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CS/CMST Coiled Straps

CS/CMST

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Coiled Straps

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

CMSTC provides coined nail slots for lower profile when installed with 0.148" x 3 1/4" sinkers; it can be cut to length. CS are continuous utility straps which can be cut to length on the jobsite. Packaged in lightweight (about 40 lb.) 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 the General Notes for Straps and Ties.
  • For lap splice and alternate nailing information, see tables below.
  • 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.

Lap Splicing

Lap splicing of coiled straps can be used to extend standard CMST12, CMST14 and CMSTC16 strap lengths longer than 40', 52 1/2' and 54' respectively, for designing continuous drag elements and diaphragm chord members. The Strap Lap Splices table below provides the minimum splice length (Lsp) and fasteners, within the splice length, to achieve the highest allowable capacity of the strap.

The allowable loads table provides allowable loads for coiled straps when installed with different nailing schedules. The highest allowable load given for each model is limited by the steel capacity.

The Engineer/Designer of Record must evaluate and determine the adequacy of the coiled strap’s lap splice and alternative nailing applications to meet their design loads.

Options

  • CS straps are available in 25' lengths; order CS14-R, CS16-R or CS20-R
  • For stainless steel, order CS16SS-R

Related Literature

Load Tables

    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.

    For stainless-steel fasteners, see Fastener Types and Sizes Specified for Simpson Strong-Tie Connectors.

    Many of these products are approved for installation with Strong-Drive® SD Connector screws.

CS/CMST/CMSTC Coiled Straps Load Table
  1. See General Notes for Straps and Ties.
  2. Calculate the connector value for a reduced number of nails as follows:

    Example: CMSTC16 in DF/SP with 40 nails total.
    (Half of the nails in each member being connected)
  3. See table below for alternate nailing and lap splice information.
  4. Fasteners: Nail dimensions in the table are listed diameter by length. For additional information, see Fastener Types and Sizes Specified for Simpson Strong-Tie Connectors.

Strap Lap Splices

CS/CMST/CMSTC Coiled Straps — Strap Lap Splices
  1. See General Notes for Straps and Ties.
  2. 0.148" x 2 1/2" nails can be replaced by 0.148" x 3 1/4" nails. No other nail substitution is allowed for lap splices.
  3. Refer to the applicable code for minimum edge distance and minimum end distance.
  4. No strap modification is allowed and the splice must meet both the minimum number of fasteners and the minimum splice length.

Allowable Loads for Alternative Nailing

CS/CMST/CMSTC Coiled Straps — Allowable Loads for Alternative Nailing
  1. See General Notes for Straps and Ties.
  2. Fasteners: Nail dimensions in the table are listed diameter x length. For additional information, see Fastener Types and Sizes Specified for Simpson Strong-Tie Connectors.

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
CMSTC No evaluation report listing.
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
CS14-R FL10852
CS16 ER-102 ER-124 ESR-2105 ESR-2523 RR25713 RR25489 FL10852 FL13872
CS16-R RR25489 FL10852
CS16Z 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
CS18-R RR25489 FL10852
CS18S ER-102 ER-124 ESR-2105 ESR-2523 FL10852 FL13872
CS20 ER-102 ER-124 ESR-2105 ESR-2523 RR25713 RR25489 FL10852 FL13872
CS20-R RR25489 FL10852
CS22 ER-102 ER-124 ESR-2105 ESR-2523 RR25713 RR25489 FL10852 FL13872
CS22-R RR25489 FL10852

