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Installation Instructions
1/4", 3/8" & 1/2" Engineered Products for Staple-Down & Glue-Down
Methods
BRUCE
- Do not staple down Pecan, Maple, Wearmaster or Northern Birch Products
RECOMMENDED ADHESIVES: ConnectionTM PR+ • EqualizerTM
Urethane Adhesive
RECOMMENDED ADHESIVE REMOVER: EqualizerTM
Urethane Adhesive Remover
RECOMMENDED CLEANER: Dura-Luster® No-Wax Cleaner
OWNER/INSTALLER
RESPONSIBILITY
Beautiful hardwood floors are a product of nature and therefore, not
perfect. Our wood floors are manufactured in accordance with accepted industry
standards, which permit grading deficiencies not to exceed 5%. These
grading deficiencies may be of a manufacturing or natural type.
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The installer assumes all responsibility for final inspection of
product quality. This inspection of all flooring should be done before
installation. Carefully examine flooring for color, finish and quality before
installing it. If material is not acceptable, do not install it and contact the
seller immediately.
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Prior to installation of any hardwood-flooring product, the
installer must determine that the job-site environment and the sub surfaces
involved meet or exceed all applicable standards. Recommendations of the
construction and materials industries as well as local codes must be followed.
These instructions recommend that the construction and subfloor be dry, stiff
and flat.
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The manufacturer declines any responsibility for job failure
resulting from or associated with sub-surface, sub flooring or jobsite
environmental deficiencies.
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Prior to installation, the installer/owner has final inspection
responsibility as to grade, manufacture and factory finish. The installer must
use reasonable selectivity and hold out or cut off pieces with deficiencies,
whatever the cause.
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Use of stain, filler or putty stick for touch-up during
installation should be accepted as normal procedure.
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When flooring is ordered, 5% must be added to the actual square
footage needed for cutting and grading allowance.
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Should an individual piece be doubtful as to grade, manufacture
or factory finish, the installer should not use the piece.
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Use of appropriate products for correcting subfloor voids should
be accepted as a normal industry practice.
TOOLS & ACCESSORIES
NEEDED FOR ALL INSTALLATIONS
ALL INSTALLATIONS
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Broom
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3M 2090 Blue Mask Tape
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Tape Measure
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Hammer
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Chalk Line & Chalk
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Hand Saw or Jamb Saw
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Recommended Hardwood Flooring Cleaner
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Electric Power Saw
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Moisture Meter (wood, concrete or both)
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Eye Protection
ADD FOR GLUE-DOWN
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Recommended Adhesive & Adhesive Remover
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3/16”x 1/4”x 1/2”x 5/16” Trowel
ADD FOR STAPLE-DOWN
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Stanley-Bostitch 3297 or Senco SLS 20
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1”Staples (minimum)
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Compressor
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Nylon/Plastic Tapping Block
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In-Line Regulator
PRE-INSTALLATION PROCEDURES FOR JOB SITE INSPECTION
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The building should be closed in with all outside doors and
windows in place. All concrete, masonry, framing members, drywall, paint and
other “wet” work should be thoroughly dry. The wall coverings should be in
place and the painting completed except for the final coat on the base molding.
When possible, delay installation of base molding until flooring installation
is complete. Basements and crawl spaces must be dry and well ventilated.
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Exterior grading should be complete with surface drainage
offering a minimum drop of 3”in 10’to direct flow of water away from the
structure. All gutters and downspouts should be in place.
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Engineered flooring may be installed below, on or above grade
level. Do not install in full bathrooms.
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Crawl spaces must be a minimum of 24”(600 mm) from the ground to
underside of joists. A ground cover of 6-8 mil black polyethylene film is
essential as a vapor barrier with joints lapped six inches and taped. The crawl
space should have perimeter venting equal to a minimum of 1.5% of the crawl
space square footage. These vents should be properly located to foster cross
ventilation (see figure #1). Where necessary, local regulations prevail.
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Subfloor must be checked for moisture content using the
appropriate testing method.
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Permanent air conditioning and heating systems should be in
place and operational. The installation site should have a consistent room
temperature of 60-75° F and humidity of 35-55% for 14 days prior, during and
until occupied, to allow for proper acclimation.
STORAGE AND HANDLING
Handle and unload with care. Store in a dry place being sure to
provide at least a four-inch air space under cartons, which are stored upon
“on-grade” concrete floors. Flooring should not be delivered until the building
has been closed in with windows and doors in place and until cement work,
plastering and all other “wet” work is completed and dry.
