Engineering Center

looking for strongest 1/2" lag

Can the ledger angle show more than 2 anchors?

Are there any specific anchor or drilling requirements when fastening to an existing concrete surface that shows significant spalling or a lack/loss of consolidation (aggregates crumbling on concrete surface)?

Why is the minimum member thickness for a 3/4" KWIK HUS-EZ 6 inches? What failure mechanism is controlling this?

Working on a new two story dorm with cmu walls , composite floor deck, and steel roof trusses. Corridor walls (fire rated) extend up to composite deck on first floor. Composite deck forms a 1 hour rating (versadek).  On second floor, rated corridor walls extend up to a 1 hour roof ceiling assembly with layer of gyp attached...

what type of fastener is needed to attach metal framing to the bottom of metal deck with concrete infill?

We have 4c 750 MCM MC Cable and need a UL for 1 hour gyp wall and concrete floor 8" thick

The CFS-TTS Top Track Seal seems like the perfect product for my application, but it doesn't seem to be acceptable for floor tracks. What is the reason that it can't be used for concrete floor/ stud wall floor joints on non-bearing walls? Additionally, are there other products that could be installed on the base of modular wal...

I have to design a base plate with post installed anchors in a concrete column which has fc'=10 ksi. Profis warns that anchors are available up to 8 ksi of concrete strength. Are there any post installed anchors that can be used for this?

I uploaded & modified a file that has a different Co & User name. How can I edit these parameters. Also, can I download Profis?