Series 2300 NSL Narrow-Sightline Project-In Windows

Boyd's Series 2300 NSL is a versatile commercial aluminum narrow-sightline project-in window with thermally broken construction and a compact 2.375" main frame depth. Its slim visual profile, inward-projecting operation, and reliable performance make the Series 2300 NSL an excellent solution for contemporary buildings, window restoration projects, schools, universities, government offices, hospitals, military buildings, and other demanding commercial applications.

Tested to AW-PG80, the Series 2300 NSL combines 15 psf water resistance, 120 psf structural performance, glazing up to 1.5" thick, stainless steel four-bar friction hinges, and three hardware-package options. True divided-lite, interior, and historical muntins, blinds or dual glazing, removable screens, coordinated perimeter accessories, finish selections, and custom options support contemporary architecture, coastal-condition projects, restoration, renovation, and new construction. The standard Series 2300 Project-In is available when narrow sightlines are not required.

Series 2300 NSL Project-In Product Details

Key narrow-sightline project-in window attributes for product review:

Series 2300 NSL Product Data and Downloads

Use the current Boyd resource links below for Series 2300 NSL Project-In drawings, guide specifications, accessories, gallery images, and finish options.

When to Use the Series 2300 NSL Project-In Window

• Contemporary commercial openings where narrow aluminum sightlines and inward-projecting operation are important architectural requirements.

• Schools, universities, government offices, hospitals, military buildings, and other commercial or institutional applications.

• Window restoration, renovation, or replacement projects requiring a compact 2.375" frame and a slimmer visible profile.

• Projects requiring AW-PG80 performance, 15 psf water resistance, 120 psf structural performance, and glazing up to 1.5" thick.

• Coastal-condition projects where the documented non-impact Series 2300 NSL performance, glazing, size, anchorage, and installation conditions meet the project criteria.

• Openings requiring true, interior, or historical muntins, blinds or dual glazing, removable screens, multiple hardware packages, perimeter accessories, finish options, and customization.

Choosing a Standard or Narrow-Sightline Project-In Window

You are viewing the narrow-sightline Series 2300 NSL Project-In projected window. It opens inward but is not a side-hinged casement, and its published AW-PG80 rating is different from the standard Series 2300 Project-In AW-PG100 rating. Review the related Boyd systems below when the project requires standard sightlines, outward projection, a different performance class, 39mm thermal-strut construction, or a matching narrow-sightline fixed unit.

Series 2300 NSL Project-In Window Advantages

• Narrow sightlines create a safe, sleek contemporary appearance for projected-in commercial openings.

• Versatile thermally broken construction for contemporary architecture, restoration, renovation, and commercial new construction.

• AW-PG80 performance with 15 psf water resistance and 120 psf structural performance.

• A compact 2.375" frame accommodates glazing up to 1.5" thick.

• Stainless steel four-bar friction hinges support controlled inward-projecting operation.

• Three hardware-package paths provide standard, custodial, or pole-operated project-in control.

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

• Published CRF 55 and U-value 0.50 provide current thermal-performance references for the standard product configuration.

• Also available as the standard Series 2300 Project-In when narrow sightlines are not required.

Common Series 2300 NSL Project-In Coordination Items

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

• Interior clearance: Review the inward projection path against interior trim, blinds, shades, screens, furniture, casework, occupants, security devices, circulation paths, and maintenance access.

• Standard or narrow sightlines: Confirm whether the project requires the Series 2300 NSL or standard Series 2300 before finalizing elevations, exposed frame dimensions, details, mullions, fixed-window coordination, and performance requirements.

• Performance-class difference: The narrow-sightline Series 2300 NSL is published as AW-PG80 with 120 psf structural performance; the standard Series 2300 Project-In is published as AW-PG100 with 150 psf structural performance. Do not interchange their product data.

• Coastal-condition requirements: Coordinate design pressures, water resistance, corrosion exposure, finish, adjacent metals, drainage, flashing, sealants, anchors, substrates, and installation conditions. Series 2300 NSL Project-In is not impact rated.

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

• Muntins and restoration appearance: Coordinate true, interior, or historical muntins, grid pattern, lite divisions, profile, attachment method, finish, reglazing requirements, existing-window conditions, and reviewing-authority comments.

• Hardware and screens: Select the combination lever-and-cam, custodial cam-latch, or pole-operated hardware package and coordinate friction hinges, screens, accessibility, security, cleaning, and maintenance requirements.

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

What to Send Boyd for a Series 2300 NSL 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 narrow-sightline project-in projected operation, along with exposed frame dimensions, opening angle, hardware package, vent size, inward clearance, screens, user access, and maintenance requirements.

• Required coastal-condition criteria, design pressures, water resistance, corrosion exposure, finish, glazing, anchors, substrates, and installation conditions.

• Glass makeup, overall thickness, coatings, spacers, safety glazing, blinds or dual glazing, muntin construction, grid pattern, and required CRF or U-value.

• Restoration or historic-detailing requirements, existing-window photographs or profiles, sightlines, sash proportions, muntin details, finish, and reviewing-authority comments.

• Required AW-PG80, air, water, structural, thermal, forced-entry, security, energy-code, and jurisdictional criteria.

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

Related Narrow-Sightline, Project-In, Fixed, and Architectural Resources

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

• Commercial aluminum project-out windows for outward-opening standard and narrow-sightline projected configurations.

• Commercial aluminum fixed windows for coordinated narrow-sightline and standard non-operable openings.

• Historic-replica and window-restoration resources for sightline, profile, muntin, finish, and reviewing-authority coordination.

• Commercial window accessories for screens, panning, receptors, subsills, mullions, trims, nailing fins, 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.