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Straps & Ties
CS/CMST/CMSTC Coiled Straps
CMSTC provides nail slots for easy installation and coined edges for safe
handling. CS are continuous utility straps which can be cut to length on the
job site. Packaged in lightweight (about 40 pounds) cartons.
FINISH: Galvanized. Some products available in ZMAX® coating;
see Corrosion Information, pages 14-17.
INSTALLATION:
• Use all specified fasteners. See General Notes.
• Wood shrinkage after strap installation across horizontal wood members
may cause strap to buckle outward.
• Refer to the applicable code for minimum nail penetration and minimum
wood edge and end distances.
• The table shows the maximum factored resistances and the nails
required to obtain them. Fewer nails may be used; reduce the factored
resistance as shown in footnotes.
• CMST only–Use every other triangle hole if the wood tends to split.
Use round and triangle holes for comparable MST loads, providing
wood does not tend to split.
• For lap slice and alternate nailing information, request to technical
bulletin T-CMST.
Typical CS
Installation as a
Floor-to-Floor Tie
(CMST requires
minimum
2-2x studs)
End h Cut
Lengt ength
L
an
r Sp
Clea
Nails not
required in
clear span
Engdth
Len
Gauge stamped on part for
easy identification
CMST14 Hole Pattern
(CMST12 similar)
CS16 Hole Pattern
(all other CS straps similar)
CMSTC16 Hole Pattern
These products are available with additional corrosion protection. Additional products on this page may also be available with this option, check with Simpson Strong-Tie for details.
Factored Tensile Resistance
Catalogue C-C-CAN2015 © 2015 SIMPSON STRONG-TIE COMPANY INC.
Model
No.
CS22
CS20
CS18
Ga
22
20
18
CS16
Total Coil
Length
(ft)
300
250
200
150
End
Length
(in)
10
12
12
14
Cut
Length
(in)
clear span + 20
clear span + 24
clear span + 24
clear span + 28
Fasteners
(Total)
16-8d
18-8d
20-8d
24-8d
16
CMSTC16
54
20
clear span + 40
46-10d
CS14
100
22
clear span + 44
34-8d
52 1⁄2
31
clear span + 62
66-10d
40
43
clear span + 86
94-10d
14
CMST14
CMST12
12
D.Fir-L
S-P-F
(K D = 1.00)
(K D = 1.15)
(K D = 1.00)
(K D = 1.15)
lbs
lbs
lbs
lbs
kN
kN
kN
kN
1140
1140
1075
1140
5.07
5.07
4.78
5.07
1390
1390
1295
1390
6.18
6.18
5.76
6.18
1745
1850
1620
1850
7.76
8.23
7.21
8.23
2305
2305
2155
2305
10.25
10.25
9.59
10.25
5685
5845
5195
5845
25.29
26.00
23.11
26.00
3360
3360
3090
3360
14.95
14.95
13.75
14.95
8430
8430
7455
8430
37.50
37.50
33.16
37.50
11995
11995
10615
11995
53.36
53.36
47.22
53.36
Straps & Ties
Dimensions
1.Factored resistances shown are the lesser of the steel tensile strength (Tr) or the lateral nail value (Nr).
2.Use half of the required nails in each member being connected to achieve the listed resistances.
No. of Nails Used
x Table Value
3.Calculate the connector value for a reduced number of nails as follows: Factored Resistance =
No. of Nails in Table
Example: CS14 on D.Fir-L with 30 nails total.
30 Nails (Used)
x 3360 lbs = 2965 lbs
Factored Resistance =
(Half of the nails in each member being connected)
34 Nails (Table)
4.NAILS: 10d = 0.148" dia. x 3" long, 8d = 0.131" dia. x 2 1⁄2" long. See pages 22-23 for other nail sizes and information.
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