MFS Enterprises

Midwest Foundation Supply

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Impact Manufacturing


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Adjustable Jack Posts

Frequently Asked Questions

Up to 4 inches. Anything over that please get a bigger post.

We typically cut our pipe when building a jack post 3 inches smaller then the size of the post needed. This allows the Plate and Adjuster to fit snugly. Example: If you need a 75 inch post cut the pipe 72 inches.

Load Strength : 3 inch O.D. 11 Gauge Steel Tubing
  Adjustment Range Adjustment Range Allowable Strength Load. Design Strength Load. Unit Weight
6' - 6' 4 " 72 - 76" 13,500 lbs. 20,300 lbs. 28 lbs.
6' 3 - 6' 7" 75 - 79" 13,300 lbs. 19,900 lbs. 29 lbs.
6' 6 - 6' 10" 78 - 82" 13,000 lbs. 19,500 lbs. 30 lbs.
6' 9 - 7' 1" 81 - 85" 12,700 lbs. 19,100 lbs. 31 lbs.
7' - 7' 4 " 84 - 88" 12,400 lbs. 18,600 lbs. 32 lbs.
7' 3 - 7' 7" 87 - 91" 12,100 lbs. 18,200 lbs. 33 lbs.
7' 6 - 7' 10" 90 - 94" 11,800 lbs. 17,700 lbs. 34 lbs.
7' 9 - 8' 1" 93 - 97" 11,500 lbs. 17,300 lbs. 35 lbs.
8' - 8' 4 " 96 - 100 " 11,200 lbs. 16,800 lbs. 35 lbs.
8' 3 - 8' 7" 99 - 103" 10,900 lbs. 16,300 lbs. 36 lbs.
8' 6 - 8' 10" 102 - 106" 10,600 lbs. 15,900 lbs. 37 lbs.
8' 9 - 9' 1" 105 - 109" 10,200 lbs. 15,400 lbs. 38 lbs.
9' - 9' 4 " 108 - 112" 9,900 lbs. 14,900 lbs. 39 lbs.
9' 3 - 9' 7" 111 - 115" 9,600 lbs. 14,400 lbs. 40 lbs.
9' 6 - 9' 10" 114 - 118" 9,300 lbs. 14,000 lbs. 41 lbs.
9' 9 - 10' 1" 117 - 121" 9,000 lbs. 13,500 lbs. 42 lbs.
10' - 10' 4 " 120 - 124" 8,700 lbs. 13,000 lbs. 43 lbs.
10' 3 - 10' 7" 123 - 127" 8,300 lbs. 12,500 lbs. 47 lbs.
10' 6 - 10' 10" 126 - 130" 8,000 lbs. 12,100 lbs. 49 lbs.
10' 9 - 11' 1" 129 - 133" 7,700 lbs. 11,600 lbs. 50 lbs.
11' - 11' 4 " 132 - 136" 7,400 lbs. 11,100 lbs. 51 lbs.
11' 3 - 11' 7" 135 - 139" 7,100 lbs. 10,700 lbs. 52 lbs.
11' 6 - 11' 10" 138 - 142" 6,800 lbs. 10,200 lbs. 53 lbs.
11' 9 - 12' 1" 141 - 145" 6,600 lbs. 10,000 lbs. 54 lbs.
Specs. and Info.






DIY 3 inch 11 Gauge Jack Post Adjuster
DIY 3 inch 11 Gauge Jack Post Adjuster
  • Part Number:112006-IM
  • Sold As : 1 Each

  • $25.74
    • DIY 3-1/2 inch Schedule 40 Jack Post Adjuster
    DIY 3-1/2 inch Schedule 40 Jack Post Adjuster
  • Part Number:112007-IM
  • Sold As : 1 Each

  • $30.89
    • DIY H Plate for Jack Post
    DIY H Plate for Jack Post
  • Part Number:112009-IM
  • Sold As : 1 Each

  • $8.23
    • DIY 3 inch 11 Gauge Jack Post Adjuster with H Plate
    DIY 3 inch 11 Gauge Jack Post Adjuster with H Plate
  • Part Number:112010-IM
  • Sold As : 1 Each

  • $29.86
    • DIY 3-1/2 inch Schedule 40 Jack Post Adjuster with H Plate
    DIY 3-1/2 inch Schedule 40 Jack Post Adjuster with H Plate
  • Part Number:112011-IM
  • Sold As : 1 Each

  • $33.98
    • 3 In Adjustable Column 6 Ft - 6 Ft 4In / 72 In - 76 In
    3 In Adjustable Column 6 Ft - 6 Ft 4In / 72 In - 76 In
  • Part Number:111610-MF
  • Sold As : 1 Each

