Wooden Traditional Box Sash Windows with Weights or Springs
Specifications of Box Sash Windows and Spring Sash Windows
- Our sash windows can be made from softwood or hardwood. A long-term smooth operation of our sash windows is a standard, as we use a multi-layer timber which minimizes swelling and warping of the wooden frames;
- The sash windows are double-glazed and have a low-E glass;
- The glazing units are filled with argon gas for heat and sound insulation (average U value of the window is 1.5 W (m2K));
- The windows have draught sealing;
- Security of the sash windows is ensured with a catch and security lock stop; the glazing unit is internally beaded;
- Our timber sash windows are fully factory-finished, micro-porous painted in any 200 RAL palette color or varnished;
- Wooden glazing bars can be added to a window design;
- The internal wooden window board and external sills can be fitted;
- Various options of ironmongery are possible;
- Two types of operation of our sliding sash windows are available: weights and spring.






