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Countertop
Installation > L Shaped Countertop with Joint and 2
Finished Ends
Installing your new Bevella
Top
L Shaped Countertop
with Joints No Finished Ends
(Fits Between Four Walls)

Bevella RTI Countertops are engineered and manufactured
to the highest quality standards, built to your exact specifications
and are easy to install for the home enthusiast who has the
skills set for general home improvement projects around the
house.
Installing a Bevella RTI Countertop will give your kitchen
an amazing new look at such an affordable price, your budget
won’t be stretched to the max. The savings you
are about to enjoy, will enable you to complete many other
projects around the house.
Let’s Get Started
Tools Required
Tape Measure
Hammer
Pry Bar
Clamps
3/8" Variable Speed Drill
5/8" Speed Bore Bit
Jig-Saw with fine tooth blade (Laminate Cutting Preferred)
Screwdriver (Phillips & Flat)
Framing Square
Compass
Belt Sander with 80 Grit Belt
Fine mill file
7/16” Box Wrench (for bolts to connect countertop joints)
Shims
Caulking Gun with Adhesive Caulk (i.e. Phenoseal, etc., color
to blend with top)
!” Plastic Putty Knife
Duct Tape
Pencil
Sharpie Fine Point Marker Pen
Various Wrenches for disconnecting sink and/or cooktop
Disconnect Your Sink – Be sure to
shut off water valves under the sink. If there are
no valves and the main water supply has to be shut off, now
may be the right time to consider putting valves in. You
may want to contact a local plumber to handle this part of
the project. Disconnect trap and tailpiece from basket
strainer.
Care should be taken not to force wrenches either un-tightening
or tightening joints.
Remove The Sink From Your Countertop – Sinks
with metal rims, and self rimming stainless steel sinks are
generally held in with clips from the underside of the countertop. You
may want to use a flashlight to locate them. You can
generally use a long slotted screwdriver to un-loosen and
remove them.
Caution: Sometimes the sink will fall out of the
rim once clips are removed. Cast Iron sinks are heavy
and should be propped up from underneath before removing
clips.
Cast Iron Self Rimming sinks on the other hand are
removed from the top of the counter. They are usually
glued under the rim with an adhesive caulk.
Tip: You can use a portable hairdryer to heat
a small putty knife to help cut through the caulk. Once
adhesive caulk is loose, sink can be lifted out.
Use caution when lifting any sink out of the countertop. Faucets
can be damaged easily if pulled on to help remove sink.
Remove Cooktop or Built in Appliances – Be
sure gas is shut off to any appliance to be
removed. If a gas valve is not present for the
appliance now may be the right time to consider putting
valves in. You may want to contact a local plumber
to handle this part of the project.
For electrical appliances be certain power is turned
off prior to disconnecting and removing.
Built in countertop appliances are held in by various methods,
clips from underneath, screws from inside (in many cases
cooktop top surfaces lift up for cleaning or installation),
etc. Consult your appliance manual when possible.
Caution: It is always advisable to contact a Licensed
Plumbing or Electrical Contractor for removal and reinstallation
of fixtures and appliances. Most contractors will
be more than happy to assist you with this phase.
Dishwasher – Open dishwasher and
remove mounting screws secured to countertop. There
are generally two metal brackets that extend out at the top
of the tub where these screws are located and can be seen
with the door open. Close door and lock shut. (This
keeps door closed and unit from tipping over during countertop
installation)
Remove the existing Countertop – Countertops
are generally secured by screws from underneath, through
cabinet framing in the front, or corner blocks located inside
the cabinets.
If it is a very old countertop (with metal trim around the
edge perimeter), it may have been nailed down through the
top before the laminate was applied. You may have to
pry the counter up to free it from the cabinets.
Tip: Carefully making a cut in the sink or cooktop openings
will allow you to work with smaller pieces making the removal
somewhat easier.
Caution- Be careful not to damage walls, cabinets
or appliances when removing countertops or its pieces.
Carefully unpack your countertop removing all staples, cardboard
covering and packing.
Use caution when handling so as not to damage front edges,
joints or seams. The job becomes simpler if you have
a helper.
