75 mm double rail frame and 92,5 mm single rail frame, 50mm sliding system sash profile.

No need for reinforcement cutting screwing unit and workman.

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

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

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

The medium locked sash with a seal system.

Application of single glaze (4-6 mm) and insulating glass 20-24 mm by grey sealed glazing beads in different tickness.

In addittion to main white profile, it has a different laminated color range.

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