A floor mounted column used when wall installation of a P.T. Rail™ is not possible or desirable. Height adjustable up to 36"/91cm from floor to top rail. P.T.Rail™ (Sold Seperately)Weight Capacity: 400lbs Height: 39”/99cm. Floor Mast Clamp Plate: 3.5x15”/9x38cm. Floor Mast Base Plate: 4.25x6.25”/11x16cm.