Notches and Bores

Question 1

An exterior or load-bearing Stud can be notched up to what percentage?

Answer 1

25%

Question 2

A non load-bearing Stud can be notched up to what percentage?

Answer 2

40%

Question 3

What is the maximum length and depth a joist can be notched?

Answer 3

A length of 1/3 and a depth of 1/6 the width of the joist.

Question 4

What part of a joist can not be notched?

Answer 4

The middle third.

Question 5

How much can a joist be notched on the ends?

Answer 5

1/4 the width of the joist.

Question 6

Missing wood fibers in the middle third of the span are the same as what?

Answer 6

A notch.

Question 7

An interior load-bearing Stud can be Bored up to what percentage?

Answer 7

40%

Question 8

What percentage of an interior non load-bearing Stud be bored?

Answer 8

60%

Question 9

How close to the top and bottom of a joist can a bore be?

Answer 9

Within 2-inches.

Question 10

The max bore size in a joist is what?

Answer 10

1/3 the width of the joist or D/3

Question 11

A bore should be how far from a notch?

Answer 11

A minimum of 2-inches.

Question 12

Bores should be a minimum of what from the edge of a stud?

Answer 12

⅝ -inches.

Question 13

If doubled, an exterior