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Architectural Door Specifications

SECTION 08 14 00 – WOOD DOORS

PART 1 – GENERAL

1.1 SUMMARY

  1. Section Includes:
  • Lightweight, high-strength architectural doors utilizing SingCore technology.
  1. Related Sections:
  • Section 06 10 00 – Rough Carpentry: Wood framing.
  • Section 08 71 00 – Door Hardware: Hinges, locks, and accessories.
  • Section 09 91 00 – Painting: Finishing of door surfaces.

1.2 SUBMITTALS

  1. Product Data:
  • Manufacturer’s specifications and installation instructions for SingCore doors.
  1. Shop Drawings:
  • Include door dimensions, core type, face material, edge construction, and hardware preparation.
  1. Warranty:
  • 50 year warranty

1.3 QUALITY ASSURANCE

  1. Manufacturer Qualifications:
  • SingCore patented warp free door slab
  1. Performance Standards:
  • Comply with ANSI/WDMA I.S.1A for architectural wood doors.
  • Meet specified tolerances for flatness, strength, and weight.

1.4 DELIVERY, STORAGE, AND HANDLING

  1. Deliver doors wrapped or crated to protect against damage. B. Store doors in a clean, dry area, lying flat and supported at regular intervals.

1.5 WARRANTY

  1. Manufacturer’s Warranty:
  • Provide a 50-year structural warranty against warping, delamination, or core failure.

PART 2 – PRODUCTS

2.1 MANUFACTURER

  1. Approved Manufacturer:
  • SingCore, Inc.
  • Address:

1134 N Summit Rd.

McCleary, WA 98557

  • Contact-Kate Miller-sales@singcore.com-509-557-0183
  • Website: www.singcore.com

2.2 MATERIALS

  1. Door Core:
  • Patented SingCore core, featuring:
    • High-strength patented core reinforced with rigid torsion box.
    • Insulating foam for thermal and acoustic properties.
    • Lightweight and warp-resistant construction.
  1. Face Material:
  • Options: Depends on final finish (please reach out to SingCore for assistance)
  1. Edge Construction:
  • Solid wood edges or other materials as required to accommodate hardware preparation.
  1. Thickness:
  • Dependent on size and finish

2.3 PERFORMANCE REQUIREMENTS

  1. Strength and Stability:
  • Core compression strength: Minimum 660 PSI.

PART 3 – EXECUTION

3.1 EXAMINATION

  1. Verify that opening dimensions are correct and plumb before door installation.

3.2 INSTALLATION

  1. Install doors in accordance with manufacturer’s instructions and approved shop drawings. B. Fit doors accurately in frames with uniform clearance and alignment. C. Prepare and reinforce doors for hardware as specified.

3.3 FIELD FINISHING

  1. Finish doors in accordance with Section 09 91 00 – Painting. B. Sand surfaces lightly and clean thoroughly before applying finish.

3.4 ADJUSTING AND CLEANING

  1. Adjust hardware for proper function and operation. B. Clean doors using methods recommended by the manufacturer.

 

 

Receiving Instructions and Maintenance

Receiving Your Shipment

Inspect Before the Driver Leaves

  • Photograph and document any visible damage to the crate beforethe driver leaves
    • All damage must be noted on the driver’s copy of the BOLfor insurance purposes
    • Photograph the driver-notated BOL before the driver departs

Failure to document damage at delivery may void freight claims.

Delivery Planning and Unloading

  • If you do not have a dock or forklift, arrange a team for hand unloading in advance
    • The freight carrier will contact you when the crate arrives at the local hub to schedule delivery
    • Be prepared during the scheduled delivery window
    • Delays may result in storage charges from the carrier

Arrival and Storage of Sing Products

Upon Arrival

  • Sing products are delivered unfinished
    • Offloading may require a dock or forklift
    • Additional millwork or door shop work is required before the product is retail-ready

Temporary Appearance of Warp

  • When multiple door blanks are shipped stacked or side by side, exterior pieces may appear warped
    • This is normal and does notindicate a defective product
    • Proper acclimatization will restore the panel to true flat condition

Acclimatization Procedure

  • Stand the door on its long edge
    • Keep it at least 12″ away from walls or other surfaces
    • Allow up to 72 hours for acclimatization
    • Re-measure after acclimatization
    • If the door does not return to true flat, document and contact Sing Core

Proper Storage

  • Store doors vertically at all times
    • Do not lean doors against walls
    • Store in a clean, dry, climate-controlled environment

If doors must be stored stacked
• Wrap in plastic
• Place plywood sheets underneath and on top of the stack
• This helps maintain even acclimatization

Jobsite Conditions

  • Deliver doors only after plaster, concrete, and drywall mud have fully cured
    • Do not store doors in damp basements or uncontrolled environments
    • Moisture exposure will void the warranty
    • Unequal moisture on opposite sides of a panel may cause warping

Fabrication

Safety

  • Wear protective eyewear and a filter mask when cutting
    • Position panels so saw blades enter from the exterior face first to prevent chipping

Blocking and Machining

  • Blocking locations are marked in pencil
    • Re-mark blocking if trimmed or sanded away
    • All drilled holes and cutouts must be filled and sealed with an approved sealer

Failure to seal machined areas may void the warranty.

Finishing Requirements

General Requirements

  • All six sides of the door must be fully sealed
    • Includes top and bottom edges
    • Use a high-quality finish rated for at least 15 years
    • Primer or stain alone is notsufficient

Surface Preparation

  • Sand the entire door surface with fine sandpaper before finishing
    • Remove handling marks and oils

Timing

  • After hardware fitting, apply a sealer or first finish coat promptly
    • The sooner finishing begins after acclimatization, the better the door will perform
    • Complete the finishing process without long interruptions

Finish Quality

  • Variations in gloss, texture, or appearance caused by field finishing are not warrantable
    • Consult your finish supplier for proper techniques
    • Finishing should be performed or overseen by a professional millwork company with at least 5 years of experience

Sun Exposure and Color

  • Avoid dark stains or paints on doors exposed to direct sunlight
    • Black or very dark exterior doors exposed to sunlight are not covered under warranty

Exterior Overhang Requirement

All exterior doors must have a sufficient overhang.

Minimum requirements
• Overhang depth must equal half the distance from the bottom of the door to the underside of the overhang
• Overhang width must extend half of that same distance beyond each side of the door

This protects the door from weather exposure and is required for warranty eligibility.

Warranty-Critical Notes

  • Doors must be protected from excessive heat, dryness, humidity, moisture, and direct sunlight
    • Balanced skins are required to maintain warranty
    • All finishing plans must be discussed with Sing Core in advance
    • Mirrors, tile, or similar applied materials will void the warranty
    • Only skins applied by Sing Square Log Home Inc. are covered
    • Skins thicker than 1/8″ require prior written approval
    • Machining of face grooves, reveals, or decorative cuts voids the warranty

Customers are responsible for notifying Sing Square Log Home Inc. in writing of all finishes and skins applied.

Maintenance

  • Exterior finishes deteriorate over time
    • Inspect exterior doors at least once per year
    • Refinish immediately if deterioration is visible
    • Refinish all six sidesof the door
    • Keep inspection and refinishing records to maintain warranty