ALL-WOOD SYSTEM
CAD* | WORD | PDF | WARRANTY | ENVIRONMENT

When a padded sleeper system needs to be replaced, choose Horner's All Wood Flooring System. All Wood requires the same slab depression as a padded sleeper system, eliminating the need for any changes in floor height at doorways or bleachers.

The All Wood System is a true all wood flooring design. Wood subfloor construction gives the system uniform resiliency and excellent shock absorption, reducing leg fatigue. The system consists of northern hard maple flooring over a two-layer subfloor. The two 1" x 6" (25mm x 152mm) (nominal) subfloor layers cross at angles, providing a criss cross air flow for maximum ventilation and a scissors action to retard movement of the flooring components.

* - Because of recent changes in some web browsers, clicking on a CAD link may result in the browser opening up the file and reading it as text instead of a CAD image. If this happens, simply click on the browser's back button, right click on the CAD button for the desired system and select the Save Target As option, save the file to your computer, and then open it directly with your CAD software.

PART 1 GENERAL

1.1 DESCRIPTION

  1. This document specifies a wood strip gymnasium floor system consisting, in general, of wood subflooring, maple flooring, vapor retarder, resilient underlayment, sanding, sealers, finishes, game lines and wall base.
  2. The general contractor shall provide a concrete slab, smooth troweled and level to a tolerance of 1/8" (3mm) in 10'0" (3m) radius, subject to the approval of the wood flooring contractor. LABOR AND MATERIALS NECESSARY TO PUT THE CONCRETE SLAB IN ACCEPTABLE CONDITION (HIGH AREAS GROUND DOWN AND LOW AREAS FILLED WITH APPROVED LEVELING COMPOUNDS) SHALL BE THE RESPONSIBILITY OF THE GENERAL CONTRACTOR.
    1. Concrete slab depression shall be:
      1. 2 ½" (64mm) for 25/32" (20mm) thick flooring.
      2. 2 ¾" (70mm) for 33/32" (26mm) thick flooring.
    2. With a plywood subfloor, the slab depression shall be:
      1. 2" (51mm) for 25/32" (20mm) thick flooring.
      2. 2¼" (57mm) for 33/32" (26mm) thick flooring.
    3. With an OSB subfloor, the slab depression shall be:
      1. 1 7/8" (48mm) for 25/32" (20mm) thick flooring.
      2. 2 1/8" (54mm)for 33/3" (26mm) thick flooring.
  3. Concrete subfloors shall have an adequate vapor retarder beneath and at the perimeter of the slab.

1.2 QUALITY ASSURANCE

  1. Supplier Qualifications
    1. Supplier of wood flooring shall be Horner Flooring Company.
  2. Installer Qualifications
    1. Flooring contractor shall be a firm experienced in installing maple flooring.
  3. Flooring shall be stored on the premises a minimum of seven (7) days before installation commences, or as required for acclimation. Final determination as to acclimation will be made by the flooring contractor.
  4. All flooring bundles should be broken and loosely piled to acclimate the flooring to moisture conditions in the building.

1.3 WORKING CONDITIONS

  1. The floor system shall not be delivered or installed until all masonry, plastering, tile work and all overhead mechanical trades are complete and building is enclosed and weathertight.
  2. Permanent heat, light and ventilation shall be installed and operating during and after installation, maintaining a temperature range of 55°F (13°C) to 75°F (24°C) and a relative humidity range of 35% to 50%.

1.4 WARRANTY

  1. Horner Flooring Company hereby warrants the ALL WOOD SYSTEM flooring materials to be free from manufacturing defects for a period of one year from the date of substantial completion of the floor.

PART 2 PRODUCTS

2.1 MATERIALS

  1. Flooring shall be Horner 25/32" (20mm) or 33/32" (26mm) thick x 2 ¼" (57mm) or 1 ½" (38mm) wide First, Second and Better, Third and Better or Third Grade, continuous tongue and groove and end-matched MFMA Northern Hard Maple, grade marked and stamped as manufactured by Horner Flooring Company.

    OPTION: Horner Long Life™ flooring if so specified.

