MAKE SURE TO READ ALL INSTRUCTIONS BEFORE INSTALLATION!!!
Beautiful hardwood floors are a product of nature and therefore, include natural variations. Stoehr floors are manufactured in accordance with accepted industry standards which permit a defect tolerance not to exceed 5%. The Installer/Owner of Stoehr products has final inspection responsibility as to grade and quality. He/she must use reasonable selectivity and hold out or cut off pieces with glaring defects, whatever the cause. Use of stain or putty stick for defect correction during installation is an industry accepted procedure. 5% must be added to actual square footage needed as allowance for cutting waste and allowable manufacturing defects. Should an individual piece be doubtful as to grade, or quality, the installer should not use the piece. Stoehr Flooring assumes no liability for manufacturing defects that are identified after installation.
DELIVERY, STORAGE, AND HANDLING
Do not deliver material during inclement weather conditions. Handle and unload with care. Store in a dry place, being sure to provide at least a 4-inch air space under bundles which are stored over on-grade concrete floors, flooring shall not be delivered until the building has been closed in with windows and doors in place and until cement work, plastering and all other materials are thoroughly dry. Plywood subfloors should be dry with no more than 14% moisture content and concrete should be at least 60 days old. Environmental conditions should be controlled to the anticipated occupied conditions.
You will need safety glasses, NIOSH –designated dust mask, wood moisture meter, concrete moisture meter if installing over concrete, table saw, circular saw, jigsaw, chalk line, tape measure, pencil, hammer, utility knife, drill, 1/16” drill bit, nailset and 7d flooring nails or equivalent. For ease of installation Stoehr recommends the Primatech Model 300 and 330, Primatech Model 200 Pneumatic Nailers, and the Powernail® Model 45 with 8-25 Adaptor Plate, Model 45R with 8-25 Adaptor Plate, or Model 445 pneumatic nailer. A Stanley-Bostitch MIIIFS Flooring Stapler is also acceptable. A non-marring white tip mallet should be used when installing flooring.
3/4” Monogram XL Continuous Strip is for nail-down installation only over plywood/OSB subfloors. In pier and beam construction it is necessary to have a board or plywood/OSB subfloor over joists. Do not nail over particle board or similar products. Before starting your installation, be sure the subfloors meet the following requirements:
JOISTS – APA rated CDX Plywood/OSB over joists (16” O.C.) should be a minimum of 3/4” thick T&G exterior grade. The 4’ x 8’ sheets should be laid with the direction of the surface grain at right angles to joist direction. Offset the plywood end joints every 4 ft. and be sure to leave a 1/8” gap between sheets. Nail every 6” along each joist using 10d common nails, at least ¼ crown 18ga staple or equivalent fasteners. Penetration into the underlying material should be at least 1-1/2”
CONCRETE – One successful method of installing 3/4” Monogram XL Continuous Strip flooring on concrete that is on/above grade, is to provide a ¾” Plywood/OSB nailing surface over at least 4 mil polyethylene film. Your poly-film should be laid loosely over the entire floor with edges lapped 4” and lapped 4” up the wall (Fig. 1). Next, lay out 3/4” x 4’ x 8’ sheets of exterior
grade APA rated CDX plywood/OSB on a diagonal to the direction to the finished flooring with 1/4” gaps between sheets and with your end joints staggered every 4 ft. Anchor the subfloor with powder-actuated or hammer-driven concrete anchors. Use a minimum of 18 fasteners per panel, 3 inches from the perimeter, 3 rows of 6, evenly spaced, starting at one end of the panel and working toward the opposite edge to be sure of flattening out the plywood and holding it securely.
- Never install 3/4” flooring over concrete which has cured for less than 60 days, has an In-Slab RH that exceeds 80% (ASTM F 2170-02) or over concrete that may experience high moisture conditions.
- Always check all subfloors for levelness. Any imperfections that exceed 3/16” should be corrected.
- All subfloors must be structurally sound, free of all foreign materials.
- If adhering the flooring directly to concrete, follow adhesive manufactures instructions and read adhesive manufactures warranty carefully. Stoehr Flooring is not responsible for any adhesive related issues.
Stoehr ¾” flooring is crafted of the finest hardwoods available. However, we would like to point out that all wood naturally expands when exposed to moisture and even our high quality kiln-dried products will expand when exposed to unusually high moisture conditions. Due to the nature of wood, a minimum 3/4” space must be provided along the wall that is parallel to the direction of the hardwood flooring to allow for expansion. In regions that may experience high humidity, additional intermediate allowance for expansion may be required. Do not install below grade (no basements) or over any subfloor with an existing moisture problem.
