A joint knife looks very similar to a putty knife.
Drywall taping knives have blades that are usually at least ten inches long. They are ideal for applying and smoothing mud.
In addition, their long blades help fix imperfections that the joint knife caused during the first layer.
Are Taping Knives Curved?
Taping knives are square on the sides. Joint knives generally have curved sides and look similar to a putty knife.
What’s The Difference Between A Drywall Taping Knife and A Scraper?
Scrapers have very stiff blades that can scrape things off the wall. For example, in a drywall job, you may use a scraper on any left behind mud when doing a repair.
However, since the blades are so stiff, they are not ideal for applying joint compound.
Drywall taping knives have a flexible blade that allows you to apply pressure without causing damage to the drywall.
Will Using The Wrong Size Knife Damage Your Walls?
Using the wrong size knife won’t necessarily damage your wall, but it can make achieving a smooth finish hard to accomplish.
When finishing your drywall, start by applying your first coat and your tape with a 6-inch knife. This small knife will help pack mud into the seams and screw indentations.
Next, use a drywall taping knife with at least a 10-inch blade for your second coat.
This longer-bladed knife will help you achieve the best finish.
What To Look For When Buying A Drywall Taping Knife?
Design Of The Handle
When choosing a drywall taping knife, the handle should fit your palm nicely. Since you’ll be using the knife to apply several layers of mud, it needs to feel good and not cause any wrist or hand pain.
Of course, a drywall taping knife needs to be durable. It should have a corrosion-resistant blade, a well-made handle and ideally, come with a warranty or guarantee.
With a drywall taping knife, the blade size is essential. You’ll want a blade that’s at least ten inches long.
However, some professionals prefer even longer blades, up to 16 inches.
Top Drywall Taping Knives Reviews
1. 10” Soft-Grip Stainless Steel Taping Knife (Our Top Pick)
The blade is premium stainless steel that is both corrosion-resistant and flexible. In addition, its big backplate allows you to hold more compound to get the job done faster.
The Dewalt taping knife has a soft-grip ergonomic handle which can reduce fatigue if you’ll be doing a large job. The end of the handle acts as an alloy metal hammer, so you can use it to reset drywall nails.
And Dewalt offers a lifetime guarantee.
The only con to this knife is that it’s a little more expensive than comparable options. But since it comes with a lifetime warranty, it may be worth the splurge.
It contains a 12-inch mud pan, 8-inch drywall taping knife, 12-inch drywall taping knife, 4-inch joint knife, 6-inch joint knife, and a 3-inch multi-functional scraper.
This kit is highly rated, with 5 out of 5 stars from more than 1,000 Amazon reviewers.
All the tools in this kit have soft ergonomic handles, stainless steel blades, and alloy metal hammer ends. If you want to skip collecting individual products and go all out for this set, it’s a good one.
The only real cons are that you may end up with tools you already have.
It comes a taping knife set
Come with two sizes of high-quality joint knives
It comes with a mud pan
Knives have stainless steel blades
All tools have soft, comfort grip handles
You may already have some of these tools
More expensive because it comes with so much stuff (still a good deal for the price, though)
If you’re wondering if you need a taping knife to finish your home improvement drywall job, you most definitely do. While you should apply your first layer of mud with a smaller joint knife, subsequent layers require a drywall taping knife.
Drywall taping knives are usually at least 10 inches. Their longer blades allow them to hold a lot of mud, and they create a much smoother finish than joint knives.