  2. Vapor retarder shall be 6 mil polyethylene.
  3. Subfloor shall be Horner 1" x 6" (25mm x 152mm) (nominal) Second and Better Gym Grade Hemlock, No. 2 Spruce, Fir, or Pine S2S to ¾" x 6" (19mm x 152mm) x RL (2 layers of 15/32" (12mm). Rated sheathing, exposure 1, plywood, or 7/16" (11mm) OSB may be used in place of 1" x 6" (25mm x 152mm)).
  4. Horner Foam: ¼" (6mm) multi cellular, closed cell plastic foam. Density: 2.0 PCF.
  5. Underlayment tape shall be 2" (51mm) duct tape.
  6. Fasteners
    1. Subfloor fasteners shall be 1¼" (32mm) nails or staples (1" (25mm) with plywood or OSB).
    2. Flooring fasteners shall be 2" (51mm) barbed cleats or 15 gauge (1.8mm) coated staples.

      OPTION: If Horner Long Life™ is specified, use 2" (51mm) 15 gauge (1.8mm) staples only.

  7. Wall Base shall be 3" x 4" (76mm x 102mm) Vent Cove heavy duty molded, vented vinyl cove base with pre molded outside corners supplied by Horner Flooring Company. Specify color: black or brown.
  8. Finish materials shall be as specified by architect selected from the latest listing provided by the MFMA and shall be applied according to manufacturer's instructions.

PART 3 EXECUTION

3.1 INSPECTION

  1. Inspect concrete slab for proper tolerance and dryness and report any discrepancies to the general contractor for correction.
  2. The concrete slab shall be cleaned of all debris so flooring contractor will have adequate access to work surface.
  3. All work required to put the concrete slab in an acceptable condition shall be the responsibility of the general contractor.

3.2 INSTALLATION

  1. Cover concrete with 6 mil polyethylene, sealing, and lapping joints a minimum of 4" (102mm).
  2. With 1" x 6" (25mm x 152mm) (nominal) subfloor:
    1. Install first layer of 1" x 6" (25mm x 152mm) subfloor across the long dimension of the room at a 45o angle. The ends of the 1" x 6" (25mm x 152mm) shall be butted, leaving a ¼" (6mm) space and the sides spaced 2" (51mm) between adjoining 1" x 6" (25mm x 152mm). Provide 2" (51mm) expansion voids at perimeter and all vertical obstructions.
    2. The second layer of 1" x 6" (25mm x 152mm) subfloor shall be laid out 90o to the bottom layer, such that no end joints shall fall over any end joints of the first layer. The ends of the second layer 1" x 6" (25mm x 152mm) shall also be butted, leaving a ¼" (6mm) space, and the sides spaced 1" (25mm) between adjoining 1" x 6" (25mm x 152mm). This layer shall be secured to the first layer with nails or staples at each intersection.
    3. A single 1" x 6" (25mm x 152mm) border strip shall be installed as part of the second subfloor layer, at right angles to the finish flooring at floor perimeter.
  3. With All-Wood System II option:
    1. Install subfloor as above, but with lower 1" x 6" (25mm x 152mm) (nominal) layer spaced 12" (305mm) o.c., and upper layer spaced 8" (203mm) o.c.
  4. With 15/32" (12mm) sheathing plywood or 7/16" (11mm) OSB option:
    1. Install two layers of either 15/32" (12mm) sheathing plywood or 7/16" (11mm) OSB so that each layer is 45o to the long dimension of the floor and 90o to the other layer, leaving a ¼" (6mm) space between adjoining sheets and a 2" (51mm) perimeter expansion void.
  5. Install finish flooring parallel with main playing court by power nailing or stapling approximately 12" (305mm) o.c.
    1. Space joints between flooring strips to allow for intermediate expansion, in accordance with local humidity conditions.
    2. Provide 2" (51mm) expansion voids at the perimeter and at all vertical obstructions.

3.3 FLOOR SANDING

  1. Machine sand with coarse, medium and fine paper to a smooth, even and uniform surface.
  2. Remove sanding dust from entire surface by tack or vacuum.
  3. Refer to MFMA sanding and finishing guide for procedures.

3.4 FINISHING

  1. Inspect entire area of floor to insure that surface is acceptable for finishing, completely free from sanding dust and perfectly clean.
  2. Apply approved urethane seal and finish per manufacturer's instructions.
    1. Apply two (2) coats of seal and two (2) coats of finish.
  3. Buff and clean floor between each coat.
  4. Paint game lines as shown on drawings, between seal and first coat of finish.
  5. Game line paint shall be compatible with finish.

3.5 BASE INSTALLATION

  1. Install Vent Cove base, mitering inside corners, and anchoring to walls with base cement or screws and anchors.

3.6 MAINTENANCE

  1. Upon completion of floor installation, the owner, attendants or individuals in charge and responsible for the upkeep of the building are to see that the care and maintenance instructions of the Horner or MFMA Care Card are followed.