Column Pipe For Sale

All basement support columns are manufactured to be installed vertically plumb with either end up and on a footing capable of carrying the imposed load. The compressive strength and allowable safe loads are not affected whether the adjustable screw unit is installed on the top or bottom of the column or whether or not it is encased in concrete after installation is complete.

These support columns are intended ONLY for vertical compression loads. They have not been evaluated for lateral or tension loading.

The Standard-Duty (S.D.) models are fabricated from 11 gage (.120″) welded carbon and alloy steel mechanical tubing produced in accordance with ASTM A 513. The S.D. models are available in diameters of 3″, 3-1/2″ and 4″ with lengths of 8″ to 168″ (14 feet). The Jack Screw diameter is 1-1/4″.

The Heavy-Duty (H.D.) models are fabricated from schedule 40 (.216″) steel pipe produced in accordance with ASTM A 500 Grade B or better (structural). The H.D. models are available in diameters of 3″ S-40 pipe (3.5″ O.D.) wall thickness is (.216″), 3-1/2″ S-40 pipe (4″ O.D.) wall thickness (.226″) with lengths of 8″ to 168″ (14 feet). The Jack Screw diameter is 1-1/4″.

The Standard-Duty and Heavy-Duty Adjustable (Qwik-Adjust) steel support columns are fabricated with an adjustable screw unit welded to one end of the tube or pipe and a steel plate welded to the other.

The Standard-Duty, Extreme-Duty, Heavy-Duty and Fixed (Qwik-Post) columns are fabricated with a steel plate welded to each end of a steel tube or pipe. The style, size and shape of the base plate and cap plate may vary depending on customer requirements.

The Extreme Duty (E.D.) models are fabricated from schedule 40 pipe steel pipe produced in accordance with ASTM A 500 Grade B or better (structural). The E.D. models are available in diameters of 3-1/2″ (3.5″ O.D.) wall thickness (.216″) and 4″ (4″ O.D.) wall thickness (.226″) with lengths of 8″ to 168″ (14 feet). The Jack Screw diameter is 1-1/2″.

The Adjustable Screw Unit Assembly includes a screw collar (nut), a screw stud (bolt) and an attached swivel plate. The screw collar and stud are machined from SAE 1215 steel. The screw thread size is 1-1/4″ – 7 on the Standard Duty (S.D.) and Heavy Duty (H.D.) models and is 1-1/2″ – 6 on the Extreme Duty (E.D.) models. The screw has a maximum adjustment of 4″ and a built-in safety stop to prevent over adjusting.

The Cap Plate and/or Base Plate may vary in style, size, shape and thickness. These variables may be controlled by local codes, code officials, methods of attachment to a load carrying member or footing pad or individual customer requirements. Therefore, the base plate and cap plate sizing, method of attachment and all anchoring fasteners are the responsibility of the purchaser and installer of these products. 

The tables bellows indicates allowable concentric loads for steel pipe columns:

Standard Steel Pipe

 

  Nominal   Pipe Diameter
   (inches)

  

 

   Wall    Thickness
   (inches)

  

  

Effective    Length of Column
   (feet)

 

  

6

  

  

8

  

  

10

  

  

12

  

  

14

  

  

16

  

  

18

  

  

20

  

 

Allowable    Concentric Loads 103 (lbf)

 

3

0.216

38

34

28

22

16

12

10

 

3   1/2

0.226

48

44

38

32

25

19

15

12

4

0.237

59

54

49

43

36

29

23

19

5

0.257

83

78

73

68

61

55

47

39

6

0.280

110

106

101

95

89

82

75

67

8

0.322

171

166

161

155

149

142

135

127

10

0.365

246

241

235

229

223

216

209

201

12

0.375

303

299

293

288

282

275

268

261

  • 1      lbf (Pound force) = 4.45 N = 0.45 kp

Extra Strong Steel Pipe                               

 Nominal    Pipe Diameter
   (inches)   
   Wall    Thickness
   (inches)  
 

Effective    Length of Column
   (feet)

 

  

6

  

  

8

  

  

10

  

  

12

  

  

14

  

  

16

  

  

18

  

  

20

  

 

Allowable    Concentric Loads 103 (lbf)

 

3

0.300

52

45

37

28

21

16

12

 

3   1/2

0.318

66

59

51

43

33

25

20

16

4

0.337

81

75

67

59

49

39

31

25

5

0.375

118

111

103

95

86

76

65

54

6

0.432

166

159

151

142

132

122

111

99

8

0.500

259

251

243

234

224

214

203

191

10

0.500

332

325

318

309

301

291

281

271

12

0.500

400

394

387

379

371

363

353

344

Note that the effective column length depends on the column configuration. The values above is valid for columns with rotation free and translation fixed in both ends.