Whats the difference between a joint knife and a taping knife
Matthew Martinez
Updated on April 07, 2026
Some manufacturers make a distinction between joint knives and taping knives. Generally, joint knives are smaller (6” and below) while taping knives are larger (6” and above). … Taping knives, on the other hand, are typically more rectangular.
What does a taping knife do?
A taping knife or joint knife is a drywall tool with a wide blade for spreading joint compound, also known as “mud”. It can be used to spread mud over nail and screw indents in new drywall applications and is also used when using paper or fiberglass drywall tape to cover seams.
Can you use a putty knife for drywall?
The putty knife is one of the most versatile hand tools you will have in your toolbox. It can be used for applying filler materials like wood filler, drywall taping compound, scraping residue and any number of other applications.
What size taping knife is best?
The good thing is that drywall knives are not expensive. The 6-inch knife and the 4-inch knife are used for slopping the mud into place and for taping. The 12-inch knife is used for feathering and final coats. You will need either the 4- or 6-inch (they are fairly interchangeable) and the 12-inch knife.What angle do you hold a drywall knife?
Starting in one corner of the room, force the compound into the joints between sheets. When they’re completely filled, hold the knife at a 25-degree angle to the surface and smooth out the compound in a single pass. Scrape excess compound off knife and into mud box.
Which drywall joint to tape first?
The “first coat” consists of applying the mud-saturated tape to all of the joints and corner beads and filling screw or nail holes for the first time. Begin with the butt joints first, then the horizontal tapered joints, then the angles and finally, the corner beads.
What is a drywall hawk used for?
A hawk is a tool used to hold a plaster, mortar, or a similar material, so that the user can repeatedly, quickly and easily get some of that material on the tool which then applies it to a surface. A hawk consists of a board about 13 inches square with a perpendicular handle fixed centrally on the reverse.
Do I want a stiff or flexible putty knife?
Generally speaking, tasks like scraping small areas or applying dollops of putty with precision require the use of a stiff, more slender blade. A tool as slim as the HYDE 2-Inch SuperFlexx™ Stainless Steel Putty Knife works well for scraping around staircase balusters or along strips of window trim.What mud do you use for drywall?
Topping compound is the ideal mud to use after the first two coats of taping compound have been applied to a taped drywall joint. Topping compound is a low-shrinking compound that goes on smoothly and offers a very strong bond.
Why is a fish knife shaped the way it is?Fish forks (and knives) often have an incurve shaped form (pictured); this feature was likely simply to differentiate it from all the other forks that could be present on the table, as there were frequently many. Like traditional dining table settings, the fish knife and fork are placed in order of use.
Article first time published onWhat wall texture is most popular?
Orange Peel This “orange peel” finish is perhaps the most common wall texture. It can be applied with a thick nap roller, or more commonly sprayed on using a mud hopper and air compressor.
What is a skip trowel finish?
Skip-trowel drywall finishes are a form of man-made finishes created through the use of a flat trowel that is skimmed or “skipped” over the surface of the drywall as it is being textured to your chosen finish.
Can you use hot mud for texture?
hot mud sets harder than regular mud. Both mixes will work fine and when you have your orifices set you can get the thickness you desire. Just a note never use warm or hot water only cold. warm / hot water will cause the mud to set much faster that’s how I know about the gun being toast.
What is a curved drywall trowel used for?
Use this LEVEL5 12″ Curved Drywall Trowel for smoothing and finishing drywall joint compound, plaster, EIFS, stucco, and more.
What is compound knife?
Honing compound is extremely fine abrasive used in the final polishing stages of sharpening. These abrasives are sometimes loose, but are usually held in a medium like a wax bar, a paste or a spray. … Various materials are used for the abrasive particles such as aluminum oxide, chromium oxide and diamonds.
Should I sand between coats of drywall mud?
In most cases, you should sand between coats of mud. Check the guidelines for your mud, but you will usually need to leave it at least 24 hours to set. … After the first and second coat, just remove any bumps or lumps of mud. You don’t need to get a perfect finish at this point.
What do you cut drywall with?
Score Drywall With a sharp utility knife or other cutting tool, follow the pencil line and lightly cut through the paper layer of drywall. Tip: The best tools for cutting drywall are utility knives, putty knives, reciprocating saws, oscillating multi-tools and track saws with dust collectors.
What is a Level 4 finish in drywall?
Level 4: This is the classic drywall finish. Here, you apply another coat of joint compound to the tape and screws and sand the dried compound. This is the level that typically is used when a wall surface will be painted or covered with wallpaper.
What is in spackling paste?
Spackling paste or spackling compound is made of gypsum powder and binders and is used to patch small holes, cracks and other imperfections like dents in drywall, plaster walls, and sometimes in wood.
What is a plasterers float used for?
Floats are used during the plastering process to make sure that every part of the wall is as flat and smooth as possible – known as floating. For more information see How to float plaster?
What happens if you don't use drywall tape?
If you skipped the drywall tape and just used joint compound to fill in the seams, the seams would become visible again after the compound dried. Joint compound shrinks!
Is it OK to overlap drywall tape?
DON’T overlap drywall tape. Applying a single layer of paper tape will help minimize any chance of ending up with a bulge in the finished wall.
Should I tape corners or seams first?
The order of taping is the same: Do screw indentations and beveled joints first, inside and outside corners next, and butt joints last. If you use mesh tape on flat joints, note that it’s not suitable for corners.
What is the difference between joint compound and drywall mud?
Joint compound (also known as drywall mud or simply known by pros as mud) is also comprised mainly of gypsum dust that you mix yourself to a cake frosting-like consistency. … With a little bit of finish work, the joint compound helps create a smooth surface with undetectable seams.
Is mesh drywall tape better than paper?
Conclusion. In general, paper drywall tape is slightly stronger and more versatile, but mesh tape has a more manageable learning curve and better moisture resistance. At the end of the day, this contest comes down to personal preference: use the tape that you’re most comfortable with!
Which side of drywall tape faces out?
Drywall tape is designed with a manufactured seam or fold down the middle (graphic right). This seam makes it easy to fold long lengths of tape for use on inside corners. Because this seam is slightly raised, you should always install drywall tape with the outside raised area of the seam against the wall.
How long does it take for joint compound to completely dry?
Under conditions of a temperature of 70° and 70% humidity, joint compound should dry in about 24 hours. Higher humidity and/or lower temperatures will slow drying time.
What is a tang scraper?
Traditionally these scale tang scrapers have been used by professional decorators as a stripping knife for removing paint and wallpaper. … Available in 1, 1.5, 2, 3, and 4 inch blade widths.
What can I use in place of a putty knife?
If you don’t have a putty knife, just about anything with a flat edge and at least one smooth side will work—a butter knife, a paint stirrer, or even a ruler.
Why are fish knives non U?
Why fish knives etc are Non-U (in French, the language of polite behaviour, equivalent to ‘Shame on you!’)
Can you put a fish knife in your mouth?
A fish knife is similar to other table knives, but it has a wide, flat spatula blade and a sharp point. … The flat part of the fish knife blade is ideal for lifting the meat off the bones (or off the plate in the case of fillets), onto the fork, and eventually into the mouth.