70 mm frame and 60 mm sash profile system. Because of the composite profile extruded together, no need for extra metal reinforcement inside.

No need for reinforcement cutting screwing unit and workman.

Compared with metal reinforcement system profile Penwood systems have %30 more advantages with max heat-sound and water insulation.

Just cut and weld. You do not need Metal Reinforcement and extra stock area for Metal Reinforcement.

Possibility to install single 4-6 mm or double glazing 20, 24, 28, 32 mm with different thickness of glazing bead.

It has water drainage channel, it can be directly drilled after cutting.

Color range for laminated products.

It’s quality is accredited by national and international certificates.