We use cookies on this site to enhance your user experience. By clicking "I AGREE" below, you are giving your consent for us to set cookies. Privacy Policy

text.skipToContent text.skipToNavigation

PAI Purlin Anchor for I-Joist


On This Page

Purlin Anchors

This product's information may differ depending on the category of use. You are currently viewing details related to Purlin Anchors. You can also view product information related to the category: Misc. Connectors for Engineered Wood

The PAI is a solution for wood-to-concrete and wood-to-masonry connections which satisfies code requirements. This purlin anchor is specifically designed for I-joist connections to concrete or masonry walls. The PAI features a dual-embedment line for ease of installation.

Key Features

  • Minimum embedment line indicators for both concrete and masonry installations
  • Nailing pattern optimized for I-joist wood member
  • Low design profile minimizes visibility


  • 12 gauge


  • Galvanized


  • Use all specified fasteners; some models have extra fastener holes. See General Notes.
  • Purlin anchor must hook around rebar.
  • Allowable loads are for a horizontal installation into the side of a concrete or masonry wall.
  • Strap may be bent one full cycle (bent vertical 90°, then bent horizontal).

Edge Distance — minimum concrete edge distance is 5". Minimum concrete-block left-to-right edge distance is 20".

Concrete Block Wall — the minimum wall specifications are:

A — one # 4 vertical rebar, 32" long, 16" each side of anchor
B — two courses of grout-filled block above and below the anchor (no cold joints allowed)
C — a horizontal bond beam with two #4 rebars, 40" long, a maximum of two courses above or below the anchor
D — minimum masonry compressive strength, f'm = 1,500 psi

Related Literature

Product Information Table

Fastener Production Information and Stuff & Things
Model No. Ga. L (in.) Coating/Material Packaging Qty.
PAI18 12 18 1/2 Zinc Galvanized, G90 1
PAI23 12 23 3/4 Zinc Galvanized, G90 1
PAI28 12 29 Zinc Galvanized, G90 1
PAI35 12 35 Zinc Galvanized, G90 1

Code Reports & Compliance