3 in OD 11 ga (0.120 in wall). 4 in adjustment. Cold rolled steel screw. Turning bar provided with each post. Flow-coated inside and out with red corrosion-resistant paint. Heavy-duty cap and base plates slotted. Holes to fit steel or wood beams. Embossed lugs grip posts firmly to avoid slipping. All parts are welded or wired together.

3 in OD 11 ge (0.120 in wall). 4 in adjustment. Cold rolled steel screw. Turning bar provided with each post. Flow-coated inside and out with red corrosion-resistant paint. Heavy-duty cap and base plates slotted. Holes to fit steel or wood beams. Embossed lugs grip posts firmly to avoid slipping. All parts are welded or wired together.

Extend-O-Posts are ideal for temporarily reinforcing existing floors under heavy load areas, but are not recommended for permanent supports in new construction. There's nothing easier to use for supporting sagging floors, weak beams and warping stairways. With Extend-O-Posts the possibilities are unlimited.

Extend-O-Posts are ideal for temporarily reinforcing existing floors under heavy load areas, but are not recommended for permanent supports in new construction. There's nothing easier to use for supporting sagging floors, weak beams and warping stairways. With Extend-O-Posts the possibilities are unlimited.

Extend-O-Posts are ideal for temporarily reinforcing existing floors under heavy load areas, but are not recommended for permanent supports in new construction. There's nothing easier to use for supporting sagging floors, weak beams and warping stairways. With Extend-O-Posts the possibilities are unlimited.

3 in OD 11 ga (0.120 in wall). 4 in adjustment. Cold rolled steel screw. Turning bar provided with each post. Flow-coated inside and out with red corrosion-resistant paint. Heavy-duty cap and base plates slotted. Holes to fit steel or wood beams. Embossed lugs grip posts firmly to avoid slipping. All parts are welded or wired together.

Extend-O-Posts are ideal for temporarily reinforcing existing floors under heavy load areas, but are not recommended for permanent supports in new construction. There's nothing easier to use for supporting sagging floors, weak beams and warping stairways. With Extend-O-Posts the possibilities are unlimited.

Extend-O-Posts are ideal for temporarily reinforcing existing floors under heavy load areas, but are not recommended for permanent supports in new construction. There's nothing easier to use for supporting sagging floors, weak beams and warping stairways. With Extend-O-Posts the possibilities are unlimited.

Extend-O-Posts are ideal for temporarily reinforcing existing floors under heavy load areas, but are not recommended for permanent supports in new construction. There's nothing easier to use for supporting sagging floors, weak beams and warping stairways. With Extend-O-Posts the possibilities are unlimited.