Use and Care Manual

Caps & Bases
91
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Caps & Bases
MiTek
®
Product Catalog
CBSQ Column Bases
These column bases install using MiTek’s WS2-EXT structural wood screws,
reducing installation time and cost. Designed for high uplift in high wind or
seismic applications. Includes a stand-off plate to protect the wood from
ground contact moisture as required by building code.
Materials: See chart
Finish: G-185 galvanizing
Options: See chart for Corrosion Finish Options
Codes: IRC R317.1.4, IBC 2304.12.2.2, IRC R407.3, IBC 2304.10.7
Installation:
• Use all specied fasteners. See Product Notes, page 18.
• MiTek’s WS2-EXT structural wood screws, 1/4" dia. x 2" long, are supplied
with CBSQ Bases.
• Maintain 3" minimum edge distance between post and edge of concrete.
• Embed the column base until the concrete surface meets the bottom
edge of the stand-off plate.
• Not recommended for fence posts or other unrestrained (not xed
or fastened at top) applications. These bases are not designed to
resist overturning (moment) loads.
Typical CBSQ44-TZ
installation
Ref. No. Strap Base W1 W2 L
Embed
4
Qty
4 x 4 CBSQ44-TZ CBSQ44-SDS2 10 16 3-9/16 3-1/2 2-1/4 7-3/16 14 WS2-EXT 11950 5955 11950 4165
4 x 6 CBSQ46-TZ CBSQ46-SDS2 10 12 3-9/16 5-7/16 2-1/4 7-3/16 14 WS2-EXT 11955 5955 11955 4165
6 x 6 CBSQ66-TZ CBSQ66-SDS2 10 12 5-1/2 5-7/16 3 7-3/16 14 WS2-EXT 11955 6870 11955 5280
4 x 4 CBSQ44-TZ CBSQ44-SDS2 10 16 3-9/16 3-1/2 2-1/4 7-3/16 14 WS2-EXT 11950 5100 11950 3570
4 x 6 CBSQ46-TZ CBSQ46-SDS2 10 12 3-9/16 5-7/16 2-1/4 7-3/16 14 WS2-EXT 11955 5100 11955 3570
6 x 6 CBSQ66-TZ CBSQ66-SDS2 10 12 5-1/2 5-7/16 3 7-3/16 14 WS2-EXT 11955 6465 11955 4525
1) Uplift loads have been increased 60% for wind and seismic loads, no further increase shall be permitted.
2) MiTek's WS2-EXT structural wood screws are 1/4" dia. x 2" long and are included with CBSQ Column Bases.
3) Concrete compressive strength shall be 2,500 psi or greater at 28 days.
4) The CBSQ shall be embedded into concrete up to specified depth. The minimum side cover is 3".
Fastener
Schedule
2
Code
Ref.
--
DF/SP Allowable Loads (Lbs.)
3
Corrosion
Finish
Download
100%
Uncracked Concrete Cracked Concrete
Download
100%
ASCE Seismic Design A & B
Dimensions (in)Steel Gauge
ASCE Seismic Design C-F
Uplift
160%
1
Uplift
160%
1
--
Wood
Screws
Column
Size
MiTek
Stock No.
Corrosion Finish
Stainless Steel Gold Coat
HDG Triple Zinc
Corrosion Finish Stainless Steel Gold Coat HDG Triple Zinc
Corrosion
Finish
Stainless Steel
Gold Coat
HDG
Triple Zinc
CBSQ46-TZ
3" min. edge
distance
1" standoff
Bearing
L
W2
1"
W1
7-3/16"
8-3/4"
Uplift