Beam Size

**DvdHntr** · 29th October 2007, 03:40 PM

Originally Posted by srohara

Ended up using a 240 x 63 LVL and encasing it in blue board

When spanning beams like that I would have preferred an LVL also. Probably would have gone for a 300x63 LVL though.

**pawnhead** · 29th October 2007, 09:57 PM

Originally Posted by DvdHntr

Probably would have gone for a 300x63 LVL though.

Why put in more than you have to?
According to the tables he's alright, and I'm sure there's plenty of margin before any failure. At least 2:1 I'd imagine, but probably a whole lot more than that.

**DvdHntr** · 30th October 2007, 09:04 AM

Originally Posted by pawnhead

Why put in more than you have to?
According to the tables he's alright, and I'm sure there's plenty of margin before any failure. At least 2:1 I'd imagine, but probably a whole lot more than that.

I just like to have very limited deflection over openings like that. Plus without the table that was my first guess. If I had a proper look at it and the 240 was less than 8mm deflection long term, I would have went for it.

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