FAQ: What Size Plywood For Shed Roof?

Can I use 1/2 inch plywood for shed roof?

If the shed is for light tools then 1/2 inch pressure treated plywood is acceptable. If the shed is for heavier storage, then pressure treated 3/4 inch exterior-grade CDX plywood is the best.

What kind of plywood do you use for a shed roof?

CDX plywood is the most economical choice for decking your shed. For those of you that don’t know, CDX means that the plywood has a C face and a D face (A being the best). The X means that is has exterior grade glue. As long as this plywood doesn’t see any long term moisture it should work just fine.

What size plywood should be used for roofing?

The most common rafter spacing is 24 inches, and 5/8-inch plywood is recommended for that. It will support roof loads for most situations and is the standard for most roof applications. Roofs with very heavy loads may require 3/4-inch thickness.

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Is 11mm OSB OK for shed roof?

For heavy duty roofing, you may want to opt for an 11mm tongue and groove roof, additional roof trusses can offer even more support for your shed roof. For an inexpensive, value option 9mm OSB can be used for your garden shed roof.

Can I use plywood for shed roof?

Re: What thickness of plywood for shed roof? Shed kits from shed shops tend to use 12mm OSB because it’s cheap. which should lead your thinking to “Will the walls take the load?” If you have 18mm ply, and it’s WBP ply, and you’re not planning to garden on top of it, then it will do the job.

Should I use OSB or plywood for roof?

OSB takes longer than plywood to get saturated, but also takes much longer to dry out. When used as roof sheathing, this tendency to hold moisture means it will degrade faster than plywood when exposed to chronic leaks.

What is the best wood to use for a shed roof?

Cedar or pine shingles can really be a lovely addition to your garden shed. Any type of wood shingle is going to be durable against most weather elements your shed will encounter. The natural use of wood for the roof can be a great choice, but there are some points to keep in mind. Wood shingles are not waterproof.

What’s the best wood for a shed roof?

Oriented strand board (OSB) is the least expensive option for sheathing the walls and roof of a shed, which is why it’s used so often for sheds and homes. OSB is made of chips of softwood glued together in a semi-random pattern. As with plywood, OSB typically comes in 4 ft.

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Is CDX plywood good for roofing?

Only use CDX plywood for the interior of a house, where water damage is far less likely. Do not use CDX for roofing, sheds, or other places that are exposed to moisture consistently. The sole exception to this is pressure treated CDX, which can survive for decades without even a protective coating.

Which is stronger OSB or plywood?

Osb is stronger than plywood in shear. Shear values, through its thickness, are about 2 times greater than plywood. This is one of the reasons osb is used for webs of wooden I-joists. However, nail-holding ability controls performance in shear wall applications.

Can you put plywood over plywood on roof?

The new plywood will have to be nailed to the rafters or roof trusses. But, with the old plywood left in place, it will be considerably more difficult to locate the rafters to ensure proper nail placement.

What thickness OSB for a shed roof?

The thickness of OSB that you need varies on where it is used in a building. Typically 3/4″(18mm) for floors and 3/8″ (9mm) for walls and 1/2″ (11mm) roof. Also make sure that you get your supporting timbers at the correct spacing.

Can I build a shed with OSB?

Using Oriented Strand Board is a tested way of reducing costs for building your shed. Plywood with similar properties currently costs about 30% more for an equivalent thickness.

What is the cheapest way to roof a shed?

In most cases, MSR roll roofing is the cheapest shed roof material you can buy. Roll roofing is also the easiest shed roof to install because you can cover large areas quickly by simply rolling it out and nailing it down.

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