Truss alteration letter from EngineerM iTe "
MiTek USA, Inc.
250 Klug Circle
Corona, CA 92880
951-245-9525
Re: J 1097996
Chinook Lumber Inc.
The truss drawing(s) referenced below have been prepared by MiTek USA, Inc. under my direct supervision
based on the parameters provided by The Truss Company.
Pages or sheets covered by this seal: Kl 1287049 thru K11287051
My license renewal date for the state of Washington is May 16, 2023.
., 51v 8 , /,�";
February 28,2022
Baxter, David
IMPORTANT NOTE: The seal on these truss component designs is a certification
that the engineer named is licensed in the jurisdiction(s) identified and that the
designs comply with ANSI/TPI 1. These designs are based upon parameters
shown (e.g., loads, supports, dimensions, shapes and design codes), which were
given to MiTek or TRENCO. Any project specific information included is for MiTek's or
TRENCO's customers file reference purpose only, and was not taken into account in the
preparation of these designs. MiTek or TRENCO has not independently verified the
applicability of the design parameters or the designs for any particular building. Before use,
the building designer should verify applicability of design parameters and properly
incorporate these designs into the overall building design per ANSI/TPI 1, Chapter 2.
Chinook Lumber Inc.
K11287050
1097996 F02R1 Common Girder 1 1
Job Reference (optional)
ahe Truss Co., Buffington, WA, 98233 8.530 s Jan 25 2022 MITek Industries, Inc, Mon Feb 28 09.48:10 2022 Page 2
ID:KO4zAbsv1L2x2U7nmmZ6fFzu2go-TNPvj6CfdSgM2MkHTVkp9wS5?xmgsdbur5ihVxzgcuZ
NOTES-
10) * This truss has been designed for a live load of 23.Opsf on the bottom chord in all areas where a rectangle 3-6-0 tall by 2-0-0 wide will fit between the bottom chord and
any other members.
11) Refer to girder(s) for truss to truss connections.
12) Provide mechanical connection (by others) of truss to bearing plate capable of withstanding 93 lb uplift at joint 21 and 231 lb uplift at joint 16.
13) Graphical purfin representation does not depict the size or the orientation of the purlin along the top and/or bottom chord.
14) Hanger(s) or other connection device(s) shall be provided sufficient to support concentrated load(s) 751 lb down and 105 lb up at 22-10-13, and 319 lb down and 59 lb up
at 27-8-9 on bottom chord. The design/selection of such connection device(s) is the responsibility of others.
15) In the LOAD CASE(S) section, loads applied to the face of the truss are noted as front (F) or back (B).
LOAD CASE(S)
1) Dead + Snow (balanced): Lumber Increase=1.15, Plate Increase=1.15
Uniform Loads (plf)
Vert: 1-3=-66, 10-14=-66, 14-15=-66, 16-21=-14, 3-7=-66, 7-10=-66
Concentrated Loads (lb)
Vert:17=-751(F) 25=-319(F)
2) Dead + 0.75 Snow (balanced): Lumber Increase=1.15, Plate Increase=1.15
Uniform Loads (plf)
Vert: 1-3=-53, 10-14=-54, 14-15=-53, 16-21=-14, 3-7=-54, 7-10=-53
Concentrated Loads (lb)