Look for and correct any cause of excess moisture, such as moisture in the basement, plumbing leaks, excessive condensation on water pipes, poorly fitted doors or windows, wet walls/foundations or ‘green” lumber. In crawlspace homes it is recommended that you spread at minimum 6 mil polyethylene ground below your subfloor and adequate ventilation is provided.
Proper air circulation is important to prevent moisture build-up. In crawlspace homes at least two vents on opposite walls should be left open year round with the combined size of the openings being no less than 1.5% of the square footage of the first floor.
As part of your subfloor preparation remove any existing base, shoe mold or doorway thresholds. These items can be replaced after installation to cover any unattractive cut edges. All door casings should be undercut or notched out to avoid difficult trim cuts. This can be easily done with a jamb saw or by laying down pieces of flooring on your subfloor as a depth guide for your handsaw (Fig. 2).
GENERAL INSTALLATION RULES:
- Your Monogram XL® Continuous Strip® should be delivered to the job site at least 72 hours before installation. The jobsite should be controlled to the expected living conditions. The bundles should be opened up and the heating or air conditioning turned on so the flooring can acclimate to the conditions under which it will remain after installation. The wood moisture content of the joists, subfloor and flooring should be mid range of the anticipated high/low for the geographical region.
- Test wood sub floors and wood flooring for moisture content using a pin-type moisture meter. The moisture content of the sub floor should not exceed 12%. The strip flooring generally will be installed between 6%-10% moisture content, depending on geographical region The moisture content of the strip flooring should be within 3% of the sub floor moisture content. Failure to test for proper moisture content of the wood flooring and sub floor can result in cupping and/or other problems related to or associated with moisture, problems associated with moisture are not covered manufacturer’s warranty. Always keep a record of concrete and wood (subfloor & flooring) moisture readings, environmental conditions and construction conditions and schedules.
- Use Laminated Red Rosin or 15 lb felt as an underlayment between the flooring and sub-floor in order to provide some moisture resistance as well as to reduce squeaking as the floor contracts and expands.
- Your Monogram XL® Continuous Strip® flooring should be installed at right angles to your joists. If your installation requires the flooring to lay parallel (or less than 45° toward parallel) to the joists, blocking must be used 24” O.C. between the joists or an additional layer of APA rated ½” plywood/OSB. Fasten this additional layer 6” oc around the perimeter and 12”oc in the field.
- The flooring requires a 3/4” expansion void between the first and last rows of strips and the walls, and at all vertical obstructions within the room. Note: In climates with extreme humidity or areas with excess soil moisture (coastal areas, waterfront sites, etc.) consider including expansion space within the floor (as well as at the wall lines) by spacing in joints between strips about every 12”- 15”. This is easily done with strips of 1/32” sheet metal, thin metal washers, etc. placed between the rows of flooring before nailing tight. Once this row and the following 5 are nailed, the washers can be pulled out. Extended acclimation time is also recommended.
- Because of the natural color and grain variation in hardwood flooring from piece to piece, it is important to work out of three or four bundles at a time to assure uniform blending. The installer is the final inspector and any materials considered inconsistent with the majority of the flooring should not be installed.
- The proper nail spacing (by hand or by machine)
Strip flooring 2 1/4” to 4” widths – a nailing pattern of 10”-12″ between nails or staples is required with a maximum of 2″ from the ends of the boards.Plank flooring 5″ to 7″ widths – a nailing pattern of no more than 8″ between nails or staples is required with a maximum of 2″ from the ends of the boards. In addition, the rosin paper or felt paper must be eliminated and replaced with the use of wood compatible construction adhesive. Apply the adhesive in a serpentine pattern from end to end on the underside of each flooring board as shown below.NOTE: A general rule of thumb is to nail more often on a wider board.IMPORTANT: Each Monogram XL® Continuous Strip® flooring board is manufactured to an average length of 78”. Each board can consist up to 4 individual pieces that have been seamed together in a special manufacturing process. These internal seams do not require a nail on each side as required with natural end joints. No matter the length of the board, it should have at least 2 nails, 1 on each end, in addition to the recommended nailing schedule.
- For machine nailing over plywood-on-joists use 2” or 1 ¾” cleats or staples in your nailing gun. For machine nailing over plywood-on-concrete use a 1-3/4” cleat or staple in your nailing machine.
- Because of the walls being in the way, you will be forced to hand-nail the first few rows of strip and the last few rows of strip. Pre-drill you nail holes with a 1/16” drill bit to avoid splitting. Be sure to countersink all hand-driven nails. Countersink and putty all nails which are driven through the exposed face of the boards.
