Spectre Window 81 in. x 50 in. Vinyl Bay Window with Single Hung Flankers and Low-E Glass

The flagship bay unit measures 81 in. x 50 in. with a 12.5 in. projection and a 4.56 in. wall depth, built from extruded white vinyl that resists chipping, peeling, fading, and condensation. The center lite is fixed; each flanker is a single hung window with a stationary top sash, a vertically sliding bottom sash on a block and tackle balance system, cam locks, an included screen, and an 18.6 in. x 20.9 in. clear opening. Glazing is double pane insulated glass with a Low-E coating and argon fill, rated at a 0.29 U factor and 0.23 solar heat gain coefficient with a DP20 design pressure rating on the flagship bay. A 71.5 in. x 41.5 in. bow configuration built on the same single hung platform is also stocked, and both configurations take an optional colonial grid package. The wood head and seat board come ready for interior finishing.

Highlights

• Three lite angled bay with fixed center lite and operating single hung flankers
• 12.5 in. projection extends the room and creates a usable interior seat
• Wood head and seat board included, ready for interior finish
• Double pane Low-E insulated glass with argon fill
• 0.29 U factor, 0.23 solar heat gain coefficient, DP20 on the flagship bay
• Flanker screens, cam locks, and block and tackle balances included
• 71.5 in. x 41.5 in. bow configuration and colonial grid package stocked

Specification Table

Included Equipment

• Factory assembled bay or bow unit with joined frames
• Wood head board and seat board
• Flanker screens
• Cam locks and block and tackle balance hardware, factory installed
• Mounting hardware kit

Installation Notes

• Verify the rough opening and confirm the header carries the wall load; the unit itself is not load bearing.
• Support the projected unit per the released details: angled knee brackets below the seat board or cable support from the header, sized to the unit weight.
• Set the seat board level and shim so frames stay square; operate both flanker sash before fastening off.
• Flash the head with a site built or supplied roof kit detail and integrate with the weather resistive barrier.
• Insulate the seat and head cavities before closing in the interior trim.

Warranty and Support

• Warranty coverage is confirmed during quote review before release.
• Quote packages include sizing review and installation guidance for each opening.

Frequently Asked Questions

Does the bay window need extra support?
Yes. Projected units carry real weight, so plan knee brackets under the seat board or cable supports from the header per the released installation details. The flagship bay weighs about 135 lb before glass options.

What is the difference between the bay and bow configurations?
The bay is a three lite unit with a flat center lite and angled flankers projecting 12.5 in. The bow is a curved multi lite arrangement on the same single hung platform in a 71.5 in. x 41.5 in. footprint.

Do the side windows open?
Yes. Each flanker is a single hung window: the top sash is stationary and the bottom sash slides up on a balance system, with a screen included.

Can I get sizes other than the two stocked footprints?
Additional sizes are quoted on request. Share the rough opening and wall construction during quote review.

Documents

• Product Submittal Summary (PDF)
• Dimensional & Fit Reference (PDF)
• Installation & Warranty Reference (PDF)

Project pricing, lead time, freight routing, and final configuration are confirmed during quote review before order release.

Support and request quote workflows stay available throughout specification and order planning.