Stacking vs. pocketing
- Stacking multi-slide: panels slide and stack behind one fixed or sliding panel. No wall cavity needed beyond the opening itself.
- Pocket multi-slide: panels slide into a pocket built into the adjacent wall so the opening is completely clear. Requires wall space and construction to create the pocket.
- Corner configurations: some systems open at a corner with no post, which requires careful structural design.
What converting a standard opening involves
Widening an opening means removing wall and installing a header sized for the new span. That typically requires engineering, a building permit from the City of Scottsdale or the Town of Paradise Valley, and stucco and interior finish work. Plan for HOA review too if the elevation changes visibly.
What the estimate should address
Large glass walls are where quotes differ most, so get these in writing:
- The exact system: brand, series, panel count, stacking or pocketing direction, and the overall size
- Structure: whether the opening is being widened, who provides the engineering and header, and who pulls the building permit
- Sill type and drainage: flush or raised sill, and the drainage plan for monsoon rain at that sill
- The glass package: tempered dual-pane with hot-climate Low-E, with NFRC U-factor and SHGC
- Frame finish inside and out, and confirmation the finish is offered in that size
- Finish work: stucco, drywall, flooring at a flush sill, and paint, and which of those is in the price
- Screens: whether a screen system is included and what type
- HOA paperwork if the elevation changes
- Warranties and schedule: product and workmanship warranties, manufacturing lead time, and install duration
Sills, dust, and monsoon rain
Multi-slide doors come with different sill options: flush (recessed into the floor for a seamless transition) or raised/surface-mounted. Flush sills look beautiful but need a proper drainage plan, especially on patios exposed to monsoon rain. Wide tracks also collect dust, so ask how the track drains and how it is cleaned.
