Stacking Doors · Milgard · Arizona

Stack the glass. Open the whole view.

Stacking — or panoramic — doors are large, multi-slide panels that glide and stack on top of each other as they open, turning a glass wall into a wide, unobstructed invitation to the backyard. Greco Roman installs Milgard stacking glass walls across the Phoenix metro.

Why a Stacking Door

Three reasons they make the room.

Large fiberglass windows on the exterior of a home

Extra-large opening

Panels stack onto each other instead of just sliding by — for the widest possible opening to the outdoors.

Stacking doors in a home

Contemporary lines

A modern design with narrow frames keeps the look clean, sleek, and panoramic.

Vinyl doors in a client's dining room

Energy efficient

Low-E coatings and gas fills hold the temperature and seal out the desert heat year-round.

Stacking Doors

Milgard Stacking Glass Walls

Large, multi-slide panoramic doors. Available in two-, three-, and four-panel configurations, the panels glide and stack on top of one another to create an extra-large opening — with Low-E glass, gas fills, and slim contemporary frames that seamlessly blend interior and exterior.

Aluminum

AX650

Ideal for large openings — panels stack on top of each other for that Midcentury Modern look.

Moving Glass Wall · durable & energy efficient

Aluminum

AX450

Engineered to stack when fully open for an even larger opening that fully merges inside and out.

Moving Glass Wall · maximum opening

Vinyl

VX350

The latest engineering — easy to operate, with state-of-the-art hardware and a low-maintenance frame.

Moving Glass Wall · never needs painting

Panel Configurations

Icon representing a two panel stacking door
2-Panel
Icon representing a three panel stacking door
3-Panel
Icon representing a four panel stacking door
4-Panel

Frame Finishes

White

Black

Almond

Bronze Anodized

Satin Anodized

Warmtone

Clear Anodized

Low-E glass and gas fills come standard for efficiency. Add decorative grids to match your architecture or obscure/privacy glass where you want seclusion.

Time to Replace?

Three signs your stacking door is done.

Sticking

Hard to open or close

Heavy panels that drag or won’t glide point to a worn track or a frame that’s shifted out of true.

Damage

Cracks & warping

Visible cracks or warped panels and frames hurt the look and break the weather seal.

Drafts & bills

Air through the gaps

Drafts around the frame and climbing energy bills mean the seal has failed and your HVAC is straining.

Fiberglass windows and doors in a fully renovated kitchen
What to Expect

Three steps, start to finish.

1. Measure & quote

We measure the opening exactly, recommend the right panel count and series for your space, and quote it.

2. Remove & set frame

Out with the old door and frame. We level the track dead-true for the heavy panels and set the frame square.

3. Install, seal & test

Panels hung and aligned for a tight glide, weatherstripped and sealed, then tested before we clean up.

Why a Pro Install Matters

The hard parts, handled.

Big glass openings are unforgiving. Our old-world craftsmanship lives in the details most installers miss.

Level track & floors

Uneven floors make heavy panels bind. We measure and shim precisely so the doors glide true, not stick.

Wall structure

Wide stacking walls are heavy. We confirm the opening can carry the load before we cut — no sagging later.

Proper sealing

High-quality weatherstripping and sealant stop air and water intrusion where cheaper installs fail.

Backed & Built Right

Protected for the long run.

Your Milgard stacking glass wall is backed by an industry-leading warranty — and Greco Roman stands behind every install with professional care at minimal cost.

Decades of door experience, old-world craftsmanship, and only the highest-quality materials. That’s why a DIY job on a wall this size isn’t worth the risk.

“A construction company that does windows — not a window company that installs.”

Free, No-Pressure

Ready to open up the view?

Schedule your free in-home consultation with our expert installers and see a Milgard stacking glass wall in your own space.