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CS/CMST Coiled Straps

CS/CMST

Lateral Connectors, Ties and Straps for Cold-Formed Steel Construction

This product's information may differ depending on the category of use. You are currently viewing details related to Lateral Connectors, Ties and Straps for Cold-Formed Steel Construction. You can also view product information related to the categories of: Coiled Straps, Bridging and Bracing Connectors for Cold-Formed Steel Construction, Joist Framing Connectors for Cold-Formed Steel Construction

CMSTC provides nail slots for easy installation; it can be cut to length. CS are continuous utility straps which can be cut to length on the job site. Packaged in lightweight (about 40 pounds) cartons.

Key Features

Gauge stamped on part for easy identification.

Finish

Galvanized. Some products available in ZMAX® coating. See Corrosion Information.

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 allowable loads and the nails required to obtain them. Fewer nails may be used; reduce the allowable load as shown in table notes.
  • The cut length of the strap shall be equal to twice the "End Length" noted in the table plus the clear span dimension.
  • CMST only – Use every other round 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, refer to technical bulletin Coil Strap Alternative Nailing Schedule and Lap Splice Specifications (T-CMST).
  • View step-by-step installation instructions in the Installer's Pocket Guide (S-C-INSTALL).

Options

CS straps are available in 25' lengths, order CS14-R, CS16-R, CS18-R, CS20-R or CS22-R.

Related Literature

Load Tables

CS/CMST Coiled Strap – Tension Tie Application

    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.

  1. Use half of the fasteners in each member being connected to achieve the listed loads.
  2. For CMST straps: End Length (inches) = 1/2 total fasteners x 7/8" + 1" when all holes filled. Double length if only round holes filled.
  3. For CMSTC16 straps: End Length (inches) = 1/2 total fasteners x 3/4" + 1" when all holes filled. Double length if only round holes filled.
  4. For CS straps: End Length (inches) = 1/2 total fasteners + 1".
  5. Total Cut Length = End Length + Clear Span + End Length.
  6. Calculate the connector value for a reduced number of screws as follows:

    Example: CMSTC16 on 54 mil with 24 screws

  7. Loads are based on lesser of steel strap capacity and AISI S100 fastener calculation.
  8. See more on Simpson Strong-Tie fasteners.
CS Coiled Strap – Stud Bridging Application
Model No. Total Length (ft.) Connector Material Thickness mil (ga.) Width (in.) Fasteners (At Blocking)4 Allowable Tension Loads (lbs.)
Framing Thickness mil (ga.)
33 (20) 43 (18) 54 (16)
CS16 150 54 (16) 1 1/4 9 - #10 6 - #10 4 - #10 1550
CS18 200 43 (18) 1 1/4 7 - #10 5 - #10 3 - #10 1235
CS20 250 33 (20) 1 1/4 6 - #10 4 - #10 3 - #10 945
CS22 300 27 (22) 1 1/4 5 - #10 3 - #10 3 - #10 775

    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.

  1. In order to achieve the tabulated loads in the strap, attach each strap to the blocking with the tabulated number of screws.
  2. Strap length at blocking to achieve tabulated load = number of tabulated screws + 1".
  3. Calculate the strap value for a reduced number of screws to the blocking as follows:

  4. See more information on Simpson Strong-Tie fasteners.

Code Reports

Part IAPMO UES ER ICC-ES ESR City of Los Angeles State of Florida
CMSTSee specific model numbers for code listings.
CMST12 ER-102 ER-124 ESR-2105 ESR-2523 RR25713 RR25489 FL10852 FL13872
CMST14 ER-102 ER-124 ESR-2105 ESR-2523 RR25713 RR25489 FL10852 FL13872
CMSTC16 ER-102 ER-124 ESR-2105 ESR-2523 RR25713 RR25489 FL10852 FL13872
CSSee specific model numbers for code listings.
CS14 ER-102 ER-124 ESR-2105 ESR-2523 RR25713 RR25489 FL10852 FL13872
CS16 ER-102 ER-124 ESR-2105 ESR-2523 RR25713 RR25489 FL10852 FL13872
CS18 ER-102 ER-124 ESR-2105 ESR-2523 RR25713 RR25489 FL10852 FL13872
CS18S ER-102 ER-124 ESR-2105 ESR-2523 FL10852
CS20 ER-102 ER-124 ESR-2105 ESR-2523 RR25713 RR25489 FL10852 FL13872
CS22 ER-102 ER-124 ESR-2105 ESR-2523 RR25713 RR25489 FL10852 FL13872

ESR-2523 is an Index of many of Simpson Strong-Tie Stamped and Welded Cold-formed Steel Products for Wood or Cold-formed Steel Construction

Drawings

Part Orthographic Perspective
CMSTNone
High Wind-Resistant Construction D36-D37: Hollow Column Uplift: CMST Strap Configuration Installation
DWG DXF
CMST12None None
CMST14None
High Wind-Resistant Construction D70: Wall to Pile/Girder
DWG DXF
CMSTC16None None
CSNone
CS
DWG DXF
CS CFS
DWG DXF
CS14None None
CS16
CS16
DWGDXF
CS16
DWG DXF
High Wind-Resistant Construction D45: Stud to Band Joist
DWG DXF
High Wind-Resistant Construction D46: Stud to Band Joist
DWG DXF
High Wind-Resistant Construction D72: Wall to Pile/Girder
DWG DXF
High Wind-Resistant Construction D8: Girder/Truss to Wall Framing
DWG DXF
Floor to Floor Connections
DWG DXF
Pile to Girder Connectors 2
DWG DXF
Stud to Band Joist Connections
DWG DXF
Stud to Band Joist Connections Version 2
DWG DXF
CS18
CS18
DWGDXF
None
CS18SNone None
CS20
CS20
DWGDXF
None
CS22
CS22
DWGDXF
None