Box Sash: Period

Our sash windows are manufactured from premium, sustainably sourced timber, including pine, sapele, European oak, Accoya, and engineered hardwoods such as Red Grandis.

Additional timber species can be sourced for bespoke applications, subject to availability and suitability.

Refer to our Design Guide for further information on timber specification options.

Where required, trickle vents are fully concealed through the head of the frame.

They are invisible on both the internal and external faces of the product.

Working closely with leading component manufacturers, we carefully select high-quality hardware that delivers both excellent performance and refined detailing.

Take a look at our Design Guide for our full standard catalogue.

If you have a particular product in mind that is not covered in our ranges, please let us know and we can check compatibility.

A PAS24-tested window is available, compliant with Part Q of the Building Regulations.

Enquire for further details on ironmongery and certification.

Glazing bars are available in a range of profiles, with varying depths and detailing to suit traditional designs. The Box Sash Conservation range is defined by true glazing bars, glazed with a traditional external putty finish:

• 18mm Lambs Tongue
• 25mm Ovolo

Duplex bars are available in black, white, grey and brown finish.

Bespoke profiles can be machined to suit specific project requirements, including the replication of existing or historic details.