Concrete should be at least
60 days old. Engineered flooring should be stored in the environment in which
it is expected to perform. Check adhesive label for storage limitations.
INSTALLATION APPLICATIONS
STAPLE-DOWN INSTALLATIONS
NOTE: SEE NON-RECOMMENDED PRODUCTS, IF ANY, IN HEADER.
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All engineered products up to 3 1/4”in width may be installed
with a properly selected stapler. Do not staple products that exceed 3 1/4” in
width. All 1/4” engineered products may be installed with a properly selected
stapler regardless of width.
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Make sure to properly adjust the stapler for proper product
thickness (see figure #2). This may include the use of an adapter on some
models. The flooring manufacturer is not responsible for damage caused by
fastening machines.
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Use minimum 1”staples recommended by the stapler manufacturer.
INSTALLATION USING
PNEUMATIC STAPLING MACHINES
NOTE: MINOR OCCASIONAL NOISES IN MECHANICALLY FASTENED FLOORS IS NOT
ABNORMAL DUE TO STRUCTURAL MOVEMENT CAUSED BY CHANGES IN ENVIRONMENTAL
CONDITIONS. FOLLOWING THESE INSTRUCTIONS CAN MINIMIZE THESE FACTORS BUT OFFER
NO GUARANTEE THAT THE FLOOR WILL NOT CREATE MINOR OCCASIONAL NOISES.
GENERAL INFORMATION FOR
STAPLED APPLICATIONS:
Improper pressure settings and failure to use proper adapters can
cause severe damage to the flooring. The correct adapter and air pressure
setting will properly set the staple in the nail pocket (figure #3). Low air
pressures may fail to properly set the staple and damage adjoining boards. Air
pressures set too high may cause damage to the tongue, preventing installation
of adjoining boards and cause blisters on the face of the flooring. Make
certain that the compressor has a regulator in-line with the air hose for
proper adjustment. Set pressure at 70 PSI to begin with and adjust until proper
staple setting occurs. USE A STAPLER DESIGNED FOR THE THICKNESS OF THE PRODUCT
BEING INSTALLED. Any water damaged, swollen or delaminated sub flooring
materials will not hold staples properly and must be repaired or replaced.
GLUE-DOWN INSTALLATIONS
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Use recommended adhesive (shown in header on page 1) and trowel
(figure #4) to get required spread rate and ridging height.
SUBFLOOR REQUIREMENTS MUST BE:
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CLEAN - Scrape, broom clean, and smooth. Free of wax, paint,
oil, sealers, adhesives, curing agents and other debris.
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LEVEL/FLAT - Within 3/16”in 10’and/or 1/8”in 6’.Sand high areas
or joints. If the floor is to be glued down, fill low areas (no more than 1/8”
at a time) with a cementitous leveling compound or milk additive latex patch of
3,000-PSI minimum compressive strength. Follow the instructions of the leveling
compound manufacturer. Ascertain that leveling compounds are completely cured
and DRY before beginning installation. When stapling the floor down, flatten
low spots with layers of 15# builders felt, plywood or shims (not leveling
compounds). Leveling materials must provide a structurally sound subfloor that
does not affect the holding power of the staple.
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STRUCTURALLY SOUND - Nail or screw any loose areas that squeak.
Replace any water-damaged, swollen or delaminated sub flooring or
underlayments. Avoid sub floors with excessive vertical movement.
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DRY - Check moisture content of the subfloor with the
appropriate moisture meter.
RECOMMENDED SUBFLOOR
SURFACES
GLUE-DOWN
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Concrete slabs
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Acoustic concrete
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Ceramic, terrazzo, slate and marble
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3/4”chip, wafer board and particleboard
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Acoustic cork underlayment
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PREFERRED:3/4”(19 mm) CDX grade plywood or 3/4”(23/32”) OSB PS2
rated underlayment, MINIMUM:5/8”CDX grade plywood
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Existing solid wood flooring
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Vinyl, resilient tile, cork flooring
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Metal
STAPLE-DOWN
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PREFERRED: 3/4”(19 mm) CDX grade plywood or 3/4”(23/32”) OSB PS2
rated underlayment, MINIMUM:5/8”CDX grade plywood
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Existing solid wood flooring
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Vinyl, resilient tile, cork flooring
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3/4”chip, wafer board, particleboard
CONCRETE SLABS
GLUE-DOWN
Engineered flooring can be glued directly to high compressive strength
concrete. Do not install over a concrete sealer. All concrete sub floors should
be tested for moisture content. Visual checks may not be reliable. Test several
areas, especially near exterior and plumbing walls. Acceptable test methods for
subfloor moisture content include:
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A 3% Phenolphthalein in Anhydrous alcohol solution. Chip the
concrete at least 1/4”deep (do not apply directly to the concrete surface) and
apply several drops of the solution to the chipped area. If any color change
occurs, further testing is required.
