Plywood Vs OSB

[bcubed]

Hell with plywood...where do I get that cannon!

[robnowe]

If strength comparison is the goal, both the plywood and the OSB s/b the same thickness. 5/8" plywood and 5/8" OSB. Having said that, I believe there are ply variants within the category of plywood (3, 5, and 7?) and the number of plies affects the strength and I believe the cost. It would be interesting to identify the most common plywood available for the purpose and the other variants and compare their strength. Bottomline is this test needs more breadth of product. IMO

[Darin-USMCB--]

Plus use osb vs plywood for subfloor,
People use osb on roofs as well...
Plywood gets wet, it may buckle, or one top layer raise up, but often when it dries out, it will go back down, at least partly, osb gets wet, it swell up like a sponge, separating all the strands that had been held together by adhesives, them when it dries out, it often flakes apart, I've seen it almost disintegrated like sawdust.
I use it occasionally, just because of the huge cost difference, but when quality counts, and budget allows-
I always choose plywood.

[mitchellbuss]

How about comparing 5/8 to 5/8 instead of 7/16 to 5/8 garbage test.

[corentinoger]

An honest comparison would be to use "same cost" boards, to see which has the best value.

[petset]

Plywood has the strength of full wood fibers glued 90 degrees from previous layers, so equal thickness to equal thickness, is probably stronger than what was developed to utilize waste material and market it as a "building product" (OSB). That said, the test isn't equal size to equal size. It's skewed toward favoring the plywood. Added to that, nominal 1/2" OSB is 7/16" thick. Why not go to 3/4" OSB, which is also readily available, yet obviously more expensive than cheap roof decking? Or at least use 1/2" CDX sheathing grade ply to be at least similar to the OSB. Since the video favors one material over another while touting one's strength qualities over the other, why not compare "Hardwood" plywood? How about comparing 1/4" birch, lauan, or oak to 5/8 or even 1/2 ply (or even 7/16 OSB). It's hardwood after all, and some might ignore the thickness as the 2x4 blasts through (yeah, the alleged comparison is about going about a job on the cheap, but what point is more valid?). Sorry for going on so long, but as others commented here, it's not a fair test at all.

[markhansen]

I never board up. Never had a window break, but I’ve had big insurance claims four times. Always ended up with money to spare. Just buy good insurance and get out of town early.

[mcl]

The comparison should be for the same thickness of material, otherwise some strength is associated to that parameter, or compare the same price elements and analyze damage

[chrissimpletown]

When in doubt, go with spongeboard OSB. It's the quicker pickerupper. It stops the rain from running down to the foundation.

[derikjbrandt]

Hmmm, let's compare 5/8 to 1/2 inch and see which one is stronger. How about doing a test to see how thick OSB needs to be to give the same protection as plywood (whether it turns out to be 5/8 = 5/8 or not) then a homeowner can go to the store, look at two products that will provide the same protection for their home and buy the one that costs them less. That would be a useful experiment.

[smac]

I get the purpose of the test using the 7/16 osb. I would really like to see how 5/8 Advantech would hold up to the 2x4. Not that it is any cheaper then cdx but would be a neat comparison of strength

[kdigiacomo]

1:54 "It's remarkable how a thicker material is so much stronger than than a thinner material".
😲🙄🙄

[HsingSun]

Thank you for this video. I am going to use plywood to build my shed.

[RBush-idzm]

Wait, you just stated the building code states the covering "must be 5/8" thick" and then proceeded to use 1/2" thick OSB/particle board. Someone needs to learn fractions.

[scottd]

They are not comparing the same thickness of panels. That is an invalid test.... TOH should know better.

[jasono.]

This is why I asked my roofer to use plywood instead of osb, and paid an extra $700 for it. Do your research, use quality materials, don’t go with cheap n’ weak osb for your roof sheathing.

[ConradCraft]

This is the same reason Skateboards are not made from OSB... Even though it would be easy and cheaper. They are made from Plywood construction....plywood is way more resilient under flexing pressure and stronger by far in all directions of stress... and it holds its integrity when exposed to water... Like the rain in a storm. It's unfortunate they didn't use the same exact thickness pieces... But this was a qualitative demonstration... Not a quantitative test... It is still an accurate representation of the difference between the two materials IMOP. PS... GOOGLE pics of 2x4s thrown by tornadoes and hurricanes...

[robalan]

How does an inch of OSB compare to a half inch of plywood or some other combination of them or maybe OSB with paneling compared to plywood? There is a really big difference in price.

[ShannonSmithu]

Very odd test. Most panel products are scant, 1/2" plywood is actually 15/32" and OSB is 7/16", 3/4" is really 23/32", not sure who wrote this test but they need to be more accurate.

[toddrhine]

I'm looking for a type of wood for a subfloor that can withstand large amounts of water from underneath to uptop. What would you advise me to look for, make ect? Thx much for your expertise.