
caster wheels for sliding doors. They come in a variety of sizes and styles to suit different types of doors and tracks. Whether you have a traditional wooden sliding door or a modern glass door, there are caster wheels available to fit your specific needs.

wrought iron railheads.
The window profile, or window frame, can be made mainly from three different materials: plastic, i.e. PVC, wood and aluminium. Plastic profiles are the most common and the most economical. Laminated timber frames are valued for their naturalness and rigidity, which is particularly important for larger patio windows. However, they are more expensive, heavier and require regular maintenance. Aluminium profiles, on the other hand, although they have the highest cost, are the most rigid, durable and maintenance-free. This is why their share of the market is steadily increasing, although due primarily to their high price, they still do not exceed a few percent.
One consideration is that exterior-grade windows come with thermal insulation and double-glazed units; these elements are not usually needed inside the home. Where you don’t need specific sound or insulation requirements of double-glazed panes, single-glazed glass creates a better overall look. Internal single-glazed windows are also slimmer in most cases.