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Calcium Chloride test. The maximum moisture transfer must not
exceed 3 lbs/1000 square feet in 24 hours with this test. This test is
required in commercial applications.
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Tramex Concrete Moisture Encounter meter (figure #5).Moisture
readings should not exceed 4.5 on the upper scale. (Figure #5 shows an
unacceptable reading of over 4.5).
A “DRY”SLAB, AS DEFINED BY
THESE TESTS CAN BE WET AT OTHER TIMES OF THE YEAR.THESE TESTS DO NOT GUARANTEE
A DRY SLAB. ALL CONCRETE SLABS SHOULD HAVE A MINIMUM OF 6 MIL POLY FILM
MOISTURE BARRIER BETWEEN THE GROUND AND THE CONCRETE.
Moisture Barrier System: If
moisture is present, inexpensive sheet vinyl or “slip-sheet”(PVC) may be
installed. Use a premium grade, alkaline resistant adhesive and a full spread
application system to properly bond the vinyl to the subfloor. Follow the sheet
vinyl manufacturer instructions for installation procedures. A patch test may
be required as an adhesion test. Install several small areas (3’x 3’) and allow
the vinyl to set for 72 hours. Remove the vinyl; if the backing remains
attached to the concrete, the subfloor should be acceptable for sheet vinyl
installation.
STAPLE-DOWN
Install a suitable moisture retarder followed by a plywood sub floor
with a minimum thickness of 1/2”. The panels must be properly attached to the
sub floor using a minimum of one fastener per square foot and more if
necessary. Use pneumatic or powder actuated fasteners. Do not hand nail the
subfloor.
ACOUSTIC CONCRETE
(GLUE-DOWN ONLY)
Acoustic concrete normally contains large quantities of gypsum that
may inhibit the adhesive’s capability to properly bond. Acoustic concrete
must be primed with the concrete manufacturers recommended primer/surface
hardener. Always check for adequate adhesive bond.
WOOD SUBFLOORS & WOOD STRUCTURAL PANEL SUBFLOORS
Plywood: Must be APA grade rated sheathing or CDX minimum. Oriented Strand
Board (OSB):Must be PS2 rated installed sealed side down. Particleboard: Must
be a minimum 40-LB density, stamped underlayment grade and 3/4”thick.
STAPLE-DOWN OR GLUE-DOWN
Make sure existing floor or subfloor is dry and well nailed or screwed
down every 6”along each joist to avoid squeaking or popping before the floor is
installed. The wood subfloor must not exceed 13% moisture content. Measure
moisture content of both subfloor and wood flooring to determine proper
moisture content with a reliable wood moisture meter. The difference between
the moisture content of the wood subfloor and the wood flooring must not exceed
4%.
Optimum performance of
hardwood floor covering products occurs when there is little horizontal or
vertical movement of the subfloor. The MINIMUM subfloor recommendations
described above are for 19.2” O/C joist spacing with minimum recommended spans.
If the subfloor has excessive vertical movement (deflection) before
installation of the flooring it is likely it will do so after installation of
the flooring is complete. Deflection may cause the floor to become loose
creating a noisy floor or cause premature finish wear. Avoid installations over
sub floors that do not meet this minimum criterion. As flooring manufacturers
we are unable to evaluate each engineered system. Other spacing and spans as
well as their engineering methods are the responsibility of the builder,
engineer, architect or consumer who is better able to evaluate the expected
result based on site related performance.
All underlayment panels
should be spaced 1/8”apart to insure adequate expansion space or have the space
cut around the perimeter using a circular saw. T&G panels normally have
built in expansion; DO NOT cut around their perimeter. When installing over
existing wood floors parallel with the flooring or solid wood decking, it may
be necessary to install an additional layer of plywood to stabilize the
flooring or install the wood floor at right angles. Applicable standards and
recommendations of the construction and materials industries must be met or
exceeded.
