Important Notice: Our web hosting provider recently started charging us for additional visits, which was unexpected. In response, we're seeking donations. Depending on the situation, we may explore different monetization options for our Community and Expert Contributors. It's crucial to provide more returns for their expertise and offer more Expert Validated Answers or AI Validated Answers. Learn more about our hosting issue here.

Can a 60 minute doorset be hung in a softwood frame?

April 26, 2017doorset frame hung Minute softwood

0

Posted

Can a 60 minute doorset be hung in a softwood frame?

1 Answer

0

Posted

In practice it is very difficult to pass a 60 minute fire test using a softwood frame, simply because it chars more quickly than most hardwoods. For this reason dense hardwoods are usually used, but softwood would be permissible if it were supported by appropriate test evidence.