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See all results048405 · Application Note · Rev A · Oct 2009 · English · PDF, 1 page, 86 KB
Lutron Sivoia QS Roller Shades Application Note: Custom Seams in Angled Cable Guided Shades (048405)
Lutron's application note on why custom seams in angled cable guided roller shades may miss the mullions.
Lutron 048405 Rev A (October 2009), Sivoia QS Roller Shades Application Note: Custom Seams in Angled Cable Guided Shades. https://assets.lutron.com/a/documents/app note 405 - custom seam in angled cable guided shade.pdf, via https://newwaykl.com/resources/lutron/roller-shades/sivoia-qs/lutron-sivoia-qs-roller-shades-application-note-custom-seams-in-angled-cable-guided-shades/
About document 048405
Lutron Application Note 405, document 048-405 revision A of 20 October 2009, is a one-page note: why seams miss the mullions, sag of up to 2 ft, advice against aligning seams, and a diagram.
What note 048405 covers
Lutron document 048405 has these five sections, all on its one page.
- Custom seam locations in angled cable guided shades
- Why sag moves the seams relative to mullions
- Effect of the installed angle on sag
- Lutron's recommendation on specifying seams
- The same shade drawn vertical and angled
Specifications in 048405
Lutron document 048405 prints nine values in the groups the document uses, each with the document's unit. The page link beside each group opens the PDF where the group starts.
- Shade type covered
- Angled cable guided shades with custom seam locations
- Sag away from the window
- Up to 2 ft (no metric value printed)
- Recommendation
- Do not specify seams to line up with external features
- Positions drawn
- Shade positioned vertically; same shade positioned at an angle
- Features marked
- Seam locations, mullions, up to 2 ft of sag
- Application note
- #405
- Number as printed
- 048-405
- Revision
- A
- Date printed
- 20 October 2009
Facts Lutron states in 048405
The values Lutron document 048405 states, as published:
- Document
- Application Note 405, number 048-405, revision A, printed 20 October 2009
- Subject
- Custom seam locations in angled cable guided shades
- The problem
- Seams may not appear to line up with features outside the shade, such as mullions
- Effect of sag
- On an angled shade the sag adds fabric to the total length, shifting the seams relative to the mullions
- Sag distance
- The shade can sag up to 2 ft away from the window (no metric value printed)
- Effect of installation angle
- Slight variations in the shade angle at installation change the amount of sag and move the seams again
- Lutron's recommendation
- Lutron does not recommend specifying seams with the intent of aligning them with external features
- Diagram
- The same shade drawn vertical and angled, seam locations against two mullions, up to 2 ft of sag marked
- Products named
- Angled cable guided shades only, with no drive, fabric or model number named
Questions about document 048405
The answers come from Lutron document 048405 and New Way's record of it.
What is Lutron Application Note 405?
Lutron's one-page note names no drive, fabric or model number; angled cable guided shades are its only subject.
Which revision of 048405 is current?
Rev A, dated October 2009, is the revision Lutron publishes. New Way checked it against assets.lutron.com on 16 October 2026.
Which roller shades does 048405 cover?
Lutron Sivoia QS roller shades.
Why do seams on an angled shade miss the mullions?
Lutron Application Note 405 states that sag adds fabric to the total shade length of an angled cable guided shade. The shade can hang up to 2 ft from the window, shifting where the seams fall against the mullions.
Should a specification ask for seams aligned with the mullions?
Lutron does not recommend specifying seams so that they line up with mullions or other features outside the shade. Seam positions set for a vertical shade move once the shade hangs and sags at an angle.
Does the installed angle change where the seams fall?
Lutron Application Note 405 states that slight variations in the installed angle change the amount of sag. The seam locations move with it.
How far can an angled shade sag from the window?
Lutron Application Note 405 puts the sag of an angled shade at up to 2 ft from the window. Lutron prints the figure in feet only, with no metric value, and gives no sag value for a particular angle.
What does the diagram in Application Note 405 show?
Lutron's diagram draws the same shade twice, once vertical and once at an angle. The seam locations sit against two mullions, with up to 2 ft of sag marked on the angled shade.
Other Sivoia QS application notes
Application notes for the same Sivoia QS system:
| Document | Drive class | Revision | Date |
|---|---|---|---|
| 048562Application Note: Alkaline Battery Screening and Diagnosis | Roller 20 to 300 | A | Jul 2015 |
| Application Note: Blink Codes for Shades and Venetian Blinds | Roller 20 to 300 | ||
| 3683231Application Note: Care and Maintenance of Window Treatments | Clutch, Commercial Contract Manual, Roller 20 to 300 | C | |
| 048736Application Note: Maximizing Light Blockage with Guestroom Window Treatments | Roller 20 to 300 | C | Jul 2022 |
Documents used with 048405
Lutron application note 048-404 covers cable guided shade fabric sag; drawing 0285-GUSH-CMT-S is the cable guided shades typical section. Lutron documents 045336 and 045324 are the cable guided installation guides for the turnbuckle and the upper mounting bracket designs.
| Document | Type | Revision | Date |
|---|---|---|---|
| 045336Roller Shades Installation Guide: Cable Guided (Turnbuckle Design) | Installation Guide | B | |
| 085835Serena Open Roll Roller Shades Specification Submittal | Specification Submittal | A | Feb 2026 |
| 369612Pico Wireless Control Specification Submittal | Specification Submittal | Q | Jun 2025 |
| 0454114-Group RF Remote Control Installation Guide | Installation Guide | D | Jan 2015 |
| 045520Basic Wiring and Setup Installation Guide | Installation Guide | B | Nov 2016 |
| CAD Drawing: 30-Output Configurable Power Panel Enclosure (Power Modules Sold Separately), 35V Output, Elevation View (Front) | CAD Drawing | ||
| CAD Drawing: 30-Output Configurable Power Panel Enclosure (Power Modules Sold Separately), 35V Output, Plan View (Bottom) | CAD Drawing | ||
| 045000710 Output Power Panel Power Supply (12 V) Installation Guide | Installation Guide | A | Jul 2025 |
| 08533510-Output Smart Panel Specification Submittal | Specification Submittal | D | Apr 2020 |
| Roller Shades Wiring Diagram: Multiple Shades per Single QS Smart Panel | Wiring Diagram |
Revisions of 048405
This page always shows the revision Lutron publishes today. Lutron replaces the file in place and does not keep earlier revisions online.
| Revision | Date | Status |
|---|---|---|
| A | Oct 2009 | Current. The file on assets.lutron.com. Checked 16 Oct 2026. |
Not covered in 048405, and what to read next
Lutron Application Note 405 gives no sag figure for a given angle, no seam spacing rule and no installation steps.
Publisher and citation for document 048405
Lutron Electronics Co., Inc. publishes document 048405, Rev A, and serves it from assets.lutron.com. New Way hosts no copy and last checked the file there on 16 October 2026.
Lutron and Sivoia QS are trademarks of Lutron Electronics Co., Inc.
Reviewed by Edmond Hong, Technical Specialist, New Way.
Specifying Sivoia QS?
New Way supplies and installs Lutron Sivoia QS shading in Malaysia and Singapore. A New Way specifier can check your shade schedule and drawings before you submit.
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