Series 450 double hung windows

Series 450 Windows for New Construction

Double Hung, 2 and 3-Lite Sliders and Picture Windows

Our top of the line Series 450 combines meticulous craftsmanship with the strength and maintenance-free beauty of rigid vinyl construction to deliver exceptional value and lasting durability.

Lansing New Construction Product Video
Lansing New Construction Product Video

Available Styles

Product Close-Up View
Series 450 Double Hung Window
Feature Sheet
Product Close-Up View
Series 451 Slider Window
Feature Sheet

Standard Features

  • Beautiful, true brick-mould exterior frame perimeter
  • Both sashes operate and tilt in for easy cleaning
  • Integrated J-channel and nail fin simplify installation (Series 460 available without J-channel)
  • Insulated glass panels with optimum thermal air space featuring warm-edge spacer system
  • Block & Tackle balance system
  • Continuous head and sill on twins and triples
  • Half screen standard*
  • Custom sizes available
  • DP 35 rating (available with DP 50 option)
  • Limited Lifetime Warranty

Series 451 Slider Window Specific Features:

  • Available in 2-lite and 3-lite configurations
  • Jamb depth 3.868″

* Screens are not meant to restrain a child from falling through an open window.

Available Options

Vinyl Color Options




Painted Color Options


Brick Red



Dark Chocolate


Hunter Green



Note: Device/Monitor screen settings may affect color shown. Please refer to actual window sample when selecting colors. Laminates and exterior painted options available on select products, if they are not shown above they are not available on this product. Interior and exterior laminates available on white window only. Only use mild, water based household cleaner on painted product and rinse immediately with water. See full cleaning instructions for details. Grid offering limited to 5/8” contoured or SDL on exterior painted windows.

Grid Types

5/8-Inch Flat Grid

3/4-Inch Flat Grid

5/8-Inch Contoured Grid

1-Inch Contoured Grid

Simulated Divided Lite (SDL) Grid

Grid Patterns



Perimeter Prairie


  • Low-E Glass
  • Low-E Glass and argon gas for additional efficiency
  • Ultra Low-E Glass and argon gas
  • Obscure, tempered or double-strength glass
  • Brass and brushed nickel locks
  • Dual, push button night vents (Double Hung Only)
  • Window Opening Control Device (WOCD) to prevent falling from a window (factory applied)
  • Factory mulling of twins, triples and architectural shapes
  • Paintable or stainable wood jamb extensions (4-9/16 inch and 6-9/16 inch)
  • Charcoal aluminum mesh screen
  • Custom sizes available


Lansing Warranty Feature Image

The Lansing Warranty

Every Lansing window and patio door is backed by a limited lifetime warranty on vinyl, glass and all working parts. Each product is individually registered with a product identification number, making ordering replacement parts throughout the warranty period easy and efficient.

View Warranty & Support Details

Lansing Care and Maintenance Guide

Lansing Product Care

Lansing windows and doors are designed for easy care and maintenance. Click the button below to download Lansing’s window and door care and maintenance guide.

Download Guide