American Woodworker
Contact Us | Help | Report a Bug
Sign in | Join
 
» » »

How to Deal with Knots Salem NH

A spike knot is formed when a board is cut right through the lengthof a branch. A spike knot may be tight at its base (the intergrownportion) and loose at its end (the encased portion).

Rockler Woodworking and Hardware #34
(603) 898-5941
373 S. Broadway
Salem, NH

Data Provided by:
Jim Rogers Sawmill
(800) 422-6250
117-R Jewett St.
Georgetown, MA

Data Provided by:
The Mall At Rockingham Pk
(603) 894-7700
77 Rockingham Park Blvd
Salem, NH
Store Hours
Sears Stores
Store Type
Sears Stores
Hours
Mon:10-21
Tue:10-21
Wed:10-21
Thu:10-21
Fri:10-21
Sat:8-21
Sun:10-18.5
Store Features
Mon:10-21
Tue:10-21
Wed:10-21
Thu:10-21
Fri:10-21
Sat:8-21
Sun:10-18.5

Abbott-treat Industrial
(978) 685-5115
20 Winter St
Lawrence, MA
 
Bruckmanns True Value Hdw.
(978) 686-4105
179 S Broadway
Lawrence, MA
 
Northland Forest Products, Inc.
(603) 642-3665
16 Church StreetPO Box 369
Kingston, NH

Data Provided by:
All Righteous Woods - Fruit of the Earth -
(978) 948-7329
288 Newburyport Turnpike Rte 1
Rowley, MA

Data Provided by:
Lowe's
(978) 241-1861
25 Computer Drive
Haverhill, MA
Hours
M-SA 6 am - 10 pm
SU 8 am - 8 pm

Bridge Street True Value
(603) 635-1521
122 Bridge St
Pelham, NH
 
Arthur Sharp Farm Supply Inc.
(978) 374-4044
21 Middlesex St
Haverhill, MA
 
Data Provided by:

How to Deal with Knots

How to Deal with Knots



Knots are usually considered defects in wood. They're cut out of boards and thrown on a scrap heap. But take a closer look at a knot. In a hardwood, it's surrounded by stunning grain. Why not make it the focal point of your next project? The best knots crop up on some of the least expensive, lowest grade boards available. Dealing with knots can add extra work to a project, but you don't need any special equipment. You just have to know what you're up against. To begin, take a look at where the three basic types of knots come from in the photos at right.

An intergrown knot is the base of a living branch within a tree.It's surrounded by a halo of circular growth rings. An intergrown knot is also called a “tight” knot because it's tightly bound to the wood around it.

An encased knot is formed when a tree grows around a dead branch. It's surrounded by a dark ring of bark, and its center is often decayed. An encased knot is also called a "loose" knot, because the bark prevents the knot from tightly binding to the wood around it.

A spike knot is formed when a board is cut right through the lengthof a branch. A spike knot may be tight at its base (the intergrown portion) and loose at its end (the encased portion).

Use knots for drama. Here's an opportunity to have fun with unusual patterns, as in this spalted-maple kitchen table. It has a comet-shaped pairing of a huge inter grown knot and a very long spike knot. Showing off the incredible swirling grain around a knot turns an inexpensive, lower grade board into a beautiful example of nature's art.

Resawing can be spectacular! A board with knots near an edge yields the most interesting mirror-image patterns, as shown in this piece of aromatic red cedar. Before you cut a board down its length on a bandsaw, hold the board on edge against a mirror. The outside of the board and its reflected image give you a pretty good idea of the book-matched pattern you'll get after resawing.

Keep your distance from knots when you're cutting them out. It'stempting to get the last inch out of every clear piece, but often it'snot worth it. The wood fibers around a knot have a very steep slope.(Right next to the knot, they run almost vertically, the same directionas the branch grew on the tree.) Wood fibers with a steep slope arecalled “short grain.” Short grain weakens the end of a board, making itunsuitable for rails and legs. Short grain may also cause the end tochip out when you joint or plane the board.

The Way Wood Works 

Pound out an encased knot before ripping a board on the tablesaw. Ifa saw blade were to catch this knot, it would launch it like a missile!The best tool to drive out a knot is a large dowel, rather than aslender metal punch. A punch can get stuck inside a decayed knot, but...

Click here to read the rest of the article from American Woodworker