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Access Door

Access Door
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Access Door

Product catalog summary
Company Overview: Karp Associates, Inc., founded in 1956, is a prominent manufacturer and distributor of access doors, with roots tracing back to 1925. Located in Maspeth, Queens, the company operates a 44,000 square foot facility and is dedicated to environmental sustainability, utilizing recycled materials and eco-friendly processes.
Environmental Policy: Karp is committed to sustainability, employing recycled steel and environmentally safe powder paint finishes. The company engages in energy-saving initiatives and uses recycled materials for packaging, aiming to minimize environmental impact through its manufacturing processes.
Product Specifications: Karp offers a diverse range of access doors, each with unique features and standard sizes:
  • HA Plastic Panel: Made from high-impact styrene plastic, suitable for all surfaces, with a pivot hinge and snap friction catch. Sizes range from 6x4 to 22x22 inches.
  • DSB-214SM: Surface-mounted door with single-piece frame construction, available in sizes from 8x8 to 24x24 inches.
  • ME Door: Economical and durable, with a concealed continuous hinge, available in sizes from 6x6 to 24x24 inches.
  • PF Door: Lightweight with bendable tabs for drywall installation, available in sizes from 8x8 to 24x24 inches.
  • MX Insulated Exterior Door: Designed for outdoor use with galvanized steel and neoprene gasketing, available in sizes from 12x12 to 24x24 inches.
  • FG Gypsum Ceiling Door: Blends seamlessly into drywall ceilings, available in sizes from 12x12 to 24x24 inches.
  • KDW Door: Designed for drywall installations with a textured frame, available in sizes from 6x6 to 36x24 inches.
  • DSC-214M: Superior door for new installations or remodeling, available in sizes from 12x12 to 36x24 inches.
  • RDW Door: Recessed to receive drywall panels, available in sizes from 12x12 to 36x36 inches.
Manufacturing and Customization: Karp's Robotics Department enhances production efficiency, and the Special Custom Door Department addresses unique customer needs with dedicated staff for technical advice and custom orders.
Specifications Overview: Access doors are categorized by specifications and intended use, including models like RDWPD, KRP-150FR, and KRP-350FR. Each type features specific materials, hinge types, lock mechanisms, and finishes.
Standard Sizes and Weights: Detailed tables list standard sizes for each access door type, with corresponding wall or ceiling opening dimensions, number of latches, and shipping weights. Sizes range from 8x8 inches to 48x48 inches, with weight variations based on model and material.
Fire-Rated Access Doors: Fire-rated models like KRP-150FR and KRP-350FR are insulated and rated by Underwriters Laboratories for 1.5-hour "B" label in walls and 3 hours in ceilings by Warnock Hersey. They include fire-rated insulation, self-latching mechanisms, and automatic closers.
Non-Insulated Fire Rated Access Doors: Models like KRP-250FR and KRP-450FR are rated for 1.5-hour "B" label in walls, featuring continuous piano hinges and spring-loaded sliding bolt latches.
Recessed Access Doors: Models like DSC-210 and DSC-210PL are designed for drywall or tile ceilings, with concealed pivoting rod hinges and recessed panels for tile thickness.
Security Access Doors: Security models such as DSB-123SD-MS and DSB-123SD are built for medium to maximum security applications, featuring heavy-duty steel construction and tamperproof locks.
Specialty Items: Specialty access doors like KSTDW, KSTC, and KSTE are designed for complete concealment in drywall ceilings or grid systems, with flame retardant gasketing and controlled action devices.
Valve Boxes and Duct Doors: Valve boxes (KSMB, KRVB) and duct doors (KCD, KHD) are customizable, featuring galvanized steel construction, neoprene gasketing, and fiberglass insulation.
Conclusion: The document provides comprehensive specifications and options for access doors, addressing various installation needs, including fire-rated, security, and specialty applications. Custom sizes and modifications are available upon request.
Overview: This document details technical specifications and options for Karp Associates' floor access doors, roof hatches, and locking devices, including materials, dimensions, and features for various models.
Floor Access Doors:
  • KAFA Model: Available in recessed, smooth, or embossed diamond patterns, with panels made of 1/4" 6061-T5 aluminum and frames of 6063-T5 extruded aluminum, secured with stainless steel screws.
  • KFD Model: Suitable for concrete applications, available in standard (KFD-SD) and heavy-duty (KFD-HD) versions, featuring aluminum extrusion frames, stainless steel hardware, and optional watertight construction. Standard sizes range from 24x24 to 72x48 inches.
Roof Hatches:
  • Available in aluminum (KRHA) and galvanized (KRHG) versions, featuring a 12" high curb, compression spring-assisted cover, and zinc or cadmium-plated hardware. Standard sizes range from 2'0"x3' to 2'6"x8'.
Locking Devices:
  • Standard locking devices include screwdriver-operated cam latches and keyed paddle latches for fire-rated doors, with various lock options available, including cylinder locks, detention locks, and compression latches.
Specialty Items: Custom sizes and modifications are available upon request.
Contact Information: Karp Associates, Inc., 54-54 43rd Street, PO Box 780005, Maspeth, NY 11378. Phone: 718.784.2105, 800.888.4212. Fax: 718.784.9169. Website: www.karpinc.com
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Catalog excerpts

