Wood Ultimate Double Hung Bow and Bay
Wood Ultimate Double Hung Bow and Bay
This document is a technical manual from Marvin Architectural detailing specifications for Wood Ultimate Double Hung Bow and Bay windows. It includes measurements, installation guidelines, and structural details for various configurations.
The Wood Ultimate Double Hung Bow and Bay units feature a 6-degree angle on bows, with options for laminated pine wood or Douglas Fir head and seat boards. Installation brackets are available as an alternative to nailing fins, and there is an optional retrofit bay square jamb return. The unit's daylight, egress, and vent openings depend on the individual components of the bow or bay.
- Masonry Opening Width: Add 4 15/16" (125 mm) to the rough opening width.
- Rough Opening Height: With head and seat boards, add 2 9/32" (58 mm) to the OM height on center units.
- Masonry Opening Height: Add 3/8" (10 mm) to the rough opening height with head and seat boards.
Detailed measurements for minimum and maximum sizing and projection are provided for various configurations of bows and bays, including 3, 4, 5, and 6 wide bows, and 30°, 45°, 60°, and 90° bays. Measurements are given in both inches and millimeters.
Standard heights for bows and bays are listed, with rough opening heights and frame size heights provided in both feet-inches and millimeters.
Conversion details are provided for rough openings and masonry openings for different bay angles and bow widths, with adjustments specified for head and seat boards.
- Rough Opening and Projection Calculations: For 60° bay windows, the projection is calculated as (OM width of flanker unit PLUS 3.947) x 0.866. The rough opening width is calculated as Projection x 0.577 + 1.018 + Center OM Width.
- Masonry Opening Unit: Add 6.861" (174 mm) to the rough opening width.
The document includes detailed section drawings for 60° and 90° bay windows, specifying dimensions for rough openings, masonry openings, and projection corners.
For 30° bay masonry opening widths using clad flat casing, add 8 5/32” (207 mm) to the rough opening width. The document emphasizes the importance of precise measurements and adherence to specified dimensions for optimal installation and performance.
Catalog excerpts
19972255 Marvin Architectural Detail Manual
Open the catalog to page 2
Wood Ultimate Double Hung Bow and Bay Unit Features Wood Ultimate Double Hung - WUDHBB 6 degree angle on Bows Laminated Pine wood or optional Douglas Fir head and seat boards installed Installation brackets are available in lieu of nailing fin Optional retro fit bay square jamb return for WUDHBB Information concerning Daylight Opening, Egress Opening, and Vent Opening will be determined based on the individual components of the Bow or Bay. Bay standard operation as viewed from exterior. Bow standard operation as viewed from exterior. NOTE: Also see Wood Ultimate Double Hung Collection...
Open the catalog to page 3
Wood Ultimate Double Hung Bow and Bay Min and Max Sizing and Projection for Bows and Bays Rough Opening Configuration Projection Depth Configuration
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Wood Ultimate Double Hung Bow and Bay Standard Heights for Bows and Bays Call Number Height Rough Opening Height (w/ head & seat boards) Frame Size Height (w/ head & seat boards) Rough Opening Masonry Opening 19972255 Marvin Architectural Detail Manual
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Wood Ultimate Double Hung Bow and Bay Measurement Conversions Unit Measurements Width From Rough Opening - 30° Bay Masonry Opening Masonry Opening Masonry Opening Rough Opening - 4W Bow Masonry Opening Rough Opening (w/ head and seat boards) Rough Opening - 5W Bow Masonry Opening Rough Opening (w/ head and seat boards) Rough Opening - 6W Bow Masonry Opening Rough Opening (w/ head and seat boards) Rough Opening (w/ head and seat boards) Rough Opening (w/ head and seat boards) Rough Opening (w/ head and seat boards) Rough Opening (w/ head and seat boards) Rough Opening - 45° Bay Masonry Opening...
