4 Track Stacking Windows

Description & FAQ

4 – Track Stacking Windows Turn Your Porch Into a Screen Room AND a Sunroom

The four-track frame design allows the sections to stack behind each other, permitting the maximum amount of ventilation. You can stack the window sections to the top, the bottom or anywhere in between. And if it cools down or it looks like rain, you simply expand the sections… now you’ve got a three season porch!

What a great way to upgrade your existing porch or roof overhang into a combination sunroom / screenroom.

Heavy Gauge Construction

Our Grand Vista stacking windows feature maintenance-free aluminum and vinyl construction. High quality molded corner keys assure years of smooth, trouble-free operation.

Four Track Window Close Up     Stacking Windows by the Pool

4-Track Stacking windows are custom made to fit your openings. Matching doors and transom lites are available. Choose from three frame colours: White, Sand, and Earthstone. Choose from three vinyl colours: Clear, Bronze and Smokey Grey. Click the Specifications tab above to see colour samples.

Unique Vinyl Glazing Withstands Impacts

You can jamb your fist right into our heavy gauge 10 mil vinyl glazing with no ill effect. The space-age vinyl springs right back to its original position! Your safety is assured from flying objects like golf balls or children’s toys. Vinyl glazing reduces glare, solar heat gain and protects your furnishings from fading due to UV.

Frequently Asked Questions

What is the 4 track stacking window?
There are 4 transparent panels, each with its own track. This allows all the panels to be slid behind each other, permitting nearly 75% screen area. So when the weather is nice and all you really want is a screen room, four-track stacking windows provide the most amount of screen area. The four tracks allow the panels to be stacked all the way to the top, bottom or any combination you can imagine. The panels are glazed not with glass but with a tough vinyl film. This film can be wildly distorted and in a few minutes will return to its original shape. The panels stay where you put them because each one is spring loaded. Sometimes we are asked if 4 track windows are available with glass, but this is not possible. Glass is too heavy, and the weight would overcome the springs ability to hold the panels in place.

Can I use stacking windows in my existing porch?
Yes! That is where many of our windows are used. If you have framed openings then all you need to do is order your windows based on the deductions mentioned in the FAQ below. If your porch is held up with columns with no other framing, Craft-Bilt can build a 4 track wall system complete with 4 track windows like this:

4 Track Window Enclosure

How do I measure for 4 track windows?
When ordering your windows we require the “make size”, this is the size you need the window made so that it fits into the opening nicely. This usually means deducting 1/4 to 3/8 inches from your RO (rough opening). However, if the opening is not square, plumb or level additional deductions should be made. Check the width and height in a few places, and take your 1/4 inch deduction from the narrowest result

What colours are available for 4 track windows?
4 Track Vinyl Windows by Craft-Bilt are available in White, Sand and Earthstone.

4 Track Window Colours

The vinyl film is available in the following shades:

Stacking Windows Vinyl Colours

What is the warranty for 4 track stacking windows?

Craft-Bilt provides a 20-year limited warranty on the aluminum finish and 10 years on the vinyl film. Contact us for warranty details.

Can I install 4 track windows myself?
4 track windows install just like storm windows. There is a generous flange all around the perimeter that simply screws to your opening.

4 track stacking Windows Flange 4 track stacking Windows Flange  4 track stacking Windows

Colour matched screws are provided. Silicone sealant is available from Craft-Bilt but you can supply your own if you like. Apply a bead of sealant underneath the flange before installing. The sealant should be close to the edge, particularly at screw locations so that rain does not reach the holes made by the screws.

How do you replace the vinyl film in 4 track windows?
It is a simple matter to re-glaze your 4 track window panes. The film is rolled in just like screen. We can ship replacement vinyl film across Canada. Sometimes you can re-use the spline but if it is damaged or worn you can order that as well. While it is a simple matter to re-glaze your stacking window, you will find that the vinyl can be difficult to handle. Order extra vinyl so you have some material for practice and blunders. A hair dryer is handy to warm up the vinyl, making it easier to roll in to the grooves. There may be some small wrinkles when you are done, waving the hair dryer over the area often takes care of them. There are instructional videos on the internet to help.

How do you clean 4 track windows?
Do not use chemicals or harsh cleaners to clean the vinyl film. Mild soap and water are recommended. Contact us for our 4 track warranty and care instruction document.

How long does the vinyl film last?
The industry standard warranty on vinyl film is 10 years. However, we have had stories of the vinyl lasting well over 20 years. Contact us for our 4 track warranty details and maintenance.

Do you install 4 track stacking windows?
Craft-Bilt’s core business is contractor sales across Canada. We do our own installations in a small radius around our factory in Ajax, Ontario. Your inquiry will typically be forwarded to a local contractor who will supply and install your stacking windows or 4 track wall system.

Can I use 4 track windows in my sunroom?
Absolutely! You can order our industry-leading Grand Vista sunroom with glass or 4 track stacking vinyl windows.


4-Track Stacking Windows Specifications

  • Frame: Extruded Aluminum
  • Frame colours: White, Sand, EarthStone
  • Window panels: Super strong 10 mil Vinyl
  • Vinyl colours: Clear, Bronze, Smokey Grey and Dark Grey
  • Up to 75% ventilation
  • Full height fiberglass screen
  • Minimum width 12”, maximum height 96”
  • Mounting flange is 7/8” wide


Stacking Windows in Action

showroom-stacking-windows5-191x300 showroom-stacking-windows-184x300 showroom-stacking-windows3-192x300 showroom-stacking-windows4-190x300

4-Track Stacking Window Frame Colour Options:

White Sand Earthstone

4-Track Stacking Window Vinyl Tint Options:


Stacking Windows Vinyl Colours

Colours are approximate. If you choose your colour from this page, a PDF or a printed flyer, be prepared that the actual colour you receive may be slightly different. Selecting your colour from an actual sample is advised.


Measuring and Installation for Stacking Windows

  • Recommended deduction of ¼” from RO (rough opening) width & height
  • Measure RO in several places and make ¼” deduction from the narrowest point
  • Install from outside, fastening through the mounting flange
  • Screws provided
  • For mulling windows together use a minimum 1¾” wide post, available from Craft-Bilt

BEFORE                                                                                                  AFTER


Maintenance for Stacking Windows

  • Clean with warm soapy water and a sponge. Remove soapy water with a squeegee
  • To keep your vinyl looking it’s best, clean twice a year
  • Keep sill and side tracks free of dirt & debris
  • Do not lubricate the side tracks
  • Contact us to obtain our warranty and care document

During Installation of Stacking Windows


4-Track Stacking Vinyl Window Price *

* Please see our 20% DIY Stacking Window Promotion

  • Required rough opening for the door is 36”X 80”. The door comes with standard 18” kick plate.
  • Sometimes DIY sales are only available through a local contractor, in which case any DIY or promotional pricing on this web site does not apply.
  • Product prices and configuration are subject to change without prior notice.
  • Tax and shipping charges are not included.