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Caps & Bases
BC/HBC/BCS Post Caps and Bases
Pilot holes for
manufacturing purposes
(Do not install bolts)
(Typ.)
Pilot holes for
manufacturing
purposes
(Do not install
bolts) (Typ.)
Base
Bottom
Beam
Flanges
Post Flanges
BC60 Half Base
Post
Flanges
(others similar)
BC4 Cap/Base
(BC46, BC6 similar)
Caps & Bases
The BCS allows for the connection of 2-2x’s to a 4x post or 3-2x’s to a 6x post.
Double shear nailing between beam and post gives added strength! The BC/HBC
series offers dual purpose post cap/base for light cap or base connections.
MATERIAL: HBC—12 gauge; all others—18 gauge
FINISH: HBC—HDG; all others—galvanized. Some products available in
ZMAX® coating; see Corrosion Information, pages 14-17.
INSTALLATION:
• Use all specified fasteners. See General Notes.
• Do not install bolts into pilot holes.
• BCS—install dome nails on beam; drive nails at an angle through
the beam into the post below to achieve the table loads
• BC—install with 16d commons or 16dx2 1⁄2" nails.
• 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).
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.
These products are approved for installation with the Strong-Drive ® SD Connector screw.
See page 24 for more information.
Model
No.
Dimensions
(in)
W1
W2
Fasteners
L1
L2
H1
BC4
7
3 ⁄16 3 ⁄16 2 ⁄8
7
2 ⁄8
3
BC46
3 9⁄16 5 1⁄2
4 7⁄8
2 7⁄8
3 1⁄2
H2
Beam
Post
Base
Bottom
Factored Resistance (K D = 1.15)
D.Fir-L
S-P-F
Uplift
Lateral
Uplift
Lateral
lbs
lbs
lbs
lbs
kN
kN
kN
kN
CAPS
BC4R
9
3
6-16d
—
2 1⁄2 12-16d 6-16d
—
4
4
4
3
5 1⁄2
5 1⁄2
4 3⁄8
4 3⁄8
3 3⁄8
6
6
6
6
3
3
12-16d 12-16d
—
BC8
7 1⁄2
7 1⁄2
7 1⁄2
7 1⁄2
4
4
12-16d 12-16d
—
BCS2-2/4
3 1⁄8 3 9⁄16 2 7⁄8
6-10d
—
BCS2-3/6
4 5⁄8 5 9⁄16 4 3/8 2 7⁄8 3 5⁄16 2 15⁄16 12-16d 6-16d
—
BC4O
3 9⁄16
—
3 1⁄4
—
2 1⁄4
—
6-16d
—
4-16d
HBC4OHDG
3 9⁄16
—
3 1⁄4
—
2 1⁄4
—
6-16d
—
4-16d
BC4OR
4
—
4
—
3
—
6-16d
—
4-16d
BC46O
5 1⁄2
—
3 3⁄8
—
3
—
6-16d
—
4-16d
BC6O
5 1⁄2
—
5 1⁄2
—
3
—
6-16d
—
4-16d
HBC6OHDG
5 1⁄2
—
5 1⁄2
—
3
—
6-16d
—
4-16d
6
—
6
—
3
—
6-16d
—
4-16d
7 1⁄2
—
7 1⁄2
—
4
—
6-16d
—
4-16d
8
—
8
—
4
—
6-16d
—
4-16d
BC6R
3
6-16d
4
BC6
Catalogue C-C-CAN2015 © 2015 SIMPSON STRONG-TIE COMPANY INC.
9
12-16d 12-16d
—
3 3⁄8 12-16d 12-16d
—
2 7⁄8 2 15⁄16 2 15⁄16 8-10d
875
3.90
1415
6.30
875
3.90
1450
6.46
1560
6.94
2545
11.34
1190
5.30
1370
6.10
1495
6.66
1495
6.66
1495
6.66
3145
14.01
3145
14.01
3145
14.01
1560
6.95
2445
10.89
620
2.76
1005
4.48
620
2.76
1030
4.59
1110
4.94
1810
8.06
845
3.76
970
4.32
1060
4.72
1060
4.72
1060
4.72
2765
12.32
2765
12.32
2765
12.32
1370
6.09
1735
7.73
510
2.27
510
2.27
510
2.27
510
2.27
510
2.27
510
2.27
510
2.27
510
2.27
510
2.27
1050
4.68
1050
4.68
1050
4.68
1050
4.68
1050
4.68
1050
4.68
1050
4.68
1050
4.68
1050
4.68
360
1.60
360
1.60
360
1.60
360
1.60
360
1.60
360
1.60
360
1.60
360
1.60
360
1.60
960
4.28
960
4.28
960
4.28
960
4.28
960
4.28
960
4.28
960
4.28
960
4.28
960
4.28
BCS2-2/4
U.S. Patent 5,603,580
Pilot holes for
manufacturing purposes
(Do not install bolts)
(Typ.)
BASES
BC6OR
BC8O
BC8OR
1.Factored resistances have been increased 15% for earthquake or wind loading with no further increase allowed;
reduce where other loads govern.
2.Uplift values shown for BCO are only applicable for short-term loading. Do not use these products for other load durations.
3.Uplift resistances do not apply where Bases are nailed into the end grain of post as per 12.9.3.4 CSA O86-14.
4.Structural composite lumber columns have sides that show either the wide face or the edges of the lumber strands/veneers.
Values in the tables reflect installation into the wide face (see technical bulletin T-SCLCOLUMNCAN for details).
5.Factored resistances shown assume dry service condition (KSF = 1.00). Multiply table values by 0.67 under wet service conditions.
6.NAILS: 16d = 0.162" dia. x 3 1⁄2" long, 10d = 0.148" dia. x 3" long. See pages 22-23 for other nail sizes and information.
BC8 Cap/Base
(BC4R, BC6R similar)
Lateral
Typical BCS
Installation
65