Owner Manual

ManualsBrandsMohawk Flooring ManualsFlooringRandhurst Oak 3/4" Thick x 5" Wide x 43" Length Solid Hardwood Flooring

Installation Instructions

For 3/4" Mohawk Solid Hardwood oors

Suboor Preparation On or Above Grade Only

We recommend three types of subfloors: plywood or OSB, solid wood planks measuring 1" x 6" or larger, or 2" x 4" sleepers. Each subfloor type requires

separate installation guidelines.

Solid hardwood flooring may be installed on or above grade provided the subfloor is:

Clean: All construction debris, soil, mud and any other objects on or adhering to the floor must be scraped and swept away before installation.

Flat: Subfloor must be flat within 1/4" in a 10' radius.

Dry: Always test the subfloor with the appropriate moisture meter. Installation cannot continue until the subfloor moisture does not exceed 12% and the

subfloor and flooring moisture differ no more than 4%. For product 3" or wider, the subfloor and the flooring being installed should not differ more than 2%.

Sound: All damaged or swollen subflooring should be replaced. Check the floor for squeaks or loose components. Repair areas by adding fasteners or adhesive.

Wood Suboors

NOTE: As with many other interior finish products, modification of existing structural components may be required for a successful installation.

Wood suboors should be well nailed or secured with screws. Nails should be ring shank and screws need to be counter sunk. The wood suboor must be

structurally sound, without loose boards, vinyl or tile. If suboor panels are a single layer, less than 3/4" thick, add another single cross layer for strength and

stability, minimum 1/2" thick. Underlayment oor panels must be installed sealed side down. When used as a suboor, allow 1/8" (3 mm) expansion space

between each panel. If spacing is inadequate, cut in with a circular saw. Do not cut in expansion space on tongue and groove panels.

When installing parallel to the floor joists, it may be necessary to increase rigidity of the structural subfloor system by installing an additional

minimum of 1/2" (13 mm) approved underlayment floor panel.

Approved underlayment oor panels should meet or exceed the following:

• Plywood must be a minimum CDX grade (exposure1) and meet U.S. Voluntary Product Standard PS1 performance standard or Canadian performance

standard CAN/CSA 0325-0-92. The preferred thickness is 3/4" (19 mm) as a suboor, minimum 5/8" (16 mm) or 1/2" (13 mm) as a oor panel

underlayment.

• Oriented Strand Board (OSB) conforming to U.S. Voluntary Product Standard PS2 or Canadian performance standard CAN/CSA 0325-0- 92

construction sheathing. Check the underside of panel for codes. When used as a suboor, the panels must be tongue and groove and installed sealed

side down. Minimum thickness to be 23/32" (18 mm) thick when used as a suboor or 1/2" (13mm) as oor panel underlayment.

• Wafer board and chipboard conforming to U.S. Voluntary Product Standard PS2 or Canadian performance standard CAN/CSA 0325-0- 092. It must be

3/4" (19 mm) thick when used as a suboor and 1/2" (12.7 mm) thick when used as a oor panel underlayment.

Wood Suboor Moisture Check

NOTE: To increase reliability, moisture testing should be performed after the HVAC system has been in operation for minimum of 14 days. Excess moisture on

any flooring substrate, if not identified and corrected prior to installation, will cause floor covering failure. Warranties DO NOT cover products installed

over improperly prepared subfloors, substrates or environmental related deficiencies.

DO NOT INSTALL FLOORING IF MOISTURE TESTS RESULTS EXCEED RECOMMENDED LIMITS.