PFD

PFD

PFD

PFD

Input

Conditionkeyboard_arrow_right

Job Settingskeyboard_arrow_right

lbs

Post & Holdownkeyboard_arrow_right

Output

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Holdown Model
Installed Cost
Post Size (in.)
Holdown Allowable Load (lbs)
Deflection at Demand Load (in)
Holdown Fasteners
Anchor Diameter (in)
Lowest(1) 2x48400(6) #9 x 1½" SD Screw0.375
Lowest(1) 2x49100(6) 0.148" x 1½" Nail (N10)0.375
Lowest(1) 2x49100(8) 0.148" x 1½" Nail (N10)0.375
+262.00%(2) 2x42,1450(8) ¼" x 2½" SDS Screw0.50
+281.00%(2) 2x42,1450(8) ¼" x 1½" SDS Screw0.50
+281.00%(1) 2x41,8250(8) ¼" x 1½" SDS Screw0.50
+450.00%(2) 2x43,7900(7) ¼" x 3" SDS Screw0.625
+528.00%(1) 2x43,0000(18) 0.148" x 1½" Nail (N10)0.625
+528.00%(2) 2x44,4550(18) #10 x 1½" SD Screw0.625
+528.00%(2) 2x44,2350(18) 0.162" x 2½" Nail (N16)0.625
+528.00%(2) 2x43,6100(18) 0.148" x 1½" Nail (N10)0.625
+533.00%(2) 2x45,3750(10) ¼" x 3" SDS Screw0.625
+594.00%(2) 2x43,7900(7) ¼" x 3" SDS Screw0.625
+602.00%(2) 2x45,3750(10) ¼" x 3" SDS Screw0.625
+646.00%(2) 2x43,0750(6) ¼" x 2½" SDS Screw0.625
+659.00%(1) 3x42,5250(2) ⅝" Machine Bolt0.625
+659.00%(2) 2x43,1300(2) ⅝" Machine Bolt0.625
+659.00%(1) 4x43,1300(2) ⅝" Machine Bolt0.625
+659.00%(1) 2x41,8950(2) ⅝" Machine Bolt0.625
+678.00%(2) 2x44,3500(26) 0.148" x 1½" Nail (N10)0.625
+678.00%(2) 2x44,6700(26) 0.148" x 3" Nail (10d Common)0.625
+678.00%(2) 2x45,0900(26) 0.162" x 2½" Nail (N16)0.625
+678.00%(2) 2x44,5550(26) #10 x 1½" SD Screw0.625
+696.00%(1) 4x45,0900(26) 0.162" x 2½" Nail (N16)0.75
+787.00%(2) 2x44,5650(10) ¼" x 2½" SDS Screw0.625
+811.00%(2) 2x47,0150(13) ¼" x 3" SDS Screw0.625
+940.00%(1) 4x48,4250(16) ¼" x 3 ½" SDS Screw0.875
+940.00%(3) 2x49,3900(16) ¼" x 3 ½" SDS Screw0.875
+944.00%(2) 2x45,6450(14) ¼" x 2½" SDS Screw0.625
+1060.00%(2) 2x47,0150(13) ¼" x 3" SDS Screw0.625
+1138.00%(2) 2x45,4450(26) #10 x 2½" SD Screw0.625
+1159.00%(1) 4x812,9500(23) ¼" x 3 ½" SDS Screw1.00
+1159.00%(1) 4x611,9000(23) ¼" x 3 ½" SDS Screw1.00
+1172.00%(1) 4x44,9350(2) ¾" Machine Bolt0.625
+1172.00%(2) 2x44,5050(2) ¾" Machine Bolt0.625
+1172.00%(1) 2x42,4050(2) ¾" Machine Bolt0.625
+1172.00%(1) 3x43,7500(2) ¾" Machine Bolt0.625
+1293.00%(2) 2x46,1150(34) 0.148" x 1½" Nail (N10)0.75
+1293.00%(2) 2x46,3400(34) #10 x 1½" SD Screw0.75
+1293.00%(2) 2x46,5050(34) 0.162" x 2½" Nail (N16)0.75
+1293.00%(2) 2x47,6500(34) #10 x 2½" SD Screw0.75
+1389.00%(1) 4x46,9700(20) ¼" x 2½" SDS Screw0.875
+1389.00%(2) 2x46,7650(20) ¼" x 2½" SDS Screw0.875
+1389.00%(3) 2x47,8700(20) ¼" x 2½" SDS Screw0.875
+1423.00%(1) 4x48,4250(16) ¼" x 3 ½" SDS Screw0.875
+1423.00%(3) 2x49,3900(16) ¼" x 3 ½" SDS Screw0.875
