I'm looking at two types of screws for framing my interior walls. Home Depot has deck screws (#8 x 3-inch Square Drive Flat Head Deck Screw) for $24.88 for a box of 1000, which seems like a good deal compared to the construction screws (#8 x 3-inch Flat Head Square Drive) for $23.98 for just 250. I'm curious whether building codes allow using deck screws for this purpose and if so, what are the pros and cons? This is in Ottawa, Ontario, so I'm especially interested in any local code requirements.
3 Answers
In general, using nails for framing is the go-to recommendation because screws can shear and break under tension while nails bend. I'm not super familiar with building codes since I'm an electrician, but I think nails are your best bet for structural integrity. Also, for smaller DIY projects or non-structural elements, folks sometimes use screws, but it's still not the preferred choice for framing.
To clarify, the building code doesn't permit deck screws for framing. According to the Ontario building code, specific nails are listed as the appropriate fasteners. If you must use screws, they need to meet certain requirements, and deck screws typically don't cut it. If your wall isn't load-bearing, using deck screws might be fine, but for compliance and safety, sticking with the correct screws is a smart move.
Exactly! If you're concerned about inspections, just stick with what's code-compliant. It’s not worth the hassle later.
Construction screws are actually made for heavy-duty use and offer great shear strength compared to regular screws. However, deck screws typically aren't considered code compliant for framing. It's worth checking your local code, but generally, using screws that meet ANSI/ASME B18.6.1 standards is essential. If you're pulling permits, be ready to show specs to an inspector.
That's a solid point. If you’ve got the specs and they meet the nail requirements from the IRC manual, then you might be okay. Some brands like Simpson even make screws designed specifically for framing.
Exactly! For minor things like adding some insulation depth, screws can work, but for anything load-bearing, nails are definitely best.