Vert: 17=-630(F) 25=-267(F)
3) Dead + 0.75 Snow (Unbal. Left): Lumber Increase=1.15, Plate Increase=1.15
Uniform Loads (plf)
Vert: 1-3=-65, 10-14=-27, 14-15=-27, 16-21=-14, 3-7=-54, 7-10=-27
Concentrated Loads (lb)
Vert: 17=-630(F) 25=-267(F)
4) Dead + 0.75 Snow (Unbal. Right): Lumber Increase=1.15, Plate Increase=1.15
Uniform Loads (plf)
Vert: 1-3=-27, 10-23=-62, 14-23=-54, 14-15=-53, 16-21=-14, 3-7=-27, 7-10=-62
Concentrated Loads (lb)
Vert:17=-630(F) 25=-267(F)
5) Dead + Uninhabitable Attic Without Storage: Lumber Increase=1.25, Plate Increase=1.25
Uniform Loads (pif)
Vert: 1-3=-16, 10-14=-16, 14-15=-16, 16-21=-34, 3-7=-16, 7-10=-16
Concentrated Loads (lb)
Vert; 17=431(F) 25=-178(F)
6) Dead + 0.6 MWFRS Wind (Pos. Internal) Left: Lumber Increase=1.60, Plate Increase=1.60
Uniform Loads (plf)
Vert* 1-3=12, 10-14=6, 14-15=2, 16-21=-8, 3-7=15, 7-10=9
Horz: 1-3=-20, 10-14=14, 14-15=10, 1-21=1 1. 14-16=13, 3-7=-24, 7-10=18
Concentrated Loads (lb)
Vert: 17=100(F) 25=54(F)
7) Dead + 0,6 MWFRS Wind (Pos. Internal) Right: Lumber Increase=1.60, Plate Increase=1.60
Uniform Loads (plf)
Vert; 1-3=6, 10-14=12, 14-15=22, 16-21=-8, 3-7=6, 7-10=9
Horz: 1-3=-14, 10-14=20, 14-15=31, 1-21=-13, 14-16=-11, 3-7=-15, 7-10=18
Concentrated Loads (lb)
Vert: 17=100(F) 25=54(F)
8) Dead + 0.6 MWFRS Wind (Neg, Internal) Left: Lumber Increase=1.60, Plate Increase=1.60
Uniform Loads (plf)
Vert: 1-3=-17, 10-14=-10, 14-15=-6, 16-21=-14, 3-7=-17, 7-10=-17
Horz: 1-3=1, 10-14=6, 14-15=10, 1-21=18, 14-16=5, 3-7=1, 7-10=-1
Concentrated Loads (Ib)
Vert, 17=105(F) 25=59(F)
9) Dead + 0.6 MWFRS Wind (Neg. Internal) Right: Lumber Increase=1.60, Plate Increase=1.60
Uniform Loads (plf)
Vert: 1-3=-10, 10-14=-17, 14-15=-13, 16-21=-14, 3-7=-9, 7-10=-17
Horz: 1-3=-6, 10-14=-1, 14-15=3, 1-21=-5, 14-16=-18, 3-7=-7, 7-10=-1
Concentrated Loads (lb)
Vert: 17=105(F) 25=59(F)
10) Dead + 0.6 MWFRS Wind (Pos. Internal) 1st Parallel: Lumber Increase=1.60, Plate Increase=1.60
Uniform Loads (plf)
Vert: 1-3=12, 10-14=12, 14-15=23, 16-21=-8, 3-7=12, 7-10=12
Horz: 1-3=-21, 10-14=21, 14-15=31, 1-21=-16, 14-16=16, 3-7=-21, 7-10=21
Concentrated Loads (lb)
Vert: 17=100(F) 25=54(F)
11) Dead +0.6 MWFRS Wind (Pos. Internal) 2nd Parallel: Lumber Increase=1.60, Plate Increase=1.60
Uniform Loads (plf)
Vert: 1-3=5, 10-14=5, 14-15=15, 16-21=-8, 3-7=5, 7-10=5
Horz: 1-3=-13, 10-14=13, 14-15=24, 1-21=-16, 14-16=16, 3-7=-13, 7-10=13
Concentrated Loads (lb)
Vert: 17=100(F) 25=54(F)
12) Dead +0.6 MWFRS Wind (Neg. Internal) 1st Parallel: Lumber Increase=1.60, Plate Increase=1.60
Uniform Loads (plf)
Vert: 1-3=-17, 10-14=-17, 14-15=-13, 16-21=-14, 3-7=-17, 7-10=-17
Horz: 1-3=1, 10-14=-1, 14-15=3, 1-21=-9, 14-16=9, 3-7=1, 7-10=-1
Concentrated Loads (lb)
Vert: 17=105(F) 25=59(F)
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Design valid for use only with MiTek® connectors. This design is based only upon parameters shown, and is for an individual building component, not
