One problem with Phillips drive screws is that they tend to strip, making them hard to remove. Screws Help Hold the Weight on Drywall Using several screws that are #4 or larger into a wall stud can hold up to 100 pounds or more. We have enlisted several vital considerations to make when choosing plywood screws. The coating is a top-quality stainless steel screw built to withstand moisture without rusting. What is a cheaper alternative to Sheetrock? Why do small African island nations perform better than African continental nations, considering democracy and human development? . If the plywood subfloor youre placing is 5/8 of an inch thick, you need a screw about 1 5/8 inches long. Not necessarily level, although I don't like saying it, but it has to be on the same plane. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. As the seasons change so do the temperatures inside and outside the home. Don't expecct the local building inspectors to have caught everything. Without enough pressure, the bit may strip the screw head as it gets farther into the wood. How long of a screw do I need for 3/4 plywood? 19/32"-1" panels. As you move along the piece, put in a screw every 12 inches. Both dimensions are evenly divisible by 16, so a full panel will set neatly on the studs. Specifically see page 8 and 23 from The Ditra Handbook for your application. You want to make sure they can go at least 1 inch into the stud to be secure. The extra torque on the plywood will drive the screw further inside, enough to make the head countersink. Fasten your first layer plywood subfloor as you normally should. How much does a 48 sheet of half inch plywood weigh? Xylan Coated Stainless Flat Head Phillips Wood Screw, Phillips Bugle Head w/Coarse Thread (BCP439), How Many Screws in a 4x8 Sheet of OSB or Plywood, Cheap Concrete Floor Covering Ideas That Look Amazing, Can Mold Grow Under Vinyl Plank Flooring? To prime your drywall, you need to clean it first by sanding it, vacuuming it, and rubbing it down with a black cloth to ensure that all dust is gone. First time - no problemo! A sheet of regular 1/2-in. Chuck, Is this an answer to the question or a comment on Tester101's answer? One question which often pops up during construction or renovation projects is whether or not you can use drywall screws to secure the subflooring. The best answers are voted up and rise to the top, Not the answer you're looking for? Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. The actual weight of a sheet depends on the type of plywood, the amount of fiber in the panel, and the thickness of the board. How many screws per sheet of plywood subfloor? Bottom line, Don't attach the 1/2 inch to the joists. Also, if you want to, you can type in the custom values of the plywood price and plywood sheet dimensions you want to buy. Then do the same thing for the width. This means that for 7/16" underlayment and 23/32" subfloor, the longest fastener you can use is 1-1/8". 11. The subfloor is nailed and glued, I am not certain as to the nail spacing. Weve explained that screws are head and shoulders above nails in plywood subfloor projects. If there's a stud directly behind the wall, for instance, you probably won't need to use them. You do not need to pre-drill drywall screws. If you have inch quarter wood, then the best size screws to go with this type of material range between 1 and inches long up until around 2 and a 1/2 inches in length. You can add another spec to your list: ANSI A108 spec (standard on which the TCA Handbook is based) calls for the ply to be nailed off every 6" along the edges and every 8" through the field. When installing drywall on a ceiling, professionals generally recommend using a screw every 12 inches. Countertops 1/4", 1/2", 5/8" thickness Minimum 3/4" APA span-rated plywood or OSB with an Exposure 1 classification or better. Oh, yeah, conside hiring a good home inspector or another contractor to go through it ASAP. Check the ceiling for bowed joists using a 4-ft. level. For construction outdoors, such as an exterior stairway, zinc coated nails or decking screws should be used to attach plywood. Home Improvement Stack Exchange is a question and answer site for contractors and serious DIYers. The second sheet will allow for ever so little movement between the sheets and not transfer total movement from the joisting through to your final flooring. When securing OSB or plywood subflooring, you should use a screw every 8 inches along the floor joist or truss. Should you drywall ceiling or walls first? Seems to me there is plenty of authority that he's wrong (e.g., APA). This tile setter may be a **** depending on the way he goes about doing this but his standarads are right up to snuff and the 'builder' is far from professional. Sub floor adhesive. For this plywood layout, it makes sense to start with a crosscut at the dimension marked for the Side width. Therefore, you should settle for steel screws for your plywood project. To view the purposes they believe they have legitimate interest for, or to object to this data processing use the vendor list link below. Pressing the Escape (ESC) button will close the modal and bring you back to where you were on the page. 38. How many screws in a 4x10 sheet of drywall? Hello, and welcome to Stack Exchange. You'll have to consult the manufacturer of the tile for the specs on flatness. Are you sure you want to remove the following product from the cart? How would "dark matter", subject only to gravity, behave? What is this?Sep 3, 2020. While I agree with the tile installers, my builder disagrees, and claims that this is how they have always attached the underlayment. Here are some of the reasons why screws are better than nails: A plywood floor ought to be quiet at all times. Fix tiny nail and screw holes: Tiny nail and screw holes are the easiest to fix. Also, how flat does my subfloor/underlayment need to be? 3/4 into a 2 x 4. How far apart should screws be in plywood? How to properly install tongue and groove plywood subfloor? Screws have the added benefit of not backing out and causing floor creaks when walking on the floor. 