With attic trusses, it is achievable to span wider distances on to external load-bearing walls, depending upon the dimensions in the place or sought after span. Piles tend to be set up along with bridge abutments to provide the solid foundational assistance to resist the burden on the structure over. https://directoryholiday.com/listings13025624/the-ultimate-guide-to-prefabricated-roof-trusses-prices