a truss system. Before use, the building designer must verify the applicability of design parameters and properly incorporate this design into the overall MR
building design- Bracing indicated Is to prevent bucklIng of individual truss web and/or chord members only. Additional temporary and permanent bracing ` '
Is always required for stability and to prevent collapse with possible personal injury and property damage. For general guidance regarding the
fabrication, storage, delivery, erection and bracing of trusses and truss systems, see ANSI/TPIf qualify Criteria, DSB-89 and SCSI Building Component 250 Klug Circle
Safety Information available from Truss Plate Institute, 2670 Crain Highway, Suite 203 Waldorf, MD 20601 Corona, CA 92880
Job
Truss
Truss Type
ty
Ply
Chinook Lumber Inc
11097996
F02R1
Common Girder
I
1
1
K11287050
Job Reference (optional) —
me Truss Co„ Burlington, WA, 98233
LOAD CASE(S)
30) 10th Dead + Snow (Unbal. Left): Lumber Increase=1.15, Plate Increase=1.15
Uniform Loads (plf)
Vert: 1-3=-31, 10-14=-31, 14-15=-31, 16-21=-14, 3-7=-89, 7-10=-31
31) 11th Dead + Snow (Unbal. Left): Lumber Increase=1.15, Plate Increase=1.15
Uniform Loads (plf)
Vert:1-3=-78, 10-14=-31,14-15=-31, 16-21=-14,3-7=-31, 7-10=-31
32) 12th Dead + Snow (Unbal. Right): Lumber Increase=1.15, Plate Increase=1.15
Uniform Loads (plf)
Vert: 1-3=-31, 10-24=-69, 14-24=-66, 14-15=-66, 16-21=-14, 3-7=-70, 7-10=-31
33) 13th Dead + Snow (Unbal. Right): Lumber Increase=1.15, Plate Increase=1.15
Uniform Loads (plf)
Vert, 1-3=-31, 10-14=-31, 14-15=-31, 16-21=-14, 3-7=-31, 7-10=-83
34) 14th Dead + Snow (Unbal. Right): Lumber Increase=1.15, Plate Increase=1,15
Uniform Loads (plf)
Vert: 1-3=-31, 10-14=-76, 14-15=-76, 16-21=-14, 3-7=-31, 7-10=-31
8.530 s Jan 25 2022 MiTek Industries, Inc. Mon Feb 28 09;48;10 2022 Page 4
ID:K04zAbsvl L2X2U7nmmZ6fFzu2go-TNPvj6CfdSgM2MkHTVkp9wS5?xmgsdbur5ihVxzgcuZ
Vr fy design nar91na.n:c nod READ NOTES ON THIS AND lN(AJ.)OED S11TEX PEFE,<FNCE Pi: E Mil 7.173 inv 5.1R..EFORF.. USE
Design valid for use only with MiTek® connectors. This design is based only upon parameters shown, and is for an indvldual building component, not �F
a truss system. Before use, the building designer must verity the applicability of design parameters and properly incorporate this design into the overall
but design. Bracing indicated is to prevent buckring of individual truss web and/or chord members only. Additional temporary and Qermanent bracing �� °� `
is always required for stability and to prevent collapse whin possible personal injury and property damage. For general guidance regarding the
fabrication, storage, delivery, erection and bracing of trusses and truss systems, see ANS11TP11 Quality Criteria, DSB•89 and BCSI Building Component 250 Klug Clrcle
Safety Information available from Truss Plate Institute, 2670 Crain Highway, Suite 203 Waldorf, MD 20601 Corona, CA 92880