What is the most effective method for securing 14in underlayment when unsure about using screws?
Asked by Amelia Chen 
6 months ago
Last Updated: June 29, 2024
What’s the best way to secure 1/4-inch underlayment? I’ve been looking around but can’t seem to find a clear answer on whether screws are the way to go.
Clips used for fastening
Nails with rings around them
Tool for attaching items together
I used a staple gun for mine (many years back). It wasn’t a small Arrow type, but a Bosch. The staples held the plywood in place smoothly.
If you don’t have air or a stapler, could you consider screwing them in? Keep in mind this is just to elevate the floor.
Staples and adhesive. Not too powerful, though.
Just hammer in a few short ring shank nails… you could even try using roofing nails if you have them
You can simply use underlayment tape to link all the seams
Stuck together with glue and staples
I use ring shank nails quite generously
Hey, J Chris! Can you confirm the size of that 3/4in? I’m guessing it’s for the 3/4 subfloor.
Recommends using a board size that goes at least another half inch into the bottom layer.
1/4″ crown staples
It looks like there are 3 choices. I could go for a Ryobi stapler since I already have batteries, a hammer, and nails. Another option is to purchase a nail gun. The last option is screws. I don’t want to invest in a tool that will only be used once
Go ahead and rent the tool, If it’s just for one room … it should be either a full day or half day rental, correct?
I’ll investigate that, . Depending on the cost
Personally, I usually opt to purchase new, use it, then sell it lightly used. The difference in price may be close to the rental cost. The advantage is that you can use it as you please and don’t have to worry about returning it within a set time frame.
I really value your assistance. This situation is beginning to frustrate me
If you’re referring to 1/4” plywood underlayment, you’ll want to lay down 1/4” x 1’ staggered sheets, stapling around the perimeter every 2” and every 6” down the length. Repeat the process
Cement board, right? Follow the manufacturer’s instructions/guidelines. I applied a layer of thinset and used cement board screws, I believe.
Said there is no cement board for the bedroom floor.
What kind of flooring are you referring to?
How many square feet are we talking about? The larger the area, the more practical it is to use a power nailer and staples. It saves time and staples are super inexpensive.
Talking about a small bedroom. No plans for other rooms
I’d likely go with ring nails.
Staple guns are really affordable. If you’re working on a room, this will do the trick. If you’re tackling your entire house, your hand might get tired from the trigger.
Doesn’t believe the underlayment is penetrating 1/4 inch. You’ll need a compressor or battery-operated tool.
Adhesives and fasteners
In the past, I’ve used 1-1/4 screws on 1/4 Luan before installing a laminate floor. It held up well for many years, but now I’m removing it after 16 years.
Wouldn’t that length extend through the subfloor?
It might vary depending on the thickness. In my situation, we don’t have that. We have 3/4 inch on top of another 3/4 inch, and then 1/4 inch on top of that. The subfloor in my case consists of strips of 3/4 inch with gaps between them.
I’m not exactly sure what mine is. I think it was built in the ’70s. I would guess it’s just 3/4 inch.
For the first time, consider using 1/4″ plywood underlayment instead of just any plywood. This type of underlayment is smoother, stronger, and has markings for where to place fasteners. A Bostich pancake compressor with a stapler costs around $250. Having a compressor is useful for everyone, and the stapler can be a lifesaver for unexpected projects.