We use the below specified wood products for manufacture of windows, balcony or entrance doors:

• Pine - triple-layer tenoned (finger joint) laminated (glued) wood (branches, resin and fractures removed)
• Pine - triple-layer not tenoned (solid) laminated wood (selected without branches, resin or fractures)
• Larch - triple-layer tenoned laminated wood (branches, resin and small splits are removed)
• Larch - triple-layer not tenoned laminated wood (selected without branches, resin or splits)
• Oak, mahogany, meranti - triple-layer not tenoned laminated wood (selected without branches, resin or splits)