Adjustable Support Jacks

FastJax

• 12 inch adjustable tops
  50 or 100 ton yield strength
  available in 6" increments from 4' to 9' high
  can be fitted with yieldable dish, yolk to suit box beam or flat plate top
  no loose pieces or grout bags

RBS Posts ^TM 

• 6 or 9 inch adjustable tops
  90 ton yield element
  10 ton setting load
  diameters available from 6 to 10 inches
  no loose pieces or grout bags 

Big John Posts ^TM 

• 6 or 9 inch adjustable tops
  capacity p to 140 tons for an 84 inch post laminated construction in 2, 3, or 4 pieces
  single specie oak columns
  10 ton setting load
  no loose pieces or wedges
  90 ton yield load element
  stacks well for reduced transport costs
  can be mechanically lifted