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Tech Bulletins

Tech Bulletin Ledger Board

  •   For correct addition of a deck to your home
  •  For correct joist span and spacing
  •  For correct placement and number of RSS screws

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Tech Bulletin Multi Ply

  •  For multiple sawn lumber and engineered wood beams
  •  For correct number and spacing of screws
  •  For calculations involving face loading, point loading and top loading of beams

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Tech Bulletin Uplift

  •  For roof joist or roof truss to top plate or stud connection
  •  For allowable uplift per screw type used
  •  For fastening above or below the truss

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GRK Headquarters

GRK Fasteners USA
ITW Renovations / Remodeling
155 Harlem Avenue, Building N3E
Glenview, IL 60025
Tel: 877-489-2726
Fax: 847-619-8403

GRK Fasteners Canada
ITW Construction Products
120 Travail Road
Markham, ON L3S 3J1
Tel: 800-263-0463
Fax: 800-895-5160