RESILIENT TILE, RESILIENT
SHEET VINYL & CORK FLOORING (STAPLE-DOWN)
Make sure the vinyl or tile is full spread adhesive and well bonded to
the subfloor. Do not install over more than one layer, which does not exceed
1/8”in thickness over suitable subfloor. If vinyl or tiles are loose, crumbled,
or in poor condition, install an underlayment directly over the sheet vinyl
(linoleum) or vinyl tiles. NOTE: Some older type tiles become brittle with
age. Ascertain that the staple will penetrate these materials and that
breakage does not occur. Remove if necessary
GLUE-DOWN
IF THE TILES OR SHEET GOODS ARE WELL BONDED, CLEAN THE SURFACE THOROUGHLY WITH
A GOOD QUALITY HOUSEHOLD DETERGENT AND RINSE COMPLETELY. DE-GLOSS FLOORING AS
NECESSARY, (FIGURE #6) TO CREATE A GOOD ADHESIVE BOND USING AN ABRASIVE PAD. IF
VINYL APPEARS TO HAVE A COATING OF WAX OR OTHER MAINTENANCE MATERIALS IT MUST
BE REMOVED WITH THE APPROPRIATE FLOOR STRIPPER AND RINSED COMPLETELY. ALLOW
AMPLE DRYING TIME. (NOTE:DO NOT SAND ANY RESILIENT PRODUCTS FOR THEY MAY
CONTAIN ASBESTOS FIBERS,WHICH MAY BE HARMFUL.) DO NOT INSTALL OVER FLOORS THAT
EXCEED TWO LAYERS. CORK FLOORS MUST HAVE ALL SEALERS AND SURFACE TREATMENTS
REMOVED BEFORE INSTALLATION BEGINS. ALWAYS CHECK FOR ADEQUATE ADHESIVE BOND.
CERAMIC, TERRAZZO, SLATE
& MARBLE (GLUE-DOWN ONLY)
All grout joints and broken corners that exceed 3/16” must be filled
with a cementitous leveling compound mixed with Latex additive. The surface
should be cleaned and abraded to create a good bonding surface for the
adhesive. Loose tiles must be re-adhered to the subfloor or filled as above.
Remove all sealers and surface treatments. Always check for adequate adhesive
bond.
ACOUSTIC CORK
UNDERLAYMENT (GLUE-DOWN ONLY)
Engineered flooring can be glued directly over full-spread,
permanently bonded acoustic cork. The cork should have a density of no less
than 11.4 lb./cubic foot and no more than 13 lb./cubic foot. The cork, in
general, should be pure cork combined with a polyurethane binder.
Install cork in accordance with manufacturer’s recommendations. Always check
for adequate adhesive bond.
SUBFLOORS WITH RADIANT
HEAT
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System must be operational and heated for at least 7 days prior
to beginning the installation.
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Turn off heat and let subfloor cool down to room temperature 3-4
hours prior to starting the job.
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Radiant heated floors must be temperature controlled or
engineered for the R-rating of the floor-covering product installed upon them.
BEFORE installation begins, ascertain that the system is designed and
controlled for wood flooring. Failure to do so may cause excessive heat damage
and shrinkage. Install floor per the application instructions (staple or
glue-down). NOTE: Refer to radiant heat system manufacturer’s precautions for
nail down installation. Beware of stapling through radiant tubing or mesh.
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After installation, turn system back on immediately to its
normal room temperature setting. The subfloor surface must not exceed 85° F
throughout the life of the floor.
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All engineered products should be end-glued over radiant heat.
Apply a bead of good wood glue to the groove end then insert the tongue. Wipe
excess adhesive away immediately.
GENERAL INSTALLATION TIPS
NOTE: When installing UNFINISHED engineered flooring, allow a minimum
of 72 hours adhesive curing time before applying seals, stains and finishes to
unfinished flooring. Test the moisture content of the wood in accordance with
the stain/finish manufacturer’s recommendations.
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Floor should be installed from several cartons at the same time
to ensure good color and shade mixture.
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Be attentive to staggering the ends of boards in adjacent rows
at least 6”when possible (figure #7).This will help ensure a more favorable
overall appearance of the floor.
STEP 1: DOORWAY AND WALL
PREPARATION
Undercut door casings and jambs. Remove any existing base, shoe mold
or doorway thresholds. These items can be replaced after installation. All door
casings and jambs should be undercut to avoid difficult scribe cuts (figure
#8).
STEP 2:ESTABLISH A
STARTING POINT
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Installation parallel to the longest wall is recommended for
best visual effects, however, the floor should be installed perpendicular to
the flooring joists unless subfloor has been reinforced to reduce subfloor
sagging. Find appropriate subfloor from “Subfloor Type” section in this
instruction manual.
