If you ever need to support something in construction work, using post shores is the most common method to achieve this. Post shores, or Lally column as they’re also called are made to extend out and to handle thousands of pounds in load. There are many different manufacturers on the market but the design is fairly similar. Find the one that suits you best by comparing load capabilities, length, price and availability.
You can find several models of Heavy Duty Post Shores and prices on the website for Scaffold USA.