We have five sliders and five french doors (Pella)...and a lot of window washing! The french doors are all single doors and twp of the sliders are doubles (i.e., four panes of glass each). We live in the Sacramento area and enjoy bringing the outdoors in. The screen doors on the sliders are spring-loaded so they close behind you automatically, a very handy feature. Space wasn't a concern for us and we easily could have accommodated french doors throughout but for us the focus wasn't on the doors but rather on the view and the sliders are very unobtrusive in that respect. And although our home is an old-world Tuscan design, the sliders work just fine aesthetically. On the subject of window washing, we discovered the Mr. Clean AutoDry Car Washing system makes washing all those windows a breeze. It's a device that attaches to the hose and dispenses either soap or clear water. But it also dispenses de-ionized water for use in the final rinse so that windows can self-dry without spotting...a big time saver. No squeegeeing, no wiping and the windows are spotless! We wash the windows with a sponge mop, rinse with water and DI water and we're done. If you have divided light windows, it wouldn't be of much help but for large panes of glass, it's invaluable. Bob

We built in 2021 and ended up with 5 multi-sliding doors from Euro-wall. We needed impact/hurricane rated doors. All of ours are 10 ft high to fit our 12 ft ceilings. Our largest is 6-panels and 18 ft wide. We also have 4-panels that are 12 ft wide and 2-panel that are 6 ft wide. Very happy with them, except one is missing weather stripping and we have been waiting forever for the window/door dealer to send their warranty crew out to make the repair.

If you have the budget for your "dreams", go for it. If not, Stay with the Tuscany theme. You can mix a stacking door in but not sure a black door would work with your other white Tuscany doors.

(Long) the reason I ask about the sill and covered porch is I’m in the process of designing a 15’ wide bifold door between a poolhouse and pool deck, and finding a big disconnect between the glam minimalist details in the online photos vs the reality of doing this in the mid-Atlantic in a nice way. Without many local examples or manufacturers I am trying to use Marvin’s bifold door, because I’ve spec’d their other windows & doors for years with excellent service. Having issues designing the details though, when the poolhouse wall is open I want no abrupt elevation changes at the floor level interrupting the smooth plane of material between inside and outside. The trouble is for Marvin’s standard sill “performance” detail it is a whopping chunk @ 2” high AFF and 10” wide that doesn’t show in photos but is in their technical documents. This high sill is in conflict with the idea of having a visually seamless plane of inside outside space. If there must be a large surface mounted sill IMHO there needs to be visual cues of pausing and then carefully stepping over a wide curb instead of creating a confusing situation of continuous flooring but a big trip hazard in the way. Marvin provides a nice detail for recessing the 2” channel of sill into the concrete floor when framing, but they are clear that this install will not be warrantied for water or air infiltration. I would like to use the recessed channel detail anyway and keep water away using proper slope and covered porch and a flush linear drain, but as you know our ”mild” mid Atlantic climate can dump 2 feet of drifting snow and hurricanes that will blow through a flush sill into any living space anyway. I could slope and waterproof the pool house similar to a garage and sweep out a watery mess if it happens, but was hoping to use the pool house as year- round living space for guests without flooding or infiltration worries.