Page 47 of Wood Construction Connectors 2006 Catalog by Simpson Strong-Tie
48
Caps Bases
PB/PBS Regular and Standoff Post Bases
IS Insulation Supports
Typical PB
Installation
Model
No.
Dimensions
Allowable Loads (DF/SP)
W
L
12-16d Nails
(133 160)
2- MB
Uplift
F1
F2
Uplift
(133 160)
PB44
3
3
1365
765
1325
PB44R
4
3
1365
765
1325
PB46
5
3
1365
765
1325
7, 90, 121
7, 62, 90, 121
PB66
5
5
1640
765
1325
1640
PB66R
6
5
1640
765
1325
1640
Code
Ref.
The PBS features a 1" standoff height. It reduces the potential
for decay at post and column ends.
MATERIAL: PB 12 gauge; PBS see table.
FINISH: Galvanized. Some products available in Z-MAX or HDG;
see Corrosion-Resistance, page 6-7.
INSTALLATION: Use all specified fasteners. See General Notes.
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).
PB: Holes are provided for installation with either 16d commons
or bolts for PB66 and PB66R; all other models use 16d
commons only. A 2" minimum sidecover is required to obtain
the full load.
PBS: Embed into wet concrete up to the bottom of the 1" standoff
base plate. A 2" minimum side cover is required to obtain the full
load. Holes in the bottom of the straps allow for free concrete flow.
CODES: See page 12 for Code Listing Key Chart.
Typical PBS44A
Installation
Model
No.
Nominal
Post
Size
Material
Dimensions
Fasteners
Allowable Loads (DF/SP)
Base
(Ga)
Strap
(Ga)
W
L
H
HB
Anch.
Dia
Post
Uplift (133)
Uplift (160)
F1 (133 160) F2 (133 160)
Down
(100)
Nails
Nails
Bolts
Nails
Bolts
Nails
Bolts
Nails
Bolts
Qty
Dia
5, 41,
85, 121
PBS44A
4x4
12
14
3
3
3
14-16d
2
2400
2400
2400
2400
1165
230
885
885
6665
6
PBS46
4x6
12
14
3
5
3
14-16d
2
2400
2400
2400
2400
1165
360
885
885
9335
6
Machine
Bolts
Code
Ref.
PBS66
6x6
12
12
5
5
3
14-16d
2
2630
3560
3160
4000
1865
570
1700
1700
9335
6
1. Allowable loads have been increased 33% and 60% for earthquake or wind
loading; no further increase allowed; reduce where other loads govern.
2. PBS Downloads may not be increased for short-term loading.
3. PBS Designer to design concrete for shear capacity.
4. PBS For higher downloads, solidly pack grout under 1" standoff plate before
installing into concrete. Base download on column or concrete, according to the code.
5.Downloads shall be reduced where limited by buckling capacity of the post.
6. When using structural composite lumber posts, bolts must be applied to the
wide face of the post.
7. NAILS: 16d 0.162" dia. x 3 long. See page 16-17 for other nail sizes
and information.
PB
Available with additional corrosion protection. Check with factory.
Typical IS Installation
Mitered edges ensure a tight fit when installed between joists.
INSTALLATION: Install between joists. IS16 for 16" o.c. spacing;
IS24 for 24" o.c. spacing. Follow insulation manufacturers
installation instructions.
Wear safety glasses, gloves and other appropriate safety
equipment.
Model
Gauge
Length
IS16
15 "
IS24
14 ga
14 ga
23
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