Aluclad Bi-fold Gretch-Unitas doors

Aluclad Bi-fold Gretch-Unitas doors


Bi-fold doors offer the ultimate in living space flexibility. Effectively creating a glass wall that you can slide out of the way to open your living area completely, folding doors offer unrivalled flexibility in how you blend the space between the inside and outside of your home. Folding sliding doors ensure the entire opening is completely clear, with no fixed sections.


Aluclad bi-fold doors are available only interior folding.


The passage door leaf attached to the frame is easy to operate independently of the folding sashes as a Turn-Only or Tilt&Turn sash. Opening width of up to 6.3m.

  • Sash profile width 78 mm or 94 mm (timber – FSC® Chain of Custody certified pine, oak, meranti, mahogany, larch, other species);
  • Double or triple glazed and /or filled with panels, internally beaded for enhanced security;
  • Sound insulation from 32 dB (depends on the glass unit or insulated panel);
  • Sash width 400-900mm, max 7 sashes. Max sash weight 80 kg.
Opening options
Opening types
Species of wood

Only engineered timber is used to manufacture Megrame windows and doors. This provides superior strength, stability and a knot-free finish – qualities for which our products are renowned.

Standard species of wood:

  • pine (finger-joint or clear faced)
  • oak
  • larch
  • meranti

Other species of traditional (eucalyptus, mahogany) or exotic (hemlock, oregon, white saraya) timber available upon request.

The timber used to manufacture our products is carefully selected and treated, and with correct installation and proper maintenance MEGRAME windows will last and give satisfaction for several decades


MEGRAME offers fully factory finished high quality timber windows and doors that have the convenience and durability provided by modern finishing technology with the excellence produced by highly skilled craftsmen.

Mediena copy

The quality finish of MEGRAME timber windows is obtained using highest quality ecological spray applied, water based, micro-porous finishing system. The finishing coat is elastic and moves together with the wood as well as lets the wood breathe.

A wide variety of RAL and stain colours are available to meet our customers’ requirements. All of our paints and lacquers are environmentally friendly, ecologically clean and harmless to the environment.

Available combinations of window colour:

  • lacquer both sides;
  • lacquer one side and RAL colour other side;
  • RAL colour both sides;
  • different RAL colour on each side.

Today’s glazing solutions offer incredible potential to create environments that are comfortable, cost-effective and sustainable.

At MEGRAME we offer a range of double and triple glazing with different performance characteristics – energy saving, solar control, noise reduction, safety, fire resistance.

Available glass unit spacers: aluminium, thermospacers Swisspacer and TGI (colours white or grey as standard).

To ensure privacy our customers can choose from Standard frosted glass or following obscure glass patterns:



Type No.1


Type No.2


Type No.3


Type No.4


Type No.5


Type No.6


Type No.7


Type No.8


Type No.9


Type No.10


Colours of internal handles: white, brown, mat chrome, bronze. Options with and without lock available.

EURO window_terrace_folding door handles


Glazing bars


Window glazing bead profile will match the glazing bar. Glazing bars available with or without internal spacer. Glazing bars are also available for aluminium clad timber windows.

Glazing bars inside glass units – aluminium bars mounted between the glass.

Glazing bars inside glass units – aliuminium bars mounted between the glass:


Width – 7,5 mm, height – 5,6 mm,NR.4E

colours – gold, silver.







Width – 18 or 25 mm, height – 8 mm,NR.4C

colours – white, brown, white/brown.

Other accessories

Gaskets – colours available: white, brown, sand.

All MEGRAME timber windows and doors are made-to-measure and can be fitted with a complete range of opening and closing solutions. Different units can be combined to create more complex constructions such as curtain walling, screens, patios, bays and bows, all created to your exact specifications.

Our correctly designed and manufactured windows are delivered fully finished and glazed prior to careful installation – giving our clients a high quality product which will benefit their homes for years.


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