Series 4300 Aluminum Project-Out Windows

Boyd's high-performance Series 4300 is a commercial aluminum project-out window that provides a modern solution for contemporary architecture. Clean sightlines and outward-projecting operation complement new construction for colleges, schools, offices, government buildings, hospitals, military facilities, and other demanding commercial or institutional applications.

Tested to AW-PG100, the thermally broken Series 4300 features a 4" main frame, dual corner-key construction, inside- or outside-set glazing up to 1.5" thick, and 15 psf water resistance for powerful weather and coastal conditions. Stainless-steel four-bar friction hinges can be coordinated with standard, custodial, telescoping push-bar, or rotary operating hardware, while true divided-lite, interior, and historical muntins, blinds or dual glazing, removable screens, perimeter accessories, finish selections, and custom options support contemporary new-construction and replacement requirements. Impact-rated Series 4300 Project-Out configurations are available where supported by current approval documentation.

Series 4300 Project-Out Product Details

Key commercial project-out window attributes for product review:

Series 4300 Product Data and Downloads

Use the current Boyd resource links below for Series 4300 Project-Out drawings, guide specifications, accessories, gallery images, and finish options.

When to Use the Series 4300 Project-Out Window

• Contemporary new-construction openings requiring outward-projecting operation, clean sightlines, and a modern commercial-window appearance.

• Colleges, schools, offices, government buildings, hospitals, military facilities, and other commercial or institutional applications.

• Projects requiring AW-PG100 performance, a 4" thermal-break frame, 15 psf water resistance, 150 psf structural performance, and glazing up to 1.5" thick.

• Coastal-weather and impact-related projects where the selected Series 4300 Project-Out configuration, glazing, size, anchorage, installation conditions, and approval documentation meet the project criteria.

• Openings requiring inside- or outside-set glazing, true or simulated muntins, blinds or dual glazing, removable screens, multiple operating-hardware packages, perimeter accessories, finish options, and customization.

• Projects requiring a projected-out window rather than a side-hinged casement or inward-opening projected unit.

Choosing a Boyd Project-Out Window

You are viewing the Series 4300 outward-opening projected window. It is not a side-hinged casement. Impact-rated configurations are available, while blast capability is not listed for this product. Review the related Boyd systems below when the project requires inward projection, a shallower frame, narrow sightlines, 39mm thermal-strut construction, side-hinged casement operation, or a matching fixed unit.

Series 4300 Project-Out Window Advantages

• High-performance projected-out design provides a modern window solution for contemporary architecture.

• Clean sightlines complement colleges, schools, offices, government buildings, hospitals, military facilities, and other new-construction applications.

• AW-PG100 performance with 15 psf water resistance and 150 psf structural performance.

• A 4" thermally broken main frame accommodates inside- or outside-set glazing up to 1.5" thick.

• Dual corner-key construction supports demanding commercial, institutional, and coastal-weather conditions.

• Stainless-steel four-bar friction hinges can be coordinated with lever-and-cam, custodial, telescoping push-bar, or rotary operating hardware.

• Two rows of TPE weatherstripping at all sash members support dependable air and water performance.

• True divided-lite, interior roll-form, and applied historical or simulated muntins support contemporary, traditional, and restoration designs.

• Blinds or dual glazing and tight-fitting removable screens expand project flexibility.

• Panning, nailing fins, leg extenders, receptors, subsills, mullions, trims, finishes, and custom options support varied opening and installation conditions.

• Published CRF 55 and U-value 0.61 provide current thermal-performance references for the standard product configuration.

Common Series 4300 Project-Out Coordination Items

• Projected-out operation: Confirm that the documents require an outward-opening projected window rather than a side-hinged project-out casement. Coordinate hinge location, opening angle, operating-hardware package, hardware reach, opening force, user access, and ventilation strategy.

• Exterior clearance: Review the outward projection path against walkways, railings, sunshades, screens, louvers, adjacent walls, security conditions, maintenance access, and other exterior obstructions.

• Coastal, impact, and powerful-weather requirements: Coordinate design pressures, water resistance, impact criteria, approval documentation, glazing, corrosion exposure, finish, adjacent metals, drainage, flashing, sealants, anchors, substrates, and installation conditions for the selected configuration.

• Glazing-set direction: Confirm inside- or outside-set glazing, complete glass makeup, overall thickness, safety glazing, glazing access, blinds or dual glazing, coatings, spacers, and required CRF or U-value.

• Muntins and appearance: Coordinate true divided-lite, interior roll-form, or applied historical muntins, grid pattern, lite divisions, profile, attachment method, finish, reglazing requirements, and any restoration criteria.

• Hardware and screens: Select the lever-and-cam, custodial, telescoping push-bar, or rotary hardware package and coordinate friction hinges, screens, wickets, accessibility, security, cleaning, and maintenance requirements.

• Member thickness: The live product copy and current guide specification list different sash-wall values. Confirm the governing drawings, certified test information, approved specification, and current product documentation before submittal or release.

• Openings and accessories: Verify field dimensions, rough openings, substrates, anchors, panning, nailing fins, leg extenders, receptors, subsills, mullions, trims, sealants, drainage, finishes, and surrounding construction before release.

What to Send Boyd for a Series 4300 Review

Send as much of the following project information as available:

• Project name, location, building type, bid date, construction schedule, architectural drawings, elevations, window schedules, specifications, and opening sizes.

• Confirmation that the opening requires project-out projected operation, along with opening angle, operating-hardware package, vent size, exterior clearance, screens, wickets, user access, and maintenance requirements.

• Required coastal-weather and impact criteria, applicable approval documentation, design pressures, water resistance, corrosion exposure, finish, glazing, anchors, substrates, and installation conditions.

• Inside- or outside-set glazing direction, glass makeup, overall thickness, coatings, spacers, safety glazing, blinds or dual glazing, muntin construction, grid pattern, and required CRF or U-value.

• Required AW-PG100, air, water, structural, thermal, forced-entry, security, energy-code, and jurisdictional criteria.

• Panning, nailing-fin, leg-extender, receptor, subsill, mullion, trim, anchor, sealant, drainage, substrate, installation, finish, and submittal requirements.

Related Project-Out, Project-In, Fixed, and Architectural Resources

• Commercial aluminum project-out windows for projected, casement, thermal-strut, standard, historic, and narrow-sightline selection guidance.

• Commercial aluminum project-in windows for inward-opening projected and casement configurations.

• Commercial aluminum fixed windows for coordinated non-operable openings and matching elevations.

• Commercial window accessories for screens, panning, nailing fins, leg extenders, receptors, subsills, mullions, trims, and related coordination.

• Commercial aluminum finish options for standard and custom anodized or painted finish review.

• Architectural resources, CAD details, specifications, and product support for project documentation.