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Wood Ultimate Double Hung Bow and Bay Bow Rough Opening and Projection - 3 Wide, 4 Wide, 5 Wide, 6 Wide Bow Call Number (Width) 16 Number Wide 19972255 Marvin Architectural Detail Manual
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Wood Ultimate Double Hung Bow and Bay Section Details: Bow Rough Opening Outside Radius Masonry Opening 19972255 Marvin Architectural Detail Manual
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Wood Ultimate Double Hung Bow and Bay Standard Width Call Number: 30° Bay Marvin Architectural Detail Manual
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Wood Ultimate Double Hung Bow and Bay Section Detail: 30° Bay Not to Scale Operating Center Unit Rough Opening 30° Rough Opening to Projection Corner Rough Opening to Projection Corner Masonry Opening Picture Center Unit Rough Opening 30° Rough Opening to Projection Corner Rough Opening to Projection Corner Masonry Opening Flat Casing Brick Mould Casing Rough Opening Masonry Opening NOTE: 30° WUDH Bay with optional 3 1/2 (89) Flat Casing. Bow or bay assemblies with wood flat casing use enclosed profile casing. For 30° bay masonry opening widths using clad flat casing, add 6 1/4” (159) to the...
Open the catalog to page 10
Wood Ultimate Double Hung Bow and Bay Rough Opening and Projection Calculations: 30° Bay Marvin Architectural Detail Manual
Open the catalog to page 11
Wood Ultimate Double Hung Bow and Bay Standard Width Call Number: 45° Bay Call Number (Width) 19972255 Marvin Architectural Detail Manual
Open the catalog to page 12
Wood Ultimate Double Hung Bow and Bay Section Detail: 45° Bay Not to Scale Operating Center Unit Rough Opening Exterior of Sheathing 45° Rough Opening to Projection Corner Rough Opening to Projection Corner Masonry Opening Picture Center Unit Rough Opening Exterior of Sheathing 45° Rough Opening to Projection Corner Rough Opening to Projection Corner Masonry Opening Flat Casing Brick Mould Casing Rough Opening Rough Opening Optional: fill with insulation Masonry Opening Masonry Opening NOTE: 30° WUDH Bay with optional 3 1/2 (89) Flat Casing. Bow or bay assemblies with wood flat casing use enclosed...
Open the catalog to page 13
Wood Ultimate Double Hung Bow and Bay Rough Opening and Projection Calculations: 45° Bay Marvin Architectural Detail Manual
Open the catalog to page 14
Wood Ultimate Double Hung Bow and Bay Standard Width Call Number: 60° Bay Call Number (Width) 19972255 Marvin Architectural Detail Manual
Open the catalog to page 15
Wood Ultimate Double Hung Bow and Bay Section Detail: 60° Bay Not to Scale Operating Center Unit Rough Opening 60° Rough Opening to Projection Corner Rough Opening to Projection Corner Masonry Opening Picture Center Unit Rough Opening Rough Opening to Projection Corner Projection Corner to Projection Corner Masonry Opening Flat Casing Brick Mould Casing Rough Opening Rough Opening Masonry Opening Masonry Opening NOTE: 30° WUDH Bay with optional 3 1/2 (89) Flat Casing. Bow or bay assemblies with wood flat casing use enclosed profile casing. For 30° bay masonry opening widths using clad flat casing,...
Open the catalog to page 16
Wood Ultimate Double Hung Bow and Bay Rough Opening and Projection Calculations: 60° Bay Wood Ultimate Double Hung Bay 60-Degree Projection (OM width of flanker unit PLUS 3.947) x 0.866 Rough Opening Width Projection x .577 + 1.018 + Center Om Width Masonry Opening Unit Add 6.861" (174) to Rough Opening width Rough Opening Height (with Head and Seat boards) Masonry Opening Height (with Head and Seat boards) OM height on center unit(s) PLUS 2 9/32" (58) Rough Opening height ADD 3/8" (10) 19972255 Marvin Architectural Detail Manual
Open the catalog to page 17
Wood Ultimate Double Hung Bow and Bay Section Detail: 90° Bay Scale: 3" = 1’ 0" 90° Bay - WUDHBB Masonry Opening Rough Opening Flanker Frame Size Center Unit Frame Size 19972255 Marvin Architectural Detail Manua
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