Wood. Where
nature meets
superior
design.
When It Comes to Frames, Wood Is Good
NK’s wood windows and doors are available for all types of projects in a wide array of wood species.
While the expected life span of a wood window or door can match that of a clad wood window or door, regular maintenance and eventual refinishing are required.
As a result, wood-framed fenestration is predominantly used in historic renovations where an aluminum outer skin would not be architecturally acceptable.
Configurations Available in Wood:
Fixed
Tilt & Turn
Tilt
Folding Walls
LiftSlide Doors
Glass Doors
Facade Systems
Modern Doors
Panel Doors
We believe in being
Beautiful & Simple
Features
Arctic R-11
The highest performing window that money can buy, Arctic combines a timber-aluminum frame with quad glazing, swisspacer warm edge technology, and generous foam insulation to deliver unparalleled performance in a broad range of climates, including the extremely cold.
11 R-Value 4 Glazing Layers 3 Low-E Coatings 64 % of Visible Light Transmitted (Clarity) 5 Number of Seals 60+ Expected Service Life in Years
Thermo R-8
The Thermo line of high performance windows and doors is NK’s most popular seller. For many customers, this product line hits the sweet spot in terms of value, performance, and craftsmanship.
7 R-Value 3 Glazing Layers 2 Low-E Coatings 71 % of Visible Light Transmitted (Clarity) 4 Number of Seals 60+ Expected Service Life in Years
NC R-9
Boasting performance that is approximately four times better than typical domestic triple-glazed windows, NC (“No Compromise”) represents the pinnacle of fenestration innovation.
9 R-Value 3 Glazing Layers 2 Low-E Coatings 71 % of Visible Light Transmitted (Clarity) 5 Number of Seals 60+ Expected Service Life in Years
Classic Plus R-6
ClassicPlus is our most economical, triple glazed aluminum clad line. It features the same craftsmanship, rainscreen cladding, hardware options, and nearly identical glass packages as its more expensive siblings.
6 R-Value 3 Glazing Layers 2 Low-E Coatings 71 % of Visible Light Transmitted (Clarity) 4 Number of Seals 60+ Expected Service Life in Years
ThermoPlus R-8
For projects that require greater performance than the popular ThermoPlus line, NK offers the ultra high-performance ThermoPlus line of windows and doors.
8 R-Value 3 Glazing Layers 2 Low-E Coatings 71 % of Visible Light Transmitted (Clarity) 4 Number of Seals 60+ Expected Service Life in Years
Classic R-4
This Classic line is an excellent choice for energy-efficient projects that don’t require the highest levels of performance, but still call for the beauty and durability of a fine, custom-crafted window or door.
4 R-Value 2 Glazing Layers 1 Low-E Coatings 80 % of Visible Light Transmitted (Clarity) 4 Number of Seals 60+ Expected Service Life in Years