  • $72.10
    • 3 In Adjustable Column 6 Ft 3 In - 6 Ft 7 In / 75 In - 79 In
    3 In Adjustable Column 6 Ft 3 In - 6 Ft 7 In / 75 In - 79 In
  • Part Number:111611-MF
  • Sold As : 1 Each

  • $72.62
    • 3 In Adjustable Column 7 Ft - 7 Ft 4 In / 84 In - 88 In
    3 In Adjustable Column 7 Ft - 7 Ft 4 In / 84 In - 88 In
  • Part Number:111614-MF
  • Sold As : 1 Each

  • $74.16
    • 3 In Adjustable Column 7 Ft 6 In - 7 Ft 10 In / 90 In - 94 In
    3 In Adjustable Column 7 Ft 6 In - 7 Ft 10 In / 90 In - 94 In
  • Part Number:111616-MF
  • Sold As : 1 Each

  • $75.19
    • 3 In Adjustable Column 8 Ft - 8 Ft 4 In / 96 In - 100 In
    3 In Adjustable Column 8 Ft - 8 Ft 4 In / 96 In - 100 In
  • Part Number:111618-MF
  • Sold As : 1 Each

  • $76.22
    • 3 In Adjustable Column 1 Ft 4 In - 1 Ft 8 In / 16 In - 20 In
    3 In Adjustable Column 1 Ft 4 In - 1 Ft 8 In / 16 In - 20 In
  • Part Number:111619-MF
  • Sold As : 1 Each

  • $63.86
    • 3 In Adjustable Column 2 Ft - 2 Ft 4 In / 24 In - 28 In
    3 In Adjustable Column 2 Ft - 2 Ft 4 In / 24 In - 28 In
  • Part Number:111620-MF
  • Sold As : 1 Each

  • $66.95
    • 3 In Adjustable Column 2 Ft 4 In - 2 Ft 8 In / 28 In - 32 In
    3 In Adjustable Column 2 Ft 4 In - 2 Ft 8 In / 28 In - 32 In
  • Part Number:111621-MF
  • Sold As : 1 Each

  • $67.47
    • 3 In Adjustable Column 2 Ft 8 In - 3 Ft / 32 In - 36 In
    3 In Adjustable Column 2 Ft 8 In - 3 Ft / 32 In - 36 In
  • Part Number:111622-MF
  • Sold As : 1 Each

  • $67.98
    • 3 In Adjustable Column 3 Ft - 3 Ft 4 In / 36 In - 40 In
    3 In Adjustable Column 3 Ft - 3 Ft 4 In / 36 In - 40 In
  • Part Number:111623-MF
  • Sold As : 1 Each

  • $68.50
    • 3 In Adjustable Column 3 Ft 4 In - 3 Ft 8 In / 40 In - 44 In
    3 In Adjustable Column 3 Ft 4 In - 3 Ft 8 In / 40 In - 44 In
  • Part Number:111624-MF
  • Sold As : 1 Each

  • $69.01
    • 3 In Adjustable Column 3 Ft 8 In - 4 Ft / 44 In - 48 In
    3 In Adjustable Column 3 Ft 8 In - 4 Ft / 44 In - 48 In
  • Part Number:111625-MF
  • Sold As : 1 Each

  • $70.04
    • 3 inch Adjustable Column 6 Ft 9 In -7 Ft 1 In / 81 In - 85 In
    3 inch Adjustable Column 6 Ft 9 In -7 Ft 1 In / 81 In - 85 In
  • Part Number:111860-MF
  • Sold As : 1 Each

  • $60.76
    • 3 inch Adjustable Column 7 Ft 3 In -7 Ft 7 In / 87 In - 91 In
    3 inch Adjustable Column 7 Ft 3 In -7 Ft 7 In / 87 In - 91 In
  • Part Number:111861-MF
  • Sold As : 1 Each

  • $64.88
    • 3 inch Adjustable Column 7 Ft 9 In 8 Ft 1 In / 93 In- 97 In
    3 inch Adjustable Column 7 Ft 9 In 8 Ft 1 In / 93 In- 97 In
  • Part Number:111862-MF
  • Sold As : 1 Each

  • $67.97
    • 3 inch Adjustable Column 6 Ft 6 In - 6 Ft 10 In / 78 In - 82 In
    3 inch Adjustable Column 6 Ft 6 In - 6 Ft 10 In / 78 In - 82 In
  • Part Number:111863-MF
  • Sold As : 1 Each

  • $58.70
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