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Add 3/8”to the widest width of the product being installed to
allow for 1/4” expansion and the width of the tongue. For random and alternate
width products, use the widest plank for the first row.
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When possible, always begin layout or installation from an
outside wall, as these are normally the straightest.
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In at least two places 12”-16”from the corner, measure out equal
distance from the starting wall (figure #9) and snap a chalk line.
STAPLE-DOWN METHOD
NOTE: Installation of a moisture retardant may reduce movement of
flooring in areas with high subfloor moisture or excessive humidity.
STEP 3:INSTALLING FIRST
& SECOND ROWS
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Use the longest, straightest boards available for the first two
rows. Align tongue of first row on chalk line. The groove should be facing the
starting wall.Pre-drill 1/2”from back (groo ve) edge, 1-2”from each end, and at
6”inter vals when possible (figure #10). Fasten using 4 or 6d finishing nails.
Countersink the nails.
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Pre-drill and blind-nail at a 45° angle through the tongue of
the first row every 3-4”and 1-2”from the ends. Countersink nails to ensure
flush engagement of groove with the following row(s). Continue blind nailing
using this method with following rows until stapler can be used.
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End-joints of adjacent rows should be staggered a minimum of 6”
when possible to ensure a more favorable overall appearance (see figure #7).
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Beginning rows may be blind nailed where clearance allows using
a pneumatic brad nailer with 1”brads.
STEP 4:INSTALLING THE
FLOOR
Always use the recommended stapler for the specific product being
installed (see “Installation Applications”). Use minimum 1”recommended by the
stapler manufacturer spaced at 3-4”intervals and 1-2”from the ends.
IMPORTANT NOTE: All 3/8”-1/2”products over 3-1/4”wide are recommended for
glue-down installation only.
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Set compressor at 70 PSI. If tongue damage occurs, lower air
pressure (see figure #3).
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Fasten several sacrificial boards to the floor. At least two
boards, stapled side by side, must be used to indicate proper machine
adjustments. Check for surface damage, air pressure setting, tongue damage,
edge blistering etc. before proceeding. Make all adjustments and corrections
before installation begins. Once proper adjustments have been made, remove and
destroy the boards.
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The last 1-2 rows will need to be face-nailed when clearance
does not permit blind nailing with stapler or brad nailer. Pre-drill and
face-nail on the tongue side following the nailing pattern used for the first
row.
GLUE-DOWN METHOD
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Maximum adhesive working times: Urethane adhesive - 60 minutes;
Polymeric resin adhesive - 90 minutes
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Open times and curing times of ALL adhesives vary dependent upon
subfloor porosity, air movement, humidity and room temperature. Urethane
adhesive has a shortened work time in high humidity environments whereas
polymeric resin working time will be lengthened. In areas of low humidity open
time will be longer with urethane adhesives and shorter with polymeric resin
adhesives. Adjust the amount of adhesive spread accordingly. The adhesive
should not be applied if subfloor or room temperature is below 65° F (18.3° C).
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Spread sufficient amounts of recommended adhesive with the
recommended trowel (see figure #4) in an area that can be covered in 60-90
minutes. Polymeric resin adhesives may be rolled if desired. If desired, do so
every two hours and at the end of the day. If the urethane adhesive is to be
rolled do not do so until the adhesive has cured for 2 hours.
NOTE: Avoid installing from
the surface of the flooring. If necessary distribute weight using a kneeler
board.
STEP 3: SPREAD THE ADHESIVE
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Spread sufficient amount of recommended adhesive with a 3/16”x
1/4”x 1/2”x 5/16”trowel (see figure #4) in an area that can be covered in 60-90
minutes.
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Hold trowel at a minimum 45° angle (figure #11) firmly against
the subfloor to obtain a 50-60 sq.ft. per gallon spread rate. The trowel will
leave ridges of adhesive and very little adhesive between the ridges. This will
allow you to still see the chalk lines between the ridges and provide the
recommended spread rate. If the adhesive skins over and fails to transfer,
remove and spread new adhesive to achieve proper bonding to the subfloor.
WORKING TIME WILL VARY DEPENDING ON JOB SITE CONDITIONS.
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For additional application instructions, follow the
recommendations on the adhesive container.
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When not in use, keep the adhesive container tightly closed to
prevent thickening. Thickening will cause difficulty in spreading the adhesive.
