From Page AW-10 Hunter Douglas Price & Reference Guide:

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EverWood X-Tra - 2½" Slat Product Specifications
Size Standards
SINGLE BLINDS
Width
Minimum ordered width:
 Inside mount 11"
 Outside mount 10 1/2"
Maximum ordered width 96"

Height
Minimum ordered height 12"
Maximum ordered height* 120"

Area Sq. Ft.
Maximum single blind 35

MULTIPLE BLINDS
ON ONE HEADRAIL
Width
Minimum overall ordered width 21 1/4"
Maximum overall ordered width 120"

Height
Minimum ordered height 12"
Maximum ordered height 120"

Blinds
Maximum number of blinds 3
Space between blinds 1/4"

Area Sq. Ft.
Maximum 90

*Width and height maximums vary with blind square footage; refer to price chart for guidance.

Size standards for single blinds apply to each individual blind

Note: When pricing multiple blinds on one headrail, price each blind separately; then add together for total price.

Mounting Requirements
Inside Mount
Minimum casement depth,
bracket attachment:
 End mount 2"
 Over head 2"
Minimum casement depth, fully recessed with valance 3 1/2"
Allow 3/8" from back of bracket for slat rotation

Outside Mount
Minimum flat mounting
surface height
1 3/4"
Recommended width
overlap (per side
and top & bottom)
1 1/2"

Intermediate Mounting Brackets
Blind widths Brackets
  Up to 48" 0
  48" to 60" 1
  60" to 96" 2

CONTROL OPTIONS
  •  
Standard: Tilt left (L), cord right (R).
  •  
Optional: Tilt R, cord L
Tilt R, cord R
Tilt L, cord L
  •  
Blinds less than 22 1/2" wide must have split controls (L/R or R/L).
  •  
Blinds less than 11" wide will have a tilter in the center.

Finished Dimensions
Inside Mount
Blind width 1/2" less than
ordered width
Blind height Ordered height

Outside Mount
Blind width Ordered width
Blind height Ordered height

Recommended overlaps: 1 1/2" on the sides and at the top and bottom, to reduce light gaps and help ensure privacy; this also allows the headrail to be mounted completely above the window opening.

 
Valance Dimensions
Inside Mount
1/8" less than ordered width

Outside Mount
1" greater than ordered width

Standard valance return lengths:
  No extension bracket 2 3/4"
  Small extension bracket 4 7/8"
  Large extension bracket 6 7/8"

 
2 1/2" EverWood Stacking Heights
DROP: 36" 48" 60" 72" 84" 96"
2 1/2" SLATS WITH BRAIDED LADDER 6" 7 3/16" 8 3/8" 9 9/16" 10 3/4" 12"