Bi-folding
Doors

Modern space without barriers

Timber bi-fold doors are an excellent solution for creating wide, open spaces filled with natural light. Each set is handcrafted from FSC®-certified engineered timber and can be customised to suit both traditional and contemporary homes.

Whether used as a garden entrance, patio opening or glazed extension, Q4Sash Windows folding doors transform any living space with their smooth folding mechanism and minimalist frame design.

Key features:

Smooth folding system with top or bottom track options

Multi-point locking systems for superior security

Engineered timber: pine, oak or meranti

Low threshold options for easy barrier-free access

Factory-applied coatings or stains in any colour

Available in inward or outward opening configurations

Double or triple glazed units for enhanced insulation

Can be combined with fixed glazing or side panels

Bi-folding Doors

Glazing unit:

24-34 mm

Threshold:

HARDWOOD

Pane:

UG = 1.0 – 0.8

Spacer:

WARM

Material:

PINE JOINTED / OTHER

Fitting:

ROTO / TITON

Handle:

WHITE / OTHER

Colour:

VARNISH COLORS / RAL / F&B

Gasket:

QLON

Silicone:

ILLBRUCK / WACKER

Frame width:

94 mm

Heat Transfer Coefficient:

1,2-1,1 W/(m²·K)

Discover example realizations

Already know
what you need?

Contact our consultant to tailor the product to your needs.

Q4Sash windows and doors offer quality you can rely on – from design to implementation.