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Proper ventilation within the room must be provided. An electric
fan is helpful.
STEP 4: INSTALLING THE
FLOOR
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Use the longest, straightest boards available for the first two
rows. The first row of planks should be installed with the edge of the groove
lined up on the chalk line. The tongue should be facing the starting wall. The
first row must be aligned and seated in the adhesive, as all additional rows
will be pushed back to this original row. Remove tongue to allow for expansion
space if necessary.
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When installing 5-ply products or products wider than 3 1/4”,
apply a bead of PVA wood glue to all of the end grooves prior to installing
into the adhesive.
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When installing pieces, engage the end-joint first as close to
side (long) tongue and groove as possible and then slide together tightly to
engage side (long) joint tongue and groove. To avoid adhesive bleed-through and
memory pullback, avoid sliding pieces through the adhesive as much as possible
when placing them in position.
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During the installation occasionally remove a piece of flooring
from the subfloor and inspect the back for proper adhesive transfer. Adequate
adhesive transfer is necessary to ensure sufficient holding strength. NOTE:
Clean adhesive from the surface of the floor frequently using the recommended
adhesive cleaner. Urethane adhesives become extremely difficult to remove when
cured. Do not use blue tape before adhesive is removed. Use clean towel,
changed frequently, to prevent haze and adhesive residue.
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Check for a tight fit between all edges and ends of each plank.
End-joints of adjacent rows should be staggered 6”when possible to ensure a
more favorable overall appearance (see figure #7).
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If necessary, nail a sacrificial row with 1”nails on the dry
side of your chalk line to help hold the first row in place.
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It may be necessary to align product with a cut-off piece of
scrap as shown (figure #12 - Keep scrap angle low to avoid edge damage).
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To eliminate minor shifting or gapping of product during
installation, use 3M 2090 Blue Mask Tape to hold the planks together. After
installation is complete, remove all the 3M 2090 Blue Mask Tape from surface of
newly installed flooring. Do not let tape remain on flooring longer than 24
hours. Avoid use of masking tape, which leaves an adhesive residue.
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Be sure not to spread adhesive too far ahead of your work area
(figure #13).
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Complete the installation using this same technique for the
remainder of the floor.
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Avoid heavy foot traffic on the floor for at least 24 hours.
Lift the furniture or fixtures back into place after 24 hours.
STAPLE-DOWN &
GLUE-DOWN METHODS
STEP 5:COMPLETE THE JOB
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Clean floor with the recommended wood flooring cleaner. (See
adhesive container for specific information)
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Re-install any transition pieces that may be needed, such as
Reducer Strips, T-moldings, or Thresholds. The products are available
pre-finished to blend with your flooring.
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Re-install all base and/or quarter round moldings . Nail
moldings into the wall, not the floor. Inspect the floor, filling all minor
gaps with the appropriate blended filler.
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If the floor is to be covered, use a breathable material such as
cardboard. Do not cover with plastic.
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Leave warranty and floor care information with the owner. Advise
them of the product name and code number of the flooring they purchased.
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To prevent surface damage avoid rolling heavy furniture and
appliances on the floor. Use plywood, hardboard or appliance lifts if
necessary.
MOLDINGS
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REDUCER STRIP: a teardrop shaped molding used around fireplaces,
doorways, as a room divider, or as a transition between wood flooring and
adjacent floor coverings that are less thick. Fasten down with adhesive, small
nails or double-faced tape.
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THRESHOLD: a molding undercut for use against sliding door
tracks, fireplaces, carpet, ceramic tile, or existing thresholds to allow for
expansion space and to provide a smooth transition in height difference. Fasten
to subfloor with adhesive and/or nails through the heel. Predrill nail holes to
prevent splitting.
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STAIR NOSING: a molding undercut for use as a stair landings
trim, elevated floor perimeters, and stair steps. Fasten down firmly with
adhesive and nails or screws. Predrill nail holes to prevent splitting.
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QUARTER ROUND: a molding used to cover expansion space next to
baseboards, case goods, and stair steps. Predrill and nail to the vertical
surface, not into the floor.
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COMBINATION BASE AND SHOE: a molding used when a base is
desired. Used to cover expansion space between the floor and the wall. Predrill
and nail into the wall, not the floor.
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T-MOLDING: a molding used as a transition piece from one
flooring to another of equal height or to gain expansion spaces. Fasten at the
heel in the center of the molding. Additional support may need to be added to
the heel of the molding dependent upon the thickness of the goods covered.
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