INSTALLING YOUR FLOOR:
- From your starting wall, measure out a distance equal to the width of the strip plus 1 inch in both corners. Snap a chalk line between these two points so you will have a guide to keep your first row of flooring absolutely straight.
- Line up your first row with the edges of the tongue on the chalk line and the groove side ¾” away from the wall.
- Because of the similar length of each piece of Monogram XL® Continuous Strip® it is important to create a random pattern at the beginning of the installation, thereby creating a “stair step”. Starter boards should vary in length at least 12”. Then, when the end of the row is reached, your final cuts are used to start the next rows. Maintain a stagger to provide at least 6” between all natural end joints in adjacent rows throughout the floor. (Fig.3)
- Do not use a hammer or hard mallet when boards into place. Use only a soft tool such as the one which is supplied with a professional Tongue & Groove flooring fastener.Important: If installing factory-finished Monogram XL® Continuous Strip® extra care must be taken. Use a protective boot on the flooring nailer. If one is not available, place duct tape on the bottom of the flooring nailer. This will help protect the surface. Dot not drop or drag tools on surface. All nail holes and slight imperfections can be filled with pre-colored wood putty, available at most local building centers.Caution: Do not hit directly on the top edge of the flooring. Some mallets may cause damage.
- Pre-drill and face-nail the first row of strips using a 7d flooring nail or equivalent every 8” along the groove side. Counter sink these nails and fill with a high quality, stainable wood filler.
- Face nail the first row and next row of strips by hand. The next rows should blind nailed. Pre-drill your nail holes at a 45 degree angle down through the nailing groove on top of the tongue. Avoid bruising the wood by using a nail punch to drive the nails the last 1/4” into the tongue. Use 7d flooring nail or equivalent.
- Continue nailing by hand, or start using your floor nailing gun to lay consecutive rows of flooring. As you nail, be sure to pull the flooring tight together, both side and end joints. While slight bows in 3/4” solid flooring are normal, Stoehr’s unique manufacturing process helps minimizes the potential. Bowed boards can usually be pulled straight by use of a pry bar or by simply using additional nails as needed. If the bow is excessive either do not use it or cut it and use as a starter or end piece.
- The last few rows of flooring will have to be either blind-nailed or face-nailed by hand. The last row of strips may need to be ripped to the proper width to provide at least 3/4” room for expansion at the wall line.
- Putty any nail holes and small gaps using a high quality, stainable wood filler.
- Sand your installed floor using a professional flooring sander with course, medium and fine grade sand paper. Buff entire floor with extra fine grit, vacuum and tack clean of all dust and sanding fines. If desired, stain can be applied or the floor can be finished in a natural state. Follow the stain and/or finish manufacturer’s recommendations for proper sanding and finishing procedures. Disregard if factory finished Monogram XL® Continuous Strip® is installed.
- Install your thresholds, base moldings, and/or shoe moldings, attaching so not to obstruct your 3/4” expansion space.
- Maintenance should consist of dry tacking with a microfiber cloth to remove dust and dirt. Spills should be cleaned immediately. Walk off mats should be used by outside doorways. Bona Hardwood Floor cleaner or equivalent may be used for periodic cleaning. Follow manufacturers cleaning procedures.
- A small amount of flooring should be saved and stored in a dry location should the need arise for repair in the future.
Remember – Wood is a natural product that can vary in color, grain, and contains natural characteristics that varies from piece to piece and is to be expected. We do not warrant against these natural variations. If you are not satisfied with the flooring prior to installation, simply return the unused material to your dealer for a full replacement.
We urge you, as the final inspector to inspect for proper color, finish, style, and quality PRIOR to installation. Verify that the flooring is the correct material. Care should be taken at this time to remove or repair particular characteristics you do not desire. Manufacturer declines responsibility for any costs incurred when the flooring materials with visible defects have been installed. Please refer to Stoehr Flooring Manufactures Warranty for complete details.
For additional installation information please refer to the National Wood Flooring Association
The International Agency for Research on Cancer has classified wood dust as a nasal carcinogen. The sawing, sanding, and/ or machining of wood products can produce wood dust that can cause respiratory, eye, and skin irritations. Equipment should be equipped with a dust collector to reduce airborne wood dust. Wear an appropriate NIOSH designated dust mask to reduce exposure to airborne wood dust. Avoid contact with eyes and skin. In case of irritation, flush eyes or skin with water for at least 15 minutes. For further technical or installation questions or to request a Material Safety Data Sheet please call (877) 525-4632 and specify species of wood flooring.