OKNA vinyl patio doors are one of the best performing, easiest to operate patio doors on the market. The doors have been designed and built to withstand extreme weather conditions - not to mention looking attractive and saving energy while doing it.

OKNA hopper windows are an excellent choice where ventilation is an important factor, since virtually the entire window can be opened.

Commonly used in basement applications for the home, hopper vinyl windows are bottom-hinged windows that open inward for ventilation. The window tilts in from the top with a gentle tug on the handle.

OKNA casement windows enhance your window viewing area and add more natural light to your house. It's the perfect choice above cabinets, counters, or areas where opening and closing require a reach. Just crank them outward to provide full ventilation to draw that garden fresh air into your house.

OKNA double-hung windows are the traditional, classic style; both sashes can be raised and lowered for optimum ventilation, and both tilt in for easy cleaning. The vinyl frames and sashes will never chip, peel, crack or warp.

OKNA picture windows look good by themselves, grouped with other fixed frame windows, or even in combination with other window styles such as casement windows to add ventilation.

OKNA single hung windows are typically the same as double hung windows however with a single hung window design only the bottom sash slides upward. Reminiscent of old style sash windows, they can be arranged in a series or alone.

OKNA slider windows come in a variety of styles. Choose either two or three lites with slimmer profiles for a better view and more light coming into your home.