Stack to one side
All the panels slide toward one end of the opening and park behind each other. One panel width stays covered, and the rest of the wall opens.
Aluminum multi-slide · Own crew · HomeStars Best of 2025
Stacking Patio Doors in Toronto and the GTA
Aluminum stacking doors with three or more sliding panels that park behind each other, so a whole back wall opens to the yard. Supplied and installed by our own crew across Toronto and the GTA.
Our own crew
We measure and install every door ourselves. No subcontractors.
15-year labour warranty
Better View covers the installation work for 15 years.
European aluminum systems
Schüco and other premium aluminum sliding systems.
HomeStars Best of 2025
Recognized by HomeStars for customer satisfaction.
What they are
What is a stacking patio door?
A stacking patio door, also called a multi-slide door, has three or more sliding glass panels in one wide frame. When you open it, the panels slide along their own tracks and park behind each other, so most of the wall opens. When it is closed, you get a wide, nearly uninterrupted view of the yard.
Wider than a regular slider
A standard patio door has two panels, one fixed. A stacking door has three or more, and most of them move.
Panels stack behind each other
Each panel runs on its own track and slides behind the next, so they take up little room when open.
Slim aluminum frames
Aluminum is strong enough to hold large glass panels in a thin frame, so you see more glass and less frame.
Made for cold winters
Thermally broken aluminum frames with double or triple glazing, made to measure for the opening.
Compare large doors
Stacking, lift-and-slide or folding?
All four open a wide wall in aluminum. The difference is how the panels move and how much of the opening clears. Lift-and-slide photo courtesy of Schüco; the others are our installs.
This page
Stacking Multi-Slide Doors
Three or more sliding panels that stack behind each other. One panel width stays covered unless the panels slide into a wall pocket.
Three or more panelsWide view when closedPanels stay inside the frame
Largest sliding panels
Lift-and-Slide Doors
Turn the handle and the panel lifts onto rollers, glides open, then lowers back onto its seals when closed.
Very large, heavy panelsSlim sightlinesLight to operate
Explore this option 
Open the whole wall
Folding (Bifold) Doors
Panels fold and stack to one or both sides, so almost the full width of the opening clears.
Nearly full-width openingPanels fold to the sideNeeds room for the stack
Explore this option 
More glass, simpler system
Oversized Sliding Doors
A larger-than-standard two- or three-panel slider for a bigger view without changing how the door works.
Familiar sliding operationBigger glass panelsOften fits a widened opening
Explore this option Panel layouts
Three ways a stacking door can open.
The layout decides how much of the wall clears and where the panels sit when the door is open. Furniture, steps and railings need to leave room for them.
Open from the middle
The panels part in the centre and stack to both ends, so the opening clears in the middle. A good fit for a door centred on a room or a view.
Slide into the wall
On a pocket system the panels slide into a cavity built into the wall, so the opening clears almost completely. It has to be planned with the wall framing, so it suits new builds and major renovations.
Stacking Door Cost
What affects the cost of a stacking patio door.
Every stacking door is made to measure, so we measure the opening before we quote. These are the choices that move the price up or down.
Width and height
Wider and taller openings take bigger, heavier panels and more glass.
Number of panels
Three panels cost less than four or six. More panels open a wider wall.
Layout
Stacking to one side, opening from the middle, or sliding into a wall pocket each change the system and the work.
Glass
Double or triple glazing, plus privacy, sound or sun-control glass, all change the price.
Frame colour
Black and other colours, and a different colour inside and out, can change the price.
Structure and threshold
Widening an opening usually needs a new beam or header, and the threshold has to meet the floor and the deck or patio.
Send photos and rough sizes for a faster quote. Financing is available.
Financing optionsOur installs
Stacking doors we have installed.
Multi-panel aluminum sliding doors from our completed projects, on finished homes and custom new builds. Tap a photo to see it full size.
See more completed projectsCommon project questions
Answers before you request a quote.
What is a stacking patio door?
A sliding door with three or more glass panels in one wide frame. The panels slide along their own tracks and park behind each other, so most of the wall opens. It is also called a multi-slide door.
How much does a stacking patio door cost in Toronto?
It depends on the width and height of the opening, the number of panels, the layout, the glass, the frame colour, and whether the opening needs a new beam or header. We measure before we quote, so the price reflects your actual opening. Send photos and rough sizes to get started.
How many panels can a stacking door have?
Three or more. The number depends on the width of the opening and how wide you want each panel. We size the panels to the opening at the site visit.
Stacking or folding: which opens wider?
A folding door clears almost the whole opening, because the panels fold to the side. A stacking door keeps one panel width covered, unless the panels slide into a wall pocket, but it gives a cleaner, wider view when closed and the panels stay inside the frame.
Can you replace my patio door with a stacking door?
Often, yes. If the new door fits the existing opening, it can go straight in. If you want the opening wider, it usually needs a new beam or header, so we look at the structure first.
Are aluminum stacking doors warm enough for Toronto winters?
The aluminum systems we install have thermally broken frames, with an insulating break inside the profile, and take double or triple glazing. We confirm the glass and performance for your door in the quote.
Do you install stacking doors on new builds?
Yes. Many of our large-door installs are on custom homes and additions. Send the drawings and construction timing, and we can plan the door and its opening with your builder.
Which areas do you serve?
Toronto and the GTA, including North York, Etobicoke, Mississauga, Oakville, Brampton, Vaughan, Thornhill, Markham, Richmond Hill and Caledon. Our office is in Etobicoke.
At a glance
Better View Solutions supplies and installs aluminum stacking patio doors (multi-slide doors) across Toronto and the GTA with its own crew. Three or more sliding panels stack behind each other to one side, open from the middle, or slide into a wall pocket, on renovations, additions and custom new builds. Frames are thermally broken aluminum with double or triple glazing.
- Doors
- Aluminum, three or more panels
- Installed by
- Better View's own crew
- Projects
- Renovations, additions, new builds
Project planning
What we review before the project moves forward.
01
Opening width and height, and whether the opening stays, gets wider, or is part of a new build
02
How many panels, which way they stack, and how much of the wall needs to open
03
Threshold, floor, deck or patio height, and drainage on that side of the house
04
Glass, frame colour inside and out, screens and locks
How Better View helps
How we install a stacking door, step by step.
01
Send photos and rough sizes
Interior and exterior photos of the wall, rough width and height, and drawings if the opening is changing.
02
Site visit
We measure, look at the structure above the opening and the threshold, and settle the panels, layout and glass with you.
03
Order the door
The door is made to measure for the confirmed opening, panel layout, glass and colour.
04
Prepare the opening
On a renovation we take out the old door. If the opening is getting wider, the beam or header goes in first.
05
Set and seal the frame
Our crew sets the frame level and square on a properly supported sill, then insulates and seals it to the house.
06
Hang and adjust the panels
We hang the panels, adjust them so they slide and lock smoothly, and clean up.
Project review Drawings and photos welcome Clear next steps
Ready to open up the back of the house?
Send photos of the wall and rough sizes, and tell us how wide you want it to open. We will tell you what fits and what to check next.