Access Door-2

Why Choose Karp Associates ? Karp Associates, Inc., founded in 1956 at its present location in Maspeth, Queens, actually has roots dating back to 1925 when Karp Metal Products was founded in a small garage in Brooklyn, NY. The original plant in Maspeth was only 5,000 square feet. Expansions in 1958, 1963, 1989 and 1998 grew the plant to its current size of 44,000 square feet. During the late fifties and early sixties, the manufacture and sale of access doors was a "job shop" effort. In the late sixties Karp's President, recognized the need to automate and expand the production of access doors...

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Access Door-3

Environmental Awareness Policy Karp Associates, Inc. is committed to protecting our environment, and realizes that minimizing the environmental impact of our manufacturing processes is critical to the future of our planet. Karp fabricates all access doors with a minimum of 35% post consumer and a minimum of 35% post industrial recycled steel. All scrap steel materials accumulated from the fabrication process are recycled again. Karp finishes all of its access doors with a high quality, durable, rust resistant powder paint finish that is EPA approved. Karp's powder paint contains no Volatile Organic...

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Access Door-4

Economical Access Doors DSB-214SM HA Plastic Panel (w/removable-hinged door) The Handi-Access plastic door is suitable for all surfaces and can be installed easily by applying glue or caulking adhesive to the back of the frame and pressing into place. Specifications Access doors shall be type HA. • Door and frame shall be constructed from 1⁄8" high impact styrene plastic. • Door shall have pivot hinge enabling door panel to be hinged or removable. • Door panel shall be held closed with a snap friction catch and opened without special tools. • Finish shall be white lightly textured exposed surface...

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Access Door-5

Economical Access Doors ME PF The ME door provides an economical, superior quality and aesthetically pleasing solution for new construction or remodeling. The frame, return and extended door stop are one piece construction resulting in a maintenance free and durable door. The Press-Fit door is a unique lightweight door that installs easily by bending the tabs on the return back to grip the drywall. The frame, return and doorstop are one-piece construction with a beveled frame resulting in an attractive finished look. Specifications Specifications Access doors shall be type PF • Trim, return and...

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Access Door-6

Insulated Exterior Access Door MX Karp engineered its MX Insulated Exterior Access Door to withstand years of exposure to severe outdoor elements. This high-quality, galvanized steel door comes with a stainless steel hinge. The combination of these components with Karp’s electrostatic rust-inhibitive powder finish provides two durable protective layers. To further weatherproof the door, Karp arc-welds and grounds smooth the corners of the trim and pan, which with the addition of closed cell neoprene gasket insures a watertight seal between the door and frame. Finally, the door includes Styrofoam...