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
CMST12None
High Wind Resistant Construction Detail D133: Building Floor-to-Floor Straps - HWRC D133 Building floor to floor straps
DWG DXF
High Wind Resistant Construction Detail D36: Hollow Column - HWRC D36 Hollow Column CMST Strap Configuration Installation
DWG DXF
High Wind Resistant Construction Detail D46: Stud to Stud - HWRC D46 Stud to Stud
DWG DXF
CMST14None
High Wind Resistant Construction Detail D133: Building Floor-to-Floor Straps - HWRC D133 Building floor to floor straps
DWG DXF
High Wind Resistant Construction Detail D36: Hollow Column - HWRC D36 Hollow Column CMST Strap Configuration Installation
DWG DXF
High Wind Resistant Construction Detail D46: Stud to Stud - HWRC D46 Stud to Stud
DWG DXF
CMSTC16None
High Wind Resistant Construction Detail D133: Building Floor-to-Floor Straps - HWRC D133 Building floor to floor straps
DWG DXF
High Wind Resistant Construction Detail D36: Hollow Column - HWRC D36 Hollow Column CMST Strap Configuration Installation
DWG DXF
CS14None
CS14 Installed Perspective View
DWG DXF
High Wind Resistant Construction Detail D133: Building Floor-to-Floor Straps - HWRC D133 Building floor to floor straps
DWG DXF
CS14 Installed Perspective View - CFS Installation
DWG DXF
CS14-RNone
CS14 Installed Perspective View
DWG DXF
High Wind Resistant Construction Detail D133: Building Floor-to-Floor Straps - HWRC D133 Building floor to floor straps
DWG DXF
CS14 Installed Perspective View - CFS Installation
DWG DXF
CS16
WSW2 Detail Sheet
DWGDXF
CS16 Front View
DWG DXF
CS14 Installed Perspective View
DWG DXF
High Wind Resistant Construction Detail D133: Building Floor-to-Floor Straps - HWRC D133 Building floor to floor straps
DWG DXF
High Wind Resistant Construction Detail D45: Stud to Band Joist - HWRC D45 Stud to Band Joist"
DWG DXF
High Wind Resistant Construction Detail D6: Girder/Truss to Wood Wall Framing - HWRC D6 GirderTruss to Wood Wall Framing
DWG DXF
High Wind Resistant Construction Detail D72: Wall to Pile/Girder - HWRC D72 Wall to PileGirder
DWG DXF
High Wind Resistant Construction Detail D74: Wall to Pile/Girder - HWRC D74 Wall to PileGirder
DWG DXF
CS14 Installed Perspective View - CFS Installation
DWG DXF
High Wind Resistant Construction Detail D46: Stud to Stud - HWRC D46 Stud to Stud
DWG DXF
CS16-R
CS16 Front View
DWG DXF
CS14 Installed Perspective View
DWG DXF
High Wind Resistant Construction Detail D133: Building Floor-to-Floor Straps - HWRC D133 Building floor to floor straps
DWG DXF
High Wind Resistant Construction Detail D45: Stud to Band Joist - HWRC D45 Stud to Band Joist"
DWG DXF
CS14 Installed Perspective View - CFS Installation
DWG DXF
CS16Z
CS16 Front View
DWG DXF
CS14 Installed Perspective View
DWG DXF
High Wind Resistant Construction Detail D133: Building Floor-to-Floor Straps - HWRC D133 Building floor to floor straps
DWG DXF
High Wind Resistant Construction Detail D45: Stud to Band Joist - HWRC D45 Stud to Band Joist"
DWG DXF
High Wind Resistant Construction Detail D6: Girder/Truss to Wood Wall Framing - HWRC D6 GirderTruss to Wood Wall Framing
DWG DXF
High Wind Resistant Construction Detail D72: Wall to Pile/Girder - HWRC D72 Wall to PileGirder
DWG DXF
High Wind Resistant Construction Detail D74: Wall to Pile/Girder - HWRC D74 Wall to PileGirder
DWG DXF
CS14 Installed Perspective View - CFS Installation
DWG DXF
High Wind Resistant Construction Detail D46: Stud to Stud - HWRC D46 Stud to Stud
DWG DXF
CS20
CS20 Front View
DWG DXF
CS14 Installed Perspective View
DWG DXF
High Wind Resistant Construction Detail D133: Building Floor-to-Floor Straps - HWRC D133 Building floor to floor straps
DWG DXF
High Wind Resistant Construction Detail D45: Stud to Band Joist - HWRC D45 Stud to Band Joist"
DWG DXF
CS14 Installed Perspective View - CFS Installation
DWG DXF
High Wind Resistant Construction Detail D46: Stud to Stud - HWRC D46 Stud to Stud
DWG DXF
CS20-R
CS20 Front View
DWG DXF
CS14 Installed Perspective View
DWG DXF
High Wind Resistant Construction Detail D133: Building Floor-to-Floor Straps - HWRC D133 Building floor to floor straps
DWG DXF
High Wind Resistant Construction Detail D45: Stud to Band Joist - HWRC D45 Stud to Band Joist"
DWG DXF
CS14 Installed Perspective View - CFS Installation
DWG DXF