+1424.00%(1) 4x616,0400(28) ¼" x 4 ½" SDS Screw1.00
+1559.00%(2) 2x46,1150(34) 0.148" x 1½" Nail (N10)0.75
+1559.00%(2) 2x47,6500(34) #10 x 2½" SD Screw0.75
+1559.00%(2) 2x46,3400(34) #10 x 1½" SD Screw0.75
+1559.00%(2) 2x46,5050(34) 0.162" x 2½" Nail (N16)0.75
+1690.00%(1) 4x47,3100(3) ¾" Machine Bolt0.875
+1690.00%(3) 2x47,3450(3) ¾" Machine Bolt0.875
+1690.00%(2) 2x46,6450(3) ¾" Machine Bolt0.875
+1697.00%(1) 4x47,6300(20) ¼" x 3" SDS Screw0.875
+1697.00%(2) 2x45,7150(20) ¼" x 3" SDS Screw0.875
+1697.00%(3) 2x49,2300(20) ¼" x 3" SDS Screw0.875
+1721.00%(1) 4x69,5350(30) ¼" x 2½" SDS Screw1.00
+1721.00%(1) 4x811,1750(30) ¼" x 2½" SDS Screw1.00
+1994.00%(1) 4x69,9200(3) ⅞" Machine Bolt0.875
+1994.00%(1) 4x47,7400(3) ⅞" Machine Bolt0.875
+1994.00%(1) 4x810,0350(3) ⅞" Machine Bolt0.875
+1994.00%(3) 2x49,9200(3) ⅞" Machine Bolt0.875
+2029.00%(1) 4x814,3900(36) ¼" x 2½" SDS Screw1.00
+2029.00%(1) 4x610,7700(36) ¼" x 2½" SDS Screw1.00
+2150.00%(1) 4x611,9000(23) ¼" x 3 ½" SDS Screw1.00
+2150.00%(1) 4x812,9500(23) ¼" x 3 ½" SDS Screw1.00
+2980.00%(1) 4x616,0400(28) ¼" x 4 ½" SDS Screw1.00
+3558.00%(1) 4x411,3500(4) 1" Machine Bolt1.00
+3558.00%(3) 2x412,6650(4) 1" Machine Bolt1.00
+3558.00%(3) 2x413,3350(4) 1" Machine Bolt1.125
+3558.00%(1) 4x411,7750(4) 1" Machine Bolt1.125
+3558.00%(1) 4x815,4350(4) 1" Machine Bolt1.125
+4044.00%(1) 4x611,8100(24) ¼" x 2½" SDS Screw1.00
+4315.00%(1) 4x813,0150(30) ¼" x 2½" SDS Screw1.00
+6359.00%(1) 4x819,3600(5) 1" Machine Bolt1.25
+6359.00%(1) 4x816,7350(5) 1" Machine Bolt1.125
Showing 77 entries

Table Notes

  1. Refer to General Notes for Holdowns and Tension Ties for installation instructions, best practices and recommendations by Simpson Strong-Tie.
  2. For installations in severe corrosion environments, refer to General Corrosion Risks for additional considerations.
  3. HDU14 requires heavy-hex anchor nut to achieve tabulated loads (supplied with holdown).
  4. Allowable load for HTT5 with 0.162"x1 1/2" fasteners and a BP5/8-2 bearing-plate washer installed in the seat of the holdown is 5,295 lb. for DF/SP and 4,555 lb. for SPF/HF.
  5. To achieve published loads, machine bolts shall be installed with the nut on the opposite side of the holdown. If this orientation is reversed, the Designer shall reduce the allowable loads shown per NDS requirements when bolt threads are in the shear plane.
  6. The HTT5-3⁄4 is designed to use a ¾"-diameter anchor bolt.
  7. Lag or carriage bolts are not permitted.
  8. HTT5KT is sold as a kit with the holdown, bearing plate washer and Strong-Drive SD Connector screws.
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