Megrame Flush Casement 78mm triple glazed windows with perfectly flush joints with no unsightly grooves offer unparalleled performance, excellent quality, durability and a combination of traditional elegance with modern day technology and best U values. Our Casement78 window for low energy projects reaches U value of 0,9 W/m²K.


Megrame Casements are available as single units, multiple mulled units, or as French casements. A range of cill, frame thickness, finish and ironmongery options are available together with your choice of opening styles to include side hung, top hung, glazed in sash or direct glazed fixed units. All casements come with modern multi point locking high security espagnolette locks.


Our flush timber Casement Windows offer a choice of frame profile designs and 22mm or 18mm glazing bars to ensure that your aesthetic requirements are achieved (Ovolo, Lambs Tongue, Cove, Putty line, R3).


Due to their fuss-free simple design, they also look excellent in more contemporary properties as well, making this a truly versatile window choice that has great thermal performance.

LST EN 1026:2004

4 (600Pa)

LST EN 12211:2002

C3 (1200Pa)

LST EN 1027:2004

5A (200Pa)

EN ISO 10077-1:2006

0.9 W/m²K

The values are tested for a 1230 x 1480 single opening window with 4LowE/16t/4/14T/4 Low-E argon filled glass unit, thickness 42mm.

Opening options

Megrame flush casement wooden windows are made to order to customer specification, any layout of window that is required can be manufactured.

Fixed Sash

Side Hung

Top Hung

A French window /false mullion option can also be specified to provide a large opening with two sashes

Bay Windows

We are able to supply all wooden flush casement windows in the range as a bay window.

Square Bay

Angled Bay

Round Work / Arches

We can provide a wide range of curved work designs, including arch top, internal sash arches (to top and bottom rails) as well as simple arch linings.

Arch Top

Internal Arch

Arch Fillet

Round window

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


Locking System:

  • Our flush Casement Windows utilise twin cam espagnolette locks that have been successfully tested at the UKAS accredited Test Centre to the enhanced security performance requirements of BS 7950, has achieved 50,000 cycles – more than twice the standard requirement – to ensure operational reliability, 240 hours salt spray to ensure weather resistance and meets the enhanced security requirements of Secured by Design. Adjustable, steel mushroom cams for enhanced security

Friction Stays:

  • We utilise the benefits of few different friction stays in our timber flush casement window range. All our top hung windows and side-hung windows use a hinge that is manufactured in the UK and available as austenetic for enhanced corrosion resistance. Standard, Edgress (only side hung), 90˚ (only side hung), Restricted options available. For our heavier side hung sashes, we use a heavy duty hinge ensuring that the product will perform for many years to come. Butt hinges – optional.

Egress friction hinge – Allows casement windows to comply with Building Regulations Approved Document B for fire escape Windows, 16″ hinge opens to a full 90° for emergency exit to comply with BS 5588-1; Composite slider with stainless steel release lever mechanism allows cleaning access from the inside of the building to comply with BS 8213-1; Automatically resets to the fire escape mode when the window is closed; Available in ferritic and austenitic stainless steel.

Restricted friction hinge – Built-in quick release lever allows the window to be fully opened for easy cleaning, total ventilation; Tested to BS6375-2 to load bearing capacity of safety devices; Restrictor automatically relocates and resets when the window is closed.

Casement window handles


MILA ProLinea Espag Handles

Style: Inline & Cranked

Type: Locking, Non-Locking, Green Button Egress

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Polished Brass              Polished Chrome                         white                                Satin Silver                     Smokey Chrome



Forged Slimline Monkey Tail Espagnolette Security Handle


Forged Slimline Ball End Espagnolette Security Handle


Other non-standard types of handles, stays, etc. available

Glazing bars

Glued on glass timber glazing bars available in 22 mm or 18mm width, height – 19 mm. Types – Ovolo, Putty line, Cove, Lambs Tongue:

glazing-bar-typesGlazing bars available with or without internal spacer. Glazing bars are also available for aluminium clad timber windows. Window glazing bead profile and internal frame moulds will match the internal glazing bar. External glazing bars is Putty line as standard:

Ovolo 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 aliuminium clad timber windows.

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


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

colours – white, brown, white/brown.







Width – 7,5 mm, height – 5,6 mm,NR.4C

colours – gold, silver.

Other options

Standard Specification: 61mm Jambs & Head with 73mm flush cill (112mm overall depth), sash height 65mm (depth 78mm).


Cill Projections: Projecting cill – 40mm (134mm overall), 60mm (154mm overall) or 80mm (174mm overall). Other projections available (30mm to 100mm).

Gaskets – colours available: white, brown, sand.

Trickle ventilation – can be installed in the frame or sash, concealed vent with head drip available.

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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