Caps & Bases
Column Bases
MATERIAL: Strap: LCB—12 gauge; CB4x, CB5x, CB6x—7 gauge; CB7x and larger—3 gauge Base: LCB—16 gauge; CB4x through CB9x—7 gauge; CB10x—3 gauge FINISH: LCB, CB44, CB46, CB48, CB66, CB68, CB610—galvanized; all other CB—Simpson Strong-Tie® gray paint or HDG. Some models available in HDG or stainless steel INSTALLATION: • Use all specified fasteners. See General Notes. • For full loads, minimum side cover required is 3" for CB, 2" for LCB. • Install all models with bottom of base plate flush with concrete.
3"
43⁄8 " 51 ⁄4" 6 1/2" – LCB44, LCB46 5 1/2" – LCB66 8" – All others
CB44 (CB46, CB48, CB64, CB66, CB68, CB86, CB88, CB610 similar)
Configuration of all other CB sizes
Caps & Bases
• 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). OPTIONS: • LCB and CB are available in rough size. Other sizes available for CB specify W1 and W2 dimensions. Consult Simpson Strong-Tie for bolt sizes and allowable loads. CODES: See page 12 for Code Reference Key Chart.
15⁄16" for 5⁄8" Bolts 11⁄2" for 3⁄4" Bolts For 5 ⁄8 For 3 " Bolt s ⁄4" B olts
LCB/CB
Model No.
Nominal Column Size
LCB44 CB44 LCB46 CB46 CB48 CB5-4.5 CB5-6 LCB66 CB66 CB6-7 CB68 CB610 CB612 CB71/8 -4 CB71/8 -6 CB71/8 -7 CB7-6 CB7-7.5 CB7-9 CB7-10.5 CB86 CB88 CB810 CB812 CB9-6 CB9-7.5 CB9-9 CB9-10.5 CB1010 CB1012 CB1212
4x4 4x4 4x6 4x6 4x8 GLULAM GLULAM 6x6 6x6 6x 6x8 6x10 6x12 PSL PSL PSL GLULAM GLULAM GLULAM GLULAM 8x6 8x8 8x10 8x12 GLULAM GLULAM GLULAM GLULAM 10x10 10x12 12x12
Dimensions (in.) W1
W2
3 9⁄16 3 9⁄16 3 9⁄16 3 9⁄16 3 9⁄16 4 1⁄2 6 5 1⁄2 5 1⁄2 5 1⁄2 5 1⁄2 5 1⁄2 5 1⁄2 7 1⁄8 7 1⁄8 7 1⁄8 6 7 1⁄2 9 10 1⁄2 7 1⁄2 7 1⁄2 7 1⁄2 7 1⁄2 6 7 1⁄2 9 10 1⁄2 9 1⁄2 9 1⁄2 11 1⁄2
3 1⁄2 3 9⁄16 5 1⁄2 5 1⁄2 7 1⁄2 5 1⁄8 5 1⁄8 5 1⁄2 5 1⁄2 7 7 1⁄2 9 1⁄2 11 1⁄2 3 1⁄2 5 1⁄2 7 6 3⁄4 6 3⁄4 6 3⁄4 6 3⁄4 5 1⁄2 7 1⁄2 9 1⁄2 11 1⁄2 8 3⁄4 8 3⁄4 8 3⁄4 8 3⁄4 9 1⁄2 11 1⁄2 11 1⁄2
Allowable Loads DF/SP/SPF/HF (160) Wind and SDC A&B SDC C-F Code Machine NonNonRef. Cracked Cracked Cracked Cracked Bolts Nails Qty. Dia. (in.) Uplift Uplift Uplift Uplift 1 12-16d 2 ⁄2 1170 820 985 690 5 NA 2 ⁄8 6710 4700 5640 3945 I28, 1 12-16d 2 ⁄2 1170 820 985 690 F1, L27 5 NA 2 ⁄8 6710 4700 5640 3945 5 NA 2 ⁄8 6710 4700 5640 3945 5 NA 2 ⁄8 6710 4700 5640 3945 170 5 NA 2 ⁄8 6710 4700 5640 3945 1 12-16d 2 ⁄2 1170 820 985 690 I28, 5 F1, L27 NA 2 ⁄8 6710 4700 5640 3945 5 NA 2 ⁄8 6710 4700 5640 3945 170 5 NA 2 ⁄8 6710 4700 5640 3945 I28, F1, L27 5 NA 2 ⁄8 6710 4700 5640 3945 5 NA 2 ⁄8 6710 4700 5640 3945 3 NA 2 ⁄4 6710 4700 5640 3945 3 NA 2 ⁄4 6710 4700 5640 3945 3 NA 2 ⁄4 6710 4700 5640 3945 3 NA 2 ⁄4 6710 4700 5640 3945 3 NA 2 ⁄4 6710 4700 5640 3945 3 NA 2 ⁄4 6710 4700 5640 3945 3 NA 2 ⁄4 6710 4700 5640 3945 3 NA 2 ⁄4 6710 4700 5640 3945 170 3 NA 2 ⁄4 6710 4700 5640 3945 3 NA 2 ⁄4 6710 4700 5640 3945 3 NA 2 ⁄4 6710 4700 5640 3945 3 NA 2 ⁄4 6710 4700 5640 3945 3 NA 2 ⁄4 6710 4700 5640 3945 3 NA 2 ⁄4 6710 4700 5640 3945 3 NA 2 ⁄4 6710 4700 5640 3945 3 NA 2 ⁄4 6710 4700 5640 3945 3 NA 2 ⁄4 6710 4700 5640 3945 3 NA 2 ⁄4 6710 4700 5640 3945 Column Fasteners
1. Loads may not be increaed for short-term loading. 2. Concrete shall have a minimum compressive strength, f'c = 2500 psi. 3. LCB products may be installed with either bolts OR nails (not both) to achieve table loads. 4. Multiply Seismic and Wind ASD load values by 1.4 or 1.6 respectively to obtain LRFD capacities. 5. In accordance with IBC Section 1613.1, detached one- and two-family dwellings in Seismic Design Category (SDC) C may use “Wind and SDC A&B” allowable loads.
LCB For 5 ⁄8" B o For 3 lts ⁄4" B olts
C-C-2015 © 2015 SIMPSON STRONG-TIE COMPANY INC. PRINTED 12/14 (This page has been updated since printing)
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.
3" Min. Side Cover
3" Min. Side Cover
CB9
(CB5, CB7 similar) for Glulam Column
6. Download capacity shall be based on either the wood post design or concrete design calculated per code. See pages 245-246 for common post allowable loads. 7. Designer is responsible for concrete design. Minimum foundation dimensions are for anchorage only. 8. Loads must not be increased by short-term loading. 9. NAILS: 16d = 0.162" dia. x 3 1⁄2" long. See pages 22-23 for other nail sizes and information.
UPDATED 03/27/15
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