Carefully slide your countertop pieces into position to
check condition of walls and overall fit. Walls are
generally not straight and rooms are often out of square. This
can easily be taken care of with a few simple adjustments
during your installation.
Tip: Before marking any countertop surface for
cutting, apply duct tape first. then scribe or draw lines
on duct tape and go over pencil line with Sharpie marker. Duct
tape will protect the top while cutting with jig saw. Metal
bases on jig saws can mar laminate surfaces
L Shaped Countertop with Joints No
Finished Ends
(Fits Between Four Walls)

1. Measure
wall to wall openings (1,2,3, & 4) as shown
in Fig 1.

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Fig
1 |
Tip: You may want to lay countertop pieces
flat on the floor and gently push the joint together. Align
it properly and put some pieces of duct tape across the
joint to hold it together to check your dimensions.
2. Check
the outer corners for square (A, B), Fig 1. Measure
the gap between the wall and the framing square, at the
back or the front. Apply duct tape to the left
end of the countertop. Mark this dimension, either in the
front or back. Draw your line for the out of
square cut with the Sharpie fine point marker. Do
the same for the right side.
3.
Now measure between the scribed
lines and back of the countertop to make sure they are
equal to the measurements you took
DO NOT CUT ANYTHING YET
4. Measure
diagonal (5 & 6) as shown in Fig 2. Check
your corner to corner measurement on your assembled countertop,
Fig 3. If these dimensions are within a ¼”,
you should be in good shape. If this dimension is
larger than a ¼” go to the step 6.

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Fig 2 |
Fig 3 |
5 The scribe cuts can now be made. You
can either cut the material away with the jig saw with laminate
blade installed or use the belt sander to remove the wood
and laminate to the scribed line. (It is easier
to remove ⅛“ or less material with the belt sander.
Always sand in the down direction against the laminate) A
fine mill file can be used to gently file the burr off
the top edge of the laminate.
6.
Carefully place one countertop
piece in place. Be
careful with sharp corner on the joint side. You
can remove some of the drywall or plaster in the corner
if you need some clearance to adjust the piece into position. Check
fit to back wall and side wall.
7. Carefully place the other countertop piece in place. You
may have to tip it up in the corner and let that piece
lay on top of the other. Be careful not to damage
either piece. You can prop the opposite end up with
two ¾” strips. You may need to remove
some more drywall or plaster in the corner to adjust the
top. Don’t worry, the splash is 4” high
and will cover these notches in the wall. Check fit
to back wall and side wall.
8.
You will now need to begin scribing
the pieces to fit in between the walls. This will
take a little time and will require some patience. Refer
to step 5 and begin to cut a little off each piece both
on the end if necessary and the back (You can also refer
to B, Humps in the wall). Make sure you continue
to check the fit of the pieces, front overhang, and the
alignment of the joint after each cut. A little
more time spent on this step will give you a masterful
result.
9. Once your pieces are fit properly and lying in place
refer to (J) Sink Cut Outs/Appliance Cut Outs. Proceed
with this step.
10.
The countertop pieces are now ready for assembly. Coat
the entire joint edge of one of the countertop pieces with
the adhesive caulk. Insert the wafers into the slot
found in the joint edge. These help align the pieces
as they are bolted. You will probably have to lift
both pieces up together to align the wafers with the opposite
side. Insert the assembly bolts from underneath and
tighten, making sure the front edges align properly and
the two top surfaces are flush with each other. Do
not over tighten. Remove excess caulk from the laminate
surface with your plastic putty knife and clean with damp
cloth.
11. It is sometimes difficult in this type of installation
to attach the backsplashes with screws from underneath,
lift the pieces back into position, and secure the joint. The
splashes can be glued in place with your adhesive caulk. Secure
the countertop to the cabinets with screws up through the
front frames or corner blocks and in the back.
12.
Trim your splashes
to fit if necessary. Remember,
one of the splashes has the edge molding overhanging to
overlap and fit to the other. (Cut the Opposite End)
13. Coat the entire bottom edge of the backsplash with adhesive
caulking. You can use a 1’ putty knife to spread
it on evenly. Run some beads of adhesive caulk along
the back of the splash board. Put splashes into place.
14.
