2004, 07-21 Inland NW Engineering LtrIEland
artlnwcit
h B■giatcriaig. Inc.
Tom Lawson
T&TContracting
P. O. Box 4
Republic, WA 89189
Tapia Office Corder. Oreen Flag Building
104 South Freya Str..t suite 1104'
Spolana, WAN=
(500) 532-1532 Voice, Fax and Gm
July 21, 2004
RE: Munson Truss, 2415 North Ellzabelh, Spokane Valley, Washington
Project Number 2004164
Dear Tom,
We have reviewed the sketch of the site built trusses for the above referenced structure. The design
is based on matching the configuration of existing trusses. The remainder of the structure Is Intended
to be constructed using the Conventional Light -Frame Construction provisions of the building code.
Our review Is limited to the design of the trusses themselves.
Please note that without the stamp of a licensed engineer or architect on the drawings, the owner and
contractor cavy full liability for accuracy of the design and compliance with provisions of the building
code. Building permits and design documents for specific elements such as roof trusses and floor
Joists do not reduce this liability as the parties preparing these documents are not responsible for
thorough review of the overall structure. It is also important to recognize that the Conventional Light -
Frame Construction provisions of Chapter 23 Division IV require engineering design of the gravity Toad
system when loads exceed those lusted for dimensional lumber framing. Design services performed
by roof truss and floor Joist suppliers do not generally Include portions of the gravity load system which
do not supply.
The truss Is to be constructed using 2x4 Number Two Douglas Flr-Larch top and bottom chords and
2x4 Stud Grade Spruce -Pine -Fir, Hem -Fir or Douglas Fir -Larch web members. The total overall truss
length Is 28'-0' supported by wood framing at 26'-0" outside dimensions with flat bottom chords and
top chords sloped at 2.75:12 to a peak at 3'-3 Y2 at mid -span. Webs conned top and bottom chords
vertically at center and diagonally starting at the bottom chord center intersecting alternately top and
bottom chords at 4'-4' maximum on center spacing along each chord. The chords are attached to
each other at the support, peak and splices and to web members with 5/8' plywood gusset plates both
sides. The gusset plates must be attached with 27-8d rinkshank nails both sides into each chord
segment et supports and splices and 5-8d ringshank nails both sides into each piece at peak and web
member connections.
If you have any questions or need any additional Information, please call.
Sincerely,
Brett Danielson, P. E.
enclosures
BCD/bod
0 Page 2
July 21, 2004
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