5. How many coats of paint can drywall take? Final Thoughts. Plywood sheets weigh up to 63 lbs, with most standard-sized panels weighing around 42 lbs. If this is the subfloor only and your tile guy will be installing backerboard as an underlayment over the ply, then I would defer to APA requirements. Rather than start with a blank page, draw your cutting diagram on graph paper. Yesterday, when the tile installers arrived at the site they found that the 1/2 plywood underlayment (over 3/4 advantech OSB) had not been sufficiently screwed down. How much weight can 4 screws hold in drywall? It thus forms tighter joints than all the other three screw drives. There are also several other assembly questions that come into play (which you may have already dealt with), such as expansion spacing, sealing, type of screws, etc. Generally, for thinner plywood (less than 1 inch thick), at least two to four clips per sheet are suggested for optimal holding strength. How many bricks required for 1200 square feet house? Connect and share knowledge within a single location that is structured and easy to search. Therefore, a #8 drywall screw is thicker than a #6. You'll end up with seven columns of four screws apiece, or 28. Hitting the joists also very important. They are also available in a variety of sizes. Also, they don't care if it is glued or not, so long as the FASTENERS are spaced as noted. Get home building tips, offers, and expert advice in your inbox. how is the subfloor structured? Are expansion gaps necessary in a plywood shed floor? You also need to pay attention to the head of the screw as its a vital determinant of the final outlook of the plywood project. Radial axis transformation in polar kernel density estimate. If he is booked up and needs to be elsewhere thats fine, just say so. You can see that the parts are organized to use the sheet as efficiently as possible, and to make cutting easierwhich well get to shortly. The face with the nailing pattern is designed to go up. On a warm day you will be able to stretch that a bit, and on a cold day with cold glue, you will be hard pressed to get that amount of coverage out of your tube of glue. My main question here is about how to secure to the joists. And you can draw a full-size 48 sheet of plywood on standard printer paper. Do you tape inside corners when Drywalling? Too many times guys like this will come one a job looking for an excuse to be somewhere else. So, youll need 12 screws down the 8-foot length of OSB or plywood. GRK is a brand of high quality screws. 3 Common Screw Types at a Glance Machine, Sheet Metal, and Cap Screws. For example, for F142-03, the TCA Handbook states, offset end and edge joints of the underlayment panels by at least two inches from the joints of subfloor panels; they should not coincide with framing below." Check out 22 similar home and garden calculators , Plywood sheets - an example of calculations, Whether you should buy a cheaper type of plywood or not; and. Ceilings are fastened 12 inches on center. Your tile guy is right, and IMO it's builder's responsibility to get it where it needs to be. How much does it cost to drywall a 10x10 room? no backerboard under the tile). Browse other questions tagged, Start here for a quick overview of the site, Detailed answers to any questions you might have, Discuss the workings and policies of this site. Thus, for many people, it is the most convenient option. I am installing natural stone tile, so I've had to reinforce the joists a bit and I'm currently working on installing a new subfloor. In general, paper drywall tape is slightly stronger and more versatile, but mesh tape has a more manageable learning curve and better moisture resistance. Another crosscut yields two more project parts. Use a putty knife to fill them with spackling or wall joint compound. Position SurePly plywood underlayment panels 1/8" to 1/4" from the walls to allow for expansion. Nail Spacing. ", Did he provide any authority for his position that it was properly fastened? Maybe get em up with napalm. Without enough space when this happens, you'll get cracks. The allure of using nails in a plywood or OSB installation is quite strong. Vinyl tile installation - remove or install on top of existing vinyl? Screws come in gauges 2 through 16. How many screws per 4x8 sheet of plywood? waste factor = 10%. Most cabinets are less than 36 inches high and 24 inches wide. That way the compression assures a more continuous contact between layers so that the whole becomes one, eliminating minor movements which are the bane of tile installations. The plywood cut sheet calculator is versatile and stands here to help you make decisions about: The only thing that we ask you for is to enter the length and width of the surface that you need to cover. If the subfloor is screwed down every 8" and THEN underlayment is an additional 1/2" and GLUED AND SCREWED..what more could one ask for???? Using my experience, I would fasten the underlayment with adhesive and 7/16-inch crown staples every 6 inches driven with a pneumatic stapler. Costed screws offer protection from moisture which induces rusting and loosening. This is interesting, but hard to understand; would you add a few sentences and make your post clearer? 5/8" APA span-rated plywood or OSB with an Exposure 1 classification or better. Instead of trying to cut one piece at a time, you can rip (cut lengthwise) or crosscut (cut across the sheet) to break the sheet down into smaller pieces, and then cut the individual parts to size from those. He has refused to screw the underlayment as the installers have requested. Adhesive will help you here, as the subfloor plywood will have voids in spots that will not hold a fastener. On a new wall, you'll want to follow the rule and apply two coats of paint after primer. The last screws will be at the bottom edge of the panel. If it's 4-by-12, it'll take about 36 screws. Nonetheless, if you are looking for an extra tight joint, the drive will deliver precisely that. Always leave a 1/2-inch gap at the floor. Founded by Hubert Miles, Certified Master Inspector. Manage Settings Continue with Recommended Cookies. Or if you want to go for epoxy resin flooring that's slip and shock-resistant, check out our epoxy calculator for estimating how much epoxy resin you'll need. If the plywood is quite dense in thickness, you can use a number 8 weight drywall screw. I am in the process of building a home in Maine.
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