Welcome Guest | Login | Register
Icon single sheet About FAF Blog

The flooring blog at FindAnyFloor.com keeps you up to date with the latest flooring features, tips and hot topics? Find out what’s going on beneath those feet of yours! Visit the FindAnyFloor.com floor blog and stay up to date on all things flooring. Ask questions and find answers from our flooring pros! We also have a family of flooring blogs that cover topics such as green flooring, topics for floor professionals, and our corporate floor blog to keep up with everything at FindAnyFloor.com.

March 2021
  • S
  • M
  • T
  • W
  • R
  • F
  • S
  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15
  • 16
  • 17
  • 18
  • 19
  • 20
  • 21
  • 22
  • 23
  • 24
  • 25
  • 26
  • 27
  • 28
  • 29
  • 30
  • 31
= New Post

FAF Blog

The Janka Hardness Scale

By FAF Staff Writer, (264 words) Posted in Hardwood Flooring on October 29, 2009
There are (20) comments permalink

Every solid matter, be it steel, cast iron, rubber or wood has a method of testing its properties. One of the important aspects is the hardness of a solid which determines its ability to withstand wear and abrasion. Every solid has its own methods of testing called by different names. The hardness of wood is classified by the Janka Hardness Test.

The Janka Hardness Test is a measure of the force required to insert a steel ball measuring 11.28 millimeters (0.444”) into wood up to half its diameter in depth. In doing so, the ball would have made an indentation of exactly 100 square millimeters in area.

There is some confusion in the outcome as different countries observe different units of measurement. In the United States, the measurement is in pounds force, abbreviated to lbf. Brazilian Cherry, for example is 3650 on the Janka hardness scale, which means it requires 3650 pounds force to be applied to the ball to leave an indentation of 100 square millimeters. When communicating between countries, a conversion factor is applied to bring it to a common denominator.

There are two conventions in measuring the hardness of wood. If it is taken across the grain or perpendicular to it, it is known as "side hardness" whereas if it is taken with the grain it is known as "end hardness," as would be the case when measuring the wood across the face of a stump.

Based on the hardness test the Janka Hardness Chart has been created for all common species of wood. This ranges from 4500 for Lignum Vitae, the hardest known wood, to just 100 for Balsa.

image: blog cloud comment

Comments (20)

rolex air king posted on: March 19, 2013

Reproduction rolex watch will be the tattoo regarding classiness in replica rolex watches addition to grace certainly since it is made from particular particular attention, commitment, in addition to professionalism. That's the reason rolex reproduction is normally referred to as since good rolex daytona. With all the donning regarding reproduction rolex watches, women of all ages would absolutely glimpse since gripping since ever before. Up coming false rolex watches have become correct for any well-dressed men whatsoever. They are quite down-to-earth watches general health ever before increase your own good sense regarding do-it-yourself rolex replica in addition to buoyancy exceptionally.

desmod posted on: July 25, 2013

Sometimes it confuses me what that really is. - Marla Ahlgrimm

janet1989 posted on: August 14, 2013

As with Romain replica watches Jerome's past masterpieces, the Moon Orbiter still includes the cheap replica watches sprinkling of celestial satellite dirt as well as steel gathered from the Apollo eleven spacecraft, nevertheless christian louboutin outlet its $115,thousand price tag and namesake could be more attributed to the mechanised rolex replica tourbillon that are suspended inside a stationary scope about the left side from the view.

nice posted on: August 22, 2013

high replica for cheap gucci shoes

for cheap online gucci shoes for men

for cheap wholesale cheap gucci sneakers

for cheap sale online gucci shoes for women

online sale for you air max 90

for wholesale online to you cheap nike air max shoes

supply all kinds of nike shox r4

high replica for cheap cheap gucci shoes

for sale online cheap nfl jerseys

for cheap sale online cheap coach handbags

payday loan posted on: March 5, 2015

They may direct deposit the money right into your checking account and you may give your auto mechanic the okay to repair your brakes. Sure, you noticed the interest rate on your loan. Relying on the state you live in, the price will run anywhere from $15 to $20 per hundred. Should you roll over the mortgage to your subsequent payday loan, the charges will double however hey, peace of mind now could be better than being wired without your car.

come aprire la partita iva posted on: May 6, 2015

Perfectly, wonderful posting by using enlightening information and facts. I actually love that you actually solution all these themes originating from a take a position factor with awareness plus information and facts. It is a newbie; I actually seen in your web-site plus turned a person's buff. You will be saved as a favorite. At this moment mouse click come aprire la partita iva I highly recommend you persist with posting.

superr posted on: September 23, 2015

Bila kalian ingin dapat menyulam alis dengan mumpuni oleh sebab itu saya referensikan belajar di Kursus Sulam Alis di Surabaya.
Dan andai kamu pingin rental mobil yng murah mari saya sarankan diSewa Mobil
Lalu,tuk anda yang selagi menemui kesulitan dengan pemanas air didaerah kalian maka servicelah di Service Wika SWH.
Kalian berminat mengoper produk ke seluruh dunia? Ayo baca ini Jasa Kargo Logistik.

proteinplanet.eu posted on: December 3, 2015

Scherzi piacevole scrittura di contenuti. Si tratta di un fantastico particolarmente invio. Chiunque potrebbe funzionare. Sarò molto felice di ottenere quel meraviglioso pagina web. Attualmente è sufficiente fare clic in questo articolo proteinplanet.eu Apprezzate lo lotti piuttosto dubbio. Tenere la pubblicazione.

wxm posted on: April 26, 2016

uggs outlet, abercrombie and fitch, ugg australia, hogan sito ufficiale, moncler women jackets, jordans for sale, www.tommyhilfiger.nl, coach usa, adidas shoes, indiana pacers jersey, toms shoes outlet, nike store, fggsdfgsdf posted on: September 8, 2016

itube install on the official site is not particularly set up for pc clients, so we require another path in pc use iTube end, along these lines like Andrews recreation programming. Utilizing Bluestacks App we will have the capacity to download itube pro straightforwardly and will have the capacity to appreciate every one of the components of the Android App into our PC screen and that too with bother free strategy or procedure which we have given beneath.
itube pc download requires the accompanying four stages to pc:
1.get the authority Bluestacks App from this connection
2.itube appits important to introduce this project in your Windows 7/8/10 Computeritube android

Jurijal posted on: September 29, 2016

Very nice post, i certainly love this website, keep on it Website Information Visit

ressrouter posted on: October 10, 2016


GebyarBola posted on: December 6, 2016

There are some interesting points in time in this article but I don’t know if I see all of them center to heart. There is some validity but I will take hold opinion until I look into it further. Good article, thanks and we want more! Added to FeedBurner as well Agen Bola Agen Sbobet Agen Bola Sbobet Agen Bola Terpercaya Gebyarbola.net

cash advance posted on: January 1, 2017

Perfectly, the following is actually an awesome posting. I like profession get started plus finish your thoughts. At this moment take a look at cash advance Thanks a ton a great deal of in this information and facts.

Omega Replica posted on: December 13, 2017

The chunky case houses a screw connector for the antenna, which wearers Replica Tag Heuer view as a positive feature of the watch, not a hindrance. Fake Rolex
The newest addition to the Professional collection is the Exospace B55 for wireless connection Replica Patek philippe Exospace B55 for wireless connection to a smartphone. The user can set the time using the phone, as well as reading start and landing times on the phone

icon: cloud post

Talk back - leave a comment

Post a Comment

Post a Comment

  • email a friend
  • delicious
  • digg
  • facebook