Should I use lag bolts or wood screws?

Question

I'm redoing my house due to many issues including plumbing. When I took out the ceiling below the upstairs bathroom I discovered they took out massive chunks of the floor joists so I need to reinforce them. I'm going to drop the ceiling a little so I can run plumbing correctly. Should I use lag bolts to  secure the reinforcement beams to the old ones or can I use deck screws?

? · Answer

Lags all day every day and twice on sunday.  also add some liquid nail.  Once that stuff dries you basically have one piece of wood there.

Anonymous · Answer

What does your heart tell you?  Go with that Steel is steel.

Marvinator · Answer

I would use liquid nails and construction screws. A couple of years ago I had to rip out a 12 x 12 section of my house and replace after termites were found. I used nothing but construction screws. I did this on the advice of my neighbor who works in construction.

https://www.lowes.com/pd/Grip-Rite-8-x-2-in-Gold-Y...

https://www.lowes.com/pd/Grip-Rite-8-x-2-in-Gold-Yellow-Zinc-Bugle-Interior-Wood-Screws-1-lb/1000075771

Anonymous · Answer

Either will work but I would also use some Liquid Nails as well as insurance. You can use fewer lag bolts than screws

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Should I use lag bolts or wood screws?

4 Answers