When deciding on french door coverings, the key is to think of the door as a window, which happens to be in a door. It is usually best to use the same products as those already on windows in that room, for consistency. Blinds with smaller slats are recommended as door window treatments because larger blinds may
interfere when opening the door. If you prefer to completely block out light, choose a blackout roller or room darkening honeycomb shade as a door window covering. A light filtering honeycomb shade will gently filter in natural light, yet offer you the privacy you desire. It is common to use hold down brackets at the bottom so your blind or shade
won't flop around as the door opens and closes. The product can be easily removed from the bracket whenever you want to raise it.
Wood blinds with smaller slat sizes and mini blinds are typically used for French doors and smaller windows. Woven wood shades are also an option. They offer different levels of light control and come in an assortment of diverse looks.
Sliding Doors:
Verticals are very popular for sliding doors, despite their diminishing popularity in general. They can be installed within the frame or over the glass. When choosing sliding door coverings don't necessarily choose a vertical if the other room products
are something other than verticals. Consistency is important, too.
Another possibility are
Sheer Vertical Blind - essentially a cellular shade that runs sideways along a track. You can also use horizontal blinds, but should consider putting two-on-one headrail, to make it easier to get out (you can raise one side and leave the other
down).
Harsh sun:
Honeycomb shades provide superior insulation. The more honeycomb cells (the most is 3) and the larger the cell size (the largest is 1 1/2"), the better the insulation.
When closing blinds, you'll maximize their insulation if you close the blinds with the leading edge up.
Shop our most popular energy-efficient products.
Very large windows:
Whenever a window covering is extremely large, its weight makes it difficult to raise and puts unnecessary tension on the strings (which may cause the strings to break). When dealing with large window treatments you may need to consider special control options. If the shade is very large, everyone will benefit from
this option. The manufacturers have size guidelines that tell you whether the controls are suggested. One type is called EasyRise; another EasyUp. Small children and elderly people sometimes need this option even on smaller shades.
For blinds, consider dividing them up into multiple blinds on a single headrail, or order multiple blinds and install them side-by-side. Usually there are multiple windows within a single opening, so you should usually divide up the blinds to line up with the windows. When you do this, order ONE valance to
span all the headrails to make it appear to be one single product.
Hard to reach windows:
Consider specifying extra long cords so you can open or close a product. Some honeycomb shades and blinds can be made with a remote control.
View recommended shades.
Front of house windows:
It is common to want the front of your home to be as uniform as possible-just how uniform is up to you. Most people just make sure that the front products are generally white. Most
honeycomb shades have white backings despite their colored inside-facing fabric. Some
aluminum miniblinds can be made as "duo-tones" which are white on the
back.
If a stained room faces front and you're using
stained shutters or
wood blinds, then you'll have to decide if it's acceptable visually. Most customers think this is fine.
The more symmetrical your home the more likely the products should be similar. People often use one product across the front; however, many also use one for the first floor and another for the second. It's your house, so whatever you feel is appropriate should be fine.
There are many choices when deciding on a window treatment for french doors. 
When you have a window with the view of a golf course, pool, mountains, etc., you should consider a product such as a shade, that pulls up as tightly as possible. 
All quality products are water resistant. Even good 
