More economical - timber or glulam
More economical - timber or glulam
(OP)
I have a renovation that will use members about 20" long holding up roof loads. I have 3x12 timber as the joists. Does anyone know if using comparable glulam members is more or less expensive? The project is in the southern US.






RE: More economical - timber or glulam
Have you considered LVL or wood I-joists??
RE: More economical - timber or glulam
RE: More economical - timber or glulam
RE: More economical - timber or glulam
RE: More economical - timber or glulam
Large southern yellow pine beams will be simular in cost (if you can find them). Many large beams will be air dried and will shrink and check in service. When we ordered large 12x12 SYP beams they all were different size and many had bark on corners.
RE: More economical - timber or glulam
By the way, I assume you mean 20' long, not 20" long.
With GL members you could probably get away with 3.125 X 12's, or PSL 3.5 X 11.5 or 11.875, depending on your insulation depth requirements for the roof. I don't think they make the 2 11/16 sections any more.
Mike McCann
MMC Engineering
Motto: KISS
Motivation: Don't ask
RE: More economical - timber or glulam
Garth Dreger PE
AZ Phoenix area
RE: More economical - timber or glulam
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RE: More economical - timber or glulam
RE: More economical - timber or glulam
RE: More economical - timber or glulam