Door Axis 108 in x 80 in White Fiberglass Multi-Panel Stacking Sliding Patio Door, Low-E Argon Glass
Reviewed pricing, lead time, freight, and final configuration are confirmed during quote review before order release.
The Door Axis Fiberglass Multi-Panel Stacking Sliding Patio Door opens most of a glass wall: two operating panels glide and stack so the clear opening is far wider than a standard two panel slider. It serves homeowners and design-build contractors who want a 9 to 10 ft glass span with the weather resistance of fiberglass and composite, without stepping up to a folding wall system.
The panels are high-density fiberglass with full composite edges around a CFC-free polyurethane foam core, hung in a 100 percent composite waterproof frame, so nothing in the unit rusts, rots, or swells. At 108 in wide the unit runs three panels with two operating panels that stack over the fixed lite toward the ordered side; at 120 in wide it runs four panels in a bi-parting layout where the two center panels glide outward for a center opening. Every panel carries tempered Low-E insulated glass with argon fill rated at a 0.26 U-factor and a low 0.18 solar heat gain coefficient, glazed flush for a clean face. Heavy duty adjustable stainless steel rollers, a keyed locking handle, factory weatherstripping, and a water resistant draining system complete the unit, and both faces are smooth and paintable. A 144 in x 80 in four panel version and additional layouts are quoted on request.
Highlights
- Multi-panel layouts: 3-panel stacking at 108 in, 4-panel bi-parting at 120 in
- Two operating panels stack for an extra wide clear opening
- High-density fiberglass panels with composite edges; waterproof composite frame
- Tempered Low-E argon glass, 0.26 U-factor and 0.18 solar heat gain
- Heavy duty adjustable stainless steel rollers and keyed locking handle
- CFC-free polyurethane foam core and factory weatherstripping
- Water resistant draining system built into the sill
- Paintable smooth white faces inside and out
Specification Table
| Configuration | 3-panel stacking (108 in) or 4-panel bi-parting (120 in); two operating panels in both |
| Call sizes | 108 or 120 in wide by 80 or 96 in tall; order to the opening call size |
| Actual unit size | 105-3/4 in x 79-5/16 in at the 108 x 80 call size; 117-1/4 in x 95-1/4 in at 120 x 96 |
| Rough opening | 106.5 x 80 in (108 x 80); 118 x 96 in (120 x 96); other sizes confirmed during quote review |
| Panel thickness | 1-3/4 in |
| Material | High-density fiberglass panels, composite edges, composite frame and track |
| Core | CFC-free polyurethane foam |
| Glazing | Tempered Low-E insulated glass, argon filled, flush glazed |
| Thermal performance | U-factor 0.26; solar heat gain coefficient 0.18 |
| Handing | Left or Right stacking on 3-panel; center opening on bi-parting |
| Jamb depth | 8-3/16 in on the 3-panel stacking track set |
| Hardware | Keyed locking handle, heavy duty stainless steel rollers, included |
| Insect screen | Sold separately |
| Weight | About 400 lb (108 x 80); about 595 lb (120 x 96) |
| Additional sizes | 144 in x 80 in four panel and other layouts quoted on request |
| Warranty | Limited lifetime manufacturer-backed warranty, confirmed during quote review |
Included Components
- Factory assembled multi-panel fiberglass sliding patio door unit
- Tempered Low-E argon insulated glass, flush glazed in every panel
- Handle with keyed lock, factory installed
- Heavy duty adjustable stainless steel rollers and composite track
- Factory applied weatherstripping and water draining sill system
- Installation instructions
Installation Notes
- Verify the opening against the call size and the published rough opening at three points each way; large units are heavy, so plan lifting help and clear staging before delivery.
- Install a sill pan and integrate flashing with the water resistive barrier; the multi-track sill must bear continuously on a flat, level structural subfloor.
- Set the frame plumb, level, and square without racking, shimming at lock and interlock stiles; a bowed track binds the stacking panels.
- Adjust each roller set after the frame is fastened so the operating panels glide in sequence and the interlocks and keyed lock engage cleanly.
- Confirm stacking direction (left or right) or the bi-parting center layout from the exterior view during quote review.
Warranty and Support
- Limited lifetime manufacturer-backed warranty, confirmed during quote review.
- Quote review covers configuration, stacking direction, rough opening dimensions, and site access for the oversized unit.
Frequently Asked Questions
How is this different from a standard sliding patio door?
A standard slider has one fixed and one operating panel, so only half the span opens. This platform runs three or four panels with two operating panels that stack or bi-part, opening roughly two thirds of a 9 ft span or the center of a 10 ft span.
Which layout should I choose?
The 108 in wide unit stacks both operating panels to your chosen side, which suits openings where traffic flows toward one end. The 120 in bi-parting unit opens from the center outward for a symmetrical look. The 144 in four panel version is quoted on request.
What do the thermal numbers mean?
The 0.26 U-factor measures insulation and the 0.18 solar heat gain coefficient measures how much sun heat passes through. This glass package is strong in both hot and cold climates, keeping rooms with big glass spans comfortable.
Are screens or other finishes available?
The unit ships white with paintable smooth faces; insect screens are sold separately and can be added during quote review.
Documents
- Type Fiberglass Sliding Patio Door
- SKU DA-DR-PAT-FG-STACK-10880-RH
Download the available product documents below. If a document is not linked yet, use the SKU during quote review.
Project pricing, lead time, freight routing, and final configuration are confirmed during quote review before order release.
Support and request quote workflows stay available throughout specification and order planning.