Division of LWO Corp. / P.O. Box 17125 / 3841 North Columbia Boulevard / Portland, Oregon
503-286-5372 / fax 1-503-286-4092 / www.arboria.com
445.35.86
4 of 4
updated
04/26/05
ATTACH TRELLIS CAP BOARDS TO THE RAFTERS
INSTALLING THE ARBOR
Arbors must be well secured to prevent tipping over. We
have provided 4 anchors for securing the arbor to concrete
footings, the most common method of
securing it. If you use this method you will
also need 2 bags of pre-mix concrete. In
some cases it may be acceptable to secure the
arbor to some existing structure such as a fence post. If you
are installing your arbor on concrete or a deck, see your
hardware dealer for appropriate hardware.
• Move the arbor to its fi nal location. (You’ll
need a helper). When you are satisfi ed with
the location, mark the positions of the posts,
then move the arbor aside and lay it carefully
on its side. Dig a hole at least 6” wide and
12” deep for each post.
• Attach the anchors to the posts using the ¾”
screws provided. (a).
• Carefully, move the arbor back to its fi nal position.
Support it plumb and level over the holes with bricks,
stones or blocks of wood under the side panel rails. The post bottoms should be close to the level
of the ground surface. (b).
• Fill each hole with bagged concrete, mixed according to the manufacturer’s instructions. Concrete
should come to within ¼” of the bottom of the posts but the post should not be in the concrete.
Step 4
• With the arbor still on its side, raise the
rafter end slightly using blocks or cap
boards under the header (e).
• Start 2 1/2” screws through two of the cap
boards from their top edges (the rounded
side of the ends should be down). Let
screw point project slightly. Line up one
of the cap boards between the two guide
marks on the top edge of the rafter nearest
to one post top, with the screw point at the
center line of the board. Drive the screw
in, then attach the other end to the lower
rafter in the same manner.
• Repeat process with the cap board above the post-top on the other side.
Remove the blocks under the header: the arbor will remain supported by the installed cap boards,
Then we recommend attaching trellis caps starting from the center positions and moving out
toward the end. Caps should be attached in numerical order as shown above.
3/4” screws
here
Temporary
supports
Concrete
(a)
(b)
Soil
Anchor butts into
bottom of rail
Side panel
rail
(e)
1st
1st
2nd
2nd
3rd
4th
3rd
4th
