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66

I have had great success using a 4x8 foot sheet of white foam board. It is extremely light weight. I hung it from ceiling on strings attached to three binder clips or bull dog clips like show below. When not in use find a place you can store it flat. If it gets broken it’s cheap to replace. If it falls on a child no one gets hurt. The white foam is a good ...


50

Use Screws Anyway If it was me, I would quietly ignore "I am not allowed to secure it using screws in the wall." We are talking about a couple of screws here, which would leave ~ 1/4" holes, not cutting out large sections of the wall. Assuming it is drywall or plaster over studs, as opposed to a brick wall, I would put in two screws (~ 2" long) through ...


20

ApplePly is a brand name for an all-hardwood veneer plywood that is higher quality than your typical construction or cheap hardwood plywoods. (You may want to confirm that your "applewood" plywood is truly ApplePly). ApplePly should be similar in quality to baltic birch plywoods and like baltic birch it is not supposed to contain voids. You can find these ...


19

I haven't built anything into a recess like you describe so this is conjecture. If you're fitting it into a recess and it is encased on all 5 sides (ceiling, floor, left side, right side, back wall), you could get away with not anchoring it. Since when it tips, it would strike against the ceiling. I'd also put wedges on all sides because it's probably not a ...


16

It is impossible for the bookshelf to rotate forwards and crush anyone, child or not, the way you have drawn it. For it to fall on someone (who pulled on it, or climbed it) it would have to rotate around point A on this diagram: As you can see, before it becomes dangerously tilted the back will hit the enclosure at the top and stop it tilting further. In ...


15

Enter The Sagulator - it's a free online calculator for sag of shelves which is a wonderful tool exactly for these questions. Running your 2 shelf sizes, the larger shelf span (122 CM) won't hold more than about 2 KG overall without noticeably sagging. The shorter shelf (61 CM) can hold about 10 KG overall. As you can see, 10 MM plywood isn't that stiff ...


14

Anything is possible, but this falls under the Why On Earth Would You category. Removing and reinstalling a toilet is a fairly simple job for even a novice DIYer. Don't let that intimidate you into making your project far more difficult than it needs to be. Without knowing the details, here's a basic outline: Close the water supply valve at the wall. ...


14

Cut a sheet of wood into the dimensions of your window. Screw in L brackets in the four corners of the wall where you want to put the wood. Then just like a picture frame you install four rotating pegs to hold the board in place while you watch the movie. Depending on your budget, you could also install magnets on the back of your board to hold it in place ...


12

I would give your business to one of the "is good and stays dry" roofers who are not blatantly trying to fleece you. Now, the other two may be working from the assumption that if you bothered to call a roofer, you have leaks. But they strike me a lying scammers if they are selling you new plywood with no idea if the roof deck is rotten or solid. Plywood ...


12

Even on a good day, brad nails can curl on you. Through your fingers, if you aren't careful. However, if you look closely at the pointy end of a strip of nails, you'll see that they're cut at an angle on only two sides. (The other two sides are the ones adjacent to their neighbors in the strip.) Anyway, the nail is predisposed to curl in the direction of ...


11

Plywood absorbs water and is not a sealing material, period. You can use it as base for ruberoid roof, but not as the layer exposed to the rain. When exposed to rain, wind and sun plywood will cycle through absorbing water and drying out and this will wear out the most outer layer in no time so that it cracks and the damage then proceeds to the next layer ...


11

First off be aware of a couple of important points. In the old days before there ever was electricity and power tools crafts persons could build amazing things out of wood with hand tools alone. Woodworking, similar to any other craft, takes patience and practice. Plywood material such as you are proposing to work with is a modern thing invented in the age ...


11

If you're not too attached to your current design, consider getting a pull-down projector screen (example). They hide away almost completely when not in use, and you can install it without permanently attaching anything to your window frames. They also have reflective properties that make your pictures look better than a normal painted-white surface would. ...


9

A block plane might work but you're going to have a very tough time taking down 1cm of wood over such a long length. If you do use a plane, go in small increments and make sure you keep your blade as sharp as possible. A belt sander will work better, provided you use 40 or 60 grit sandpaper. Anything higher (smoother) and it will take you an eternity. My ...


