7/16" OSB
7/16" OSB
(OP)
Does anyone know if 7/16" OSB meets the the APA requirements for Structural 1 grade? Also, the NDS is fairly vague as to what the requirements are to meet the Structural 1 standard. Does anyone know what those requirements are?





RE: 7/16" OSB
Also, the thinnest panel that would be Structural I rated would be 19/32".
Our lumberyard doesn't stock Structural I. We have ordered it on occasion when a contractor required it. We're in Maryland where shearwalls aren't typically utilized.
RE: 7/16" OSB
Structural 1 OSB although not common, is ussually available in the Mid West.
Unless you are on the West Coast Structural 1 Plywood is next to impossible if not impossible to get. The firm I work for is in Minnesota. The last time we inquired about obtaining Structural 1 Plywood no one would even quote us a price.
Based on past and present experience, I would never specifiy Structural 1 Plywood or OSB unless I was assured by a supplier in the project area that it was available.
RE: 7/16" OSB
RE: 7/16" OSB
i'm interested to hear what they say.
RE: 7/16" OSB
If the standard in the market is 19/32" then you aren't going to find any one who will make a small quanity of 7/16. With most mills they are running such a large quanity of material each day that it just is not ecconomic for them to turn out a small amount of custom material.
RE: 7/16" OSB
Theoretically, couldn't this be done with a variation on the recipe of resin used in the board?
The thinnest Struct I that I'm aware of is 15/32" sheathing.
RE: 7/16" OSB
If you can get 15/32" Struc I, use it. 1/32 of an inch will not make any difference.
RE: 7/16" OSB
But the suggestion to use the thicker Struc I panel should be safe