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Access Door-7

Glass Fiber Reinforced Gypsum Ceiling Access Door Karp's new FG glass fiber reinforced gypsum access doors blend seamlessly into drywall ceilings, providing unobstructed access and satisfying upscale design installation requirements. • A Great Commercial Solution • Meets Design Needs for Hospitality f—DOOR SIZE (SEE LEGEND)—- DROP-IN DOOR SINGLE STUB TAPE JOINT [FILL. SAND S. FINISH) Drop-in Access Panel - Drop-in Access Panel - Side View (Single/Double stud installation) Door Size Ceiling Opening Size

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Access Door-8

Universal Access Doors For All Surfaces DSC-214M Access Doors For Drywall Installations KDW The DSC-214M is a distinctly superior door for new installations or for remodeling. The exposed flange adds rigidity to the unit and perfectly conceals the rough wall opening. Flexible anchor straps can be provided for installation within masonry openings. The KDW has a textured frame and bead so drywall joint compound can be applied in sufficient thickness to conceal the flange. Prepunched holes in the flange facilitate fastening the flange to framing members with drywall screws. Specifications Specifications...

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Access Door-9

Access Doors For Drywall Installations RDW RDWPD The face of the door on the RDW is recessed to receive a panel of drywall to provide a dry wall finish on the door to match the texture of surrounding drywall. The door frame includes a drywall bead so that drywall cement can be applied to conceal the flange. The face of the door on the RDWPD contains a factory installed 1/2” drywall to match the texture of the surrounding drywall. The door frame shall include a drywall bead so that drywall cement can be applied to conceal the flange. The RDWPD is the perfect solution when concealing the access...

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Access Door-10

Insulated Fire Rated Access Doors for Walls & Ceilings KRP-150FR KRP-350FR The KRP-150FR is insulated and rated by Underwriters Laboratories for 1.5 hour “B” label in walls, and may be used in a 2 hour fire rated wall assembly. Additionally, Warnock Hersey rates the KRP-150FR for 3 hours in ceilings. The KRP-350FR is insulated and rated by Underwriters Laboratories for 1.5 hour “B” label in walls, and may be used in a 2 hour fire rated wall assembly. Additionally, Warnock Hersey rates the KRP-350FR for 3 hours in ceilings. Specifications The KRP-350FR has a textured frame and bead so drywall...

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Access Door-11

Non–Insulated Fire Rated Access Doors for Walls Only KRP-250FR KRP-450FR The KRP-250 is non-insulated and rated by Underwriters Laboratories for 1.5 hour “B” label in walls, and may be used in a 2 hour fire rated wall assembly. Specifications Access doors shall be type KRP-250FR • Frame and trim shall be 16 gauge steel with corners welded and ground smooth; trim 1” wide. • Door shall be 16 gauge steel and open to 175°, be self-latching with automatic closer and interior latch release. • Hinge shall be continuous piano hinge. • Latches shall be spring loaded sliding bolt type keyed paddle latch,...

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All KARP Associates, Inc. catalogs and technical brochures

  1. DSB-123SD-MS

    1  Page

  2. GFRG

    1  Page

  3. KRP-450FR

    1  Page

  4. KRP-250FR

    1  Page

  5. KRHG

    1  Page

  6. KAD

    1  Page

  7. MXPL

    1  Page

  8. MX

    1  Page

  9. KRVB

    1  Page

  10. KSMB

    1  Page

  11. KSTE

    1  Page

  12. KCD

    1  Page

  13. KHD

    1  Page

  14. KATR

    1  Page

  15. KSTC

    1  Page

  16. KSTDW

    1  Page

  17. KRP-350FR

    1  Page

  18. KRP-150FR

    1  Page

  19. RDW

    1  Page

  20. RDWPD

    1  Page

  21. DSC-210PL

    1  Page

  22. KDW

    1  Page

  23. MC

    1  Page

  24. PF

    1  Page

  25. DSC-214PL

    1  Page

  26. HA

    1  Page

  27. DSC-214M

    1  Page

*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.