
12
Colour
Grey
Construction
Composite
Lipping
The lipping is the timber material around all edges of the door from which your joiner can trim the door down in height and width, as well as fit hinges/ locks too.

Trim allowances vary by lipping size, door design and fire rating - please contact us for more information about your desired door’s trim allowance.
30mm
Average Weight
33.0kg
U-Value
This is the measurement of thermal performance of a product, and covers all elements of that product, inc glass and materials. The lower the U value the better the performance of the product.
1.32–1.36 W/(m²·K)
Need any help or assistance?

Should you have any questions about any of our products or aftercare, please don't hesitate to contact us on the following details:

01246 380283

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Standard UK Door Sizes:

  • 1981 x 381/419 x 35mm (sidelights/side panels)
  • 1981 x 457/533 x 35mm (cupboard/wardrobe)
  • 1981 x 610/686/711 x 35mm (restricted spaces)
  • 1981 x 762 x 35mm (most common internal door size)
  • 2032 x 813 x 35mm (usually former external door size)
  • 1981 x 838 x 35mm (mobility/wheelchair access)

Metric Door Sizes (Popular in Europe/Scotland):

  • Height: 2040mm
  • Width: 426/526/626/726/826/926mm
  • Thickness: 40mm

Measurement Tips:

  • Measure door opening for height, width & thickness.
  • Allow 2-3mm gap around the door for proper operation.
  • Contact us for bespoke sizes.

Trimming Guidelines:

  • Engineered timber doors can be trimmed to fit; consult our guidelines or contact us for advice.

View Our Full Size Guide

If you are unsure about your sizing, please contact us for assistance. We also offer bespoke / made to measure doors.

Get in touch if you need help with anything or if you have any questions about our products.

Contact Us