Quote:
Originally Posted by Gogar
slightly unrelated,
How 'tall' would you want the pergola to be?
Most of the metal pergola mfrs only do 8'
I did find one that 10' which was right about what I needed to clear my windows.
So . . if you need it tall you might be out of luck anyway with the metal prefab things.
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The bottom of my header beam will be at 102". The Luxury Pergola co makes a 9' model if I choose to go the aluminum route. I can cut the posts down to make the top whatever height works for my application.
Quote:
Originally Posted by 908/930
I think Pacific Woodtech has a weatherproof LVL, could possibly use Glulam beam. They will be covered under the roof? Check what your required snow load is. If I understood correctly you want to span 14' with a 4x6 that sounds way too small to me but your codes are different.
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I found Pacific Woodtech when searching treated LVL's. I was hoping to find someone local. I called a local yard yesterday. They are going to get me a price on treated LVL and then price LVL with a stainable wrap to conceal the LVL.
Quote:
Originally Posted by look 171
Solid lumber would be my choice if they are exposed to the element but I much prefer Gluelam for a much better look then LVL. All engineering lumber is more stable compare to lumber. If they go under a roof, gluelam is the way to go. Stains nicely especially dark color and being way up there. I suggest coat it with flat (for the natural look )or semi gloss poly. Paint the exterior tails to keep from the element if its under a eave. They do cost more compared to lumber.
Look at rafter table to get the correct timber size or call your local lumber yard, not HOme Depot since those guys have no clue, and they will have the correct size for you. My kids and I built our second story deck using treated 4x8, 18' span, 12" center. I wanted to eliminate bounce. Painted the underside for protection.
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I checked snow load and used a span calculator. At 24" OC a 4x6 DF is rated at a max span of 16'11" for a 20lb snow load. I'll be at 22oc so good to go there! Thanks for the suggestion.
https://plib.org/resources/calculators/max-span/
I'm not a fan of gluelam beams I'd rather wrap them than have the appearance of a bunch of 2x4's stacked together.