Coto62’ALU – wood-alu composite window


Contemporary Coto62 system offers highly insulating composite windows with maintenance-free aluminium exterior, resulting in unparalleled performance, durability and a combination of aesthetics, elegance with modern day technology and best U values. Our Coto62 window for low energy projects reaches U value of 0,77 W/m²K. Available double or triple glazed.


Megrame Coto62 casement windows are available as single units, multiple mulled units, or as French casements. A range of finish, ironmongery and cill options are available together with your choice of opening styles to include top hung, top swing, side hung, fixed frame units.

LST EN 1026:2000

4 (600Pa)

LST EN 12211:2000

C5 (1200Pa)

LST EN 1027:2000


EN ISO 10077-2:2003

0.77 W/m²K

The values are tested for a 1230 x 1480 single opening window with 4Low-E/18t/4/18t/4 Low-E argon filled glass unit. Ug=0.51, thickness 48mm.

Opening options

Top hung

 Top swing

 Side hung

   Projecting Side hung

 Fixed frame

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) FSC® Chain of Custody certified
  • oak
  • larch
  • meranti

Other timber species also available FSC certified. All flush casement windows are manufactured with hardwood Sapele cill.

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


Locking System:

Top hung, Top swing, Side hung and Projecting Side hung Coto62 windows are equipped with Mila GARANT Espag locking mechanism.

Friction Hinges:

Top hung, Top swing and Projecting Side hung Coto62 windows are equipped with Mila GARANT M7 anodised aluminium friction hinges. Butt hinges – option for side hung window.


MILA ProLinea Espag Handles

Type: Locking, Non-Locking

Glazing bars

Glued on glass timber glazing bars available in25 mm width, height – 14 mm. Types – Standard, Rustic.




Glazing bars available with or without internal spacer. Window glazing bead profile and internal frame moulds will match the internal glazing bar. External glazing bars is 26mm aluminium bar as standard:



Other accessories

 Gaskests – colours available:

  • white,
  • brown,
  • sand

Trickle ventilation:

Can be installed in the upper part of frame 

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.


  • Coto62 window is designed for low energy projects with U value of 0,77 W/m²K....

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  • Megrame Flush Casement double glazed windows with perfectly flush joints with no unsightly grooves....