Engineering Center

Specification is requesting it.

A 1-HR rated, metal stud, gypsum board wall (U419) has been installed in a Pre-Engineered Metal Building and two of the main framing members penetrate through the wall about 8 below the top of the wall. The members are W shaped, 28 deep, .188 thick web with 8 wide and 3/8 thick top and bottom flanges. The contractor cut the gy...

I attended a live webinar on Tuesday. How do I get PDH credit for this? Is there a certificate that you can send me?

I attended Roof Deck Connections & The Factors That Affect Performance (DCK101) - Webinar on 6/9/2026 but have not received a link to quiz.

I believe I have to take a quiz to receive the PDH credit. I attended the webinar yesterday and recieved an email that I attended but there was no mention of a quiz. Can you please let me know if I need to take a quiz and where I need to go? Thanks, Nicole

Equipment post base

We are requesting guidance regarding field load testing of reinforcing dowels intended to be installed in accordance with Hilti HIT RE 500-V3 (ESR-3814). The specified installation consisted of #6 reinforcing bars embedded 9 inches into the edge face of an existing 14-inch-deep concrete footing. Structural Notes required core...

Hi We are reviewing firestop requirements for insulated mechanical pipe penetrations on the confidential project and would like to confirm available tested systems. Please confirm whether Hilti has a tested and listed through-penetration firestop system (UL 1479 / ASTM E814) achieving both F and T ratings for the following...

What position does the pin need to be place to press it from the chuck?

Does the HAS-E-55 material meet ASTM F1554 S1 weldability supplement? Thank you.