Adjustable steel columns, also called jack posts or lally columns, can be installed in basements and crawl spaces to support sagging floors or can be used as a fulcrum beneath heavy appliances. Though ...

Current beam appears original to house (approx 100 year age), (4) 2"x10"s, aligned vertically. Current beam has (3) staggered adjustable steel columns, placed between 8' and 10' along span. Cupping of ...