PB Post Base
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The PB post base provides a connection between a post (or column) for decks, patio covers and other top-supported structures. Available with standard or ZMAX® galvanization, which offers extra corrosion resistance for outdoor or treated-wood applications.
- 12 gauge
- Galvanized. Some products available in ZMAX or HDG coating. See Corrosion Information.
- Use all specified fasteners; see General Notes.
- Install either nails or bolts.
- Post bases do not provide adequate resistance to prevent members from rotating about the base and therefore are not recommended for non-top-supported installations (such as fences or unbraced carports).
- Holes are provided for installation with either 0.162" x 3 1/2" nails or 1/2" bolts for PB66 and PB66R; all other models use 0.162" x 3 1/2" nails only. A 2" minimum sidecover is required to obtain the full load.
- Loads may not be increased for duration of load.
- Concrete shall have a minimum compressive strength, f'c = 2500 psi.
- Multiply seismic and wind ASD uplift and lateral load values by 1.43 or 1.67, respectively, to obtain LRF D capacities.
- In accordance with IBC Section 1613.1, detached one- and two-family dwellings in Seismic Design Category (SDC) may use “Wind and SDC A&B” allowable loads.
- Downloads shall be reduced where limited by capacity of the post.
- For lateral loads for all PB models: F1 allowable = 765 lbs. F2 allowable = 1325 lbs.
- Designer is responsible for concrete design.
- Structural composite lumber columns have sides that show either the wide face or the edges of the lumber strands/veneers known as the narrow face. Values in the tables reflect installation into the wide face. See technical bulletin T-C-SCLCLM for load reductions resulting from narrow-face installations.
- 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.
Code Reports & Compliance