9

The plywood goes down so the groove is away from the wall, that way, after the row is finished, or at least when you decide to start the next row, a 2X4 can be placed across the joists at the edge of the next row and drive, with a sledgehammer, the second run into the first. The gap should be 1/8" between ends. The tongue and groove (T&G) of the sheets ...


8

How much the shelves will sag depends not only on the materials you use, but also whether or not the shelves are fixed, whether there's a hardwood strip along the length, and how they are attached. The magic number to watch out for is 1/32" (about 0.8 mm) of sag per foot. MDF is incredibly heavy - your bookshelves will weigh a ton if you construct them ...


8

Dove tail joints are not a good option for any type of furniture that you would later hope to take back apart. Dove tails are designed to make a strong and attractive joint that is meant to be permanent. For advice on how to create effective joints that are straight forward to put together and take apart take a study of the techniques used by kit furniture ...


8

3/4” OSB board is better than 5/8” gypsum board. Sound control is measured in STC ratings (sound transmission coefficient). Here’s a website that tests various materials: https://www.ecopacificinsulators.com/uploads/4/7/1/6/4716609/sound_transmission_stc_rating.pdf Gypsum board is not as good as OSB board. 1/2” OSB board equals 5/8” gypsum board. As ...


7

Cutting shallower (with the handle closer to the work) will encourage the saw to cut a straight line. Cutting steeper (with the handle up high) gives you more maneuverability. Start the cut being careful to keep the blade in line with the cut. As you cut deeper, lower the handle to about 30 degrees. The blade will want to keep cutting in the same straight ...


7

In order for a bookshelf to topple forwards, it is necessary to have some force applied to the structure. Typically, that force is gravity. Gravity will not usually push a bookshelf out of plumb, disregarding earthquake activity for the purposes of this discussion. Your floor must be level. If not, adjust the base of the bookshelf to keep the structure ...


6

It's a mistake for the roofers to say that the plywood will definitely have to be replaced. However, they may be familiar with homes in your area, that were built around the same time. So they may have experience, that tells them that the decking will likely have to be replaced. Sometimes in situations like this, contractors will pad the estimate with the ...


6

If you use 3/4" plywood and not a veneered MDF you could drill a small pilot hole for trim head screws. It will leave a hole about 3/16" in diameter that will need to be filled after the panels are stained/sealed. That is the best simple way to do it. Even simpler would be to use finish nails. They would leave a hole to fill of about 1/8". The lengths of ...


5

Try iron-on edge banding. Iron it on (you will have excess probably) and then trim the excess. You can usually get it pretty close to the color of your stain that you choose.


5

Nailing sheets longitudinally greatly increases the length(s), nails, and nail-downs allocated to edge nailing, the most problematic fastening that is required--you have one (eight-foot) line of rafter midline nailing for every two (eight-foot) lines of sheet and rafter edge nailing. With transverse sheathing, the sheet length and nail count allocated to ...


5

They're required by 2012 IRC to use a fire retardant treated plywood on the roof within 4' of the UL assembly (the firewall that's between each unit). They can use OSB in the middle as it's much more cost effective than plywood.


5

There are a number of methods to apply large decals and stickers to surfaces while avoiding bubbles and wrinkles. Most professionals prefer a wet method. Clean the surface first. Then coat the surface, or the adhesive side of the sticker, or both, with slightly soapy water. Then lay it down slowly and use a squeegee while laying it down. The soapy water ...


5

You defiantly need to support the subfloor around the perimeter. Let's say this is your floor without plywood. You want to put plywood down, but the edge of the sheet has nothing under it for support. If you don't support the plywood, you'll end up with a "soft" spot around the perimeter. Stepping, or adding weight to this area will cause the plywood to ...


5

Fasten your first layer plywood subfloor as you normally should. The second (top) layer of plywood joints should not coincide with the joists and the second layer should not be fastened to the joists. Article quote from - Position of Underlayment to Prevent Cracked Tile and Grout By Frank Woeste and Peter A. Nielsen For publication by the TILE LETTER ...


5

I've never used a Japanese-style saw, but have always found it easier to keep a long cut straight with the rigid blade of a tenon saw than with a carpenter's saw. Held at a fairly shallow angle, a tenon saw can make an indefinitely long cut in material up to about 12mm thick. Then finish with a jack plane with a very sharp blade set shallow.


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