To
hold splashes securely while adhesive sets, cut pine furring
strips about ⅛“ longer than the distance
between the top of the splash and the bottom of the upper
cabinets. You can now wedge these into place until the
adhesive sets. Be sure that you wedge enough strips
to get an even squeeze out of caulk along the entire bottom
edge of the splashes. Strips should be spaced about
12” apart.. Scrape off excess caulk with your
plastic putty knife and clean with damp cloth.
Tip: If gaps between the backsplash and countertop still
appear after this step, loosen the back screws inside the
cabinets that hold the countertop down. Install shims
between the cabinet and the countertop under the gap areas
to close the gaps. If you need to hold the backsplashes
against the wall more securely, cut pine furring strips
about 26” and clamp onto countertop overhang while
pushing backsplash against the wall.
15. Reinstall sink and appliances
Scribing The Countertop
To scribe the counter, set the compass to the desired gap
width and run the pointer along the wall scribing a line
onto the back of the countertop. You can either cut
the material away with the jig saw with a laminate blade
installed or use the belt sander to remove the wood and laminate
to the scribed line. (It is easier to remove ⅛“ or
less material with the belt sander. Always sand in a down
direction against the laminate) A fine mill file can
be used to gently file the burr off the top edge of the laminate
after cutting.
Humps in the Wall
This can be handled in one of two ways. The back of
the countertop can be scribed to the hump, or the drywall
or plaster can be removed in that area so the countertop
can be recessed into the wall
Sink Cut Outs/Appliance Cut Outs
- Sinks are generally located in the center of the window
or center of the cabinet that it sets in. Once countertop
piece is positioned properly and before the
backsplash is attached, apply duct tape to the area where
the sink or appliance is to be cut and lay out your cut – out. Remember
to allow for the ¾” backsplash behind the
sink and appliances.
Tip: If possible it is always best to lay your
sink or appliance upside down on the top to assure placement. Trace
the perimeter. Remove the fixture and draw the cutout
line inside the perimeter line.
Remember measure twice, cut once! The hole
for your fixture or appliance MUST be smaller than
the overall dimension of your fixture or appliance that
is going into that cutout. Carefully check your measurements!
- Drill a hole inside your cutout with the speed bore bit. This
will be the starting point for cutting with your jigsaw. NEVER cut
square corners. Most, if not all sinks, require radius
corners in their cut-outs. Cut-outs for appliances
that have square corners still require a small radius. Use
your speed bore bit to drill a hole in each corner for
this type of cut-out. Square corners in laminate
cut-outs encourage stress cracks and should be avoided.
Installing the Backsplashes
Note: Be Careful! Your splashes are left or right. The
edge molding over-hangs to properly fit when connected
in the back corner.
Countertop was not scribed to the wall
1. To install the backsplashes and you did
not have
to scribe the countertops to the wall slide top forward
and drill 3/16” holes 3/8” in from back edge,
6” 8” apart. Start about 2” in
from the ends of the top. Coat the entire bottom
edge of the backsplash with adhesive caulking. You
can use a 1’ putty knife to spread it on evenly. This
will give you a nice watertight seal once you have screwed
the backsplash in place.
2. Secure with 2 ½” wood screws
holding the back of the backsplash flush with the back of
the countertop. Scrape off excess caulk after splash
is secure and clean with a damp cloth
.
Countertop was scribed to the wall
1. If you did scribe the countertops push
them into place. Place the backsplashes on top of the countertop
and push them against the wall. Trace a line in front of
the splash onto the counter surface. The splash has
some flex to it and will generally conform to modest variations
in the wall. Remove the splashes and pull the countertop
away from the wall. Measure 3/8” back from that
line and drill 3/16’ screw holes 6” – 8” apart
2”’ in from the edge to mount your splash. Coat
the entire bottom edge of the backsplash with adhesive caulking. You
can use a 1’ putty knife to spread it on evenly. This
will give you a nice watertight seal once you have screwed
the backsplash in place. When securing it with 2 ½ screws
be sure to hold the front of the splash even with your front
pencil line.
2. Slide Countertop back into position checking
overhang on left or right or both and secure countertop with
wood screws through front cabinet frame or corner blocks. Caulk
along top and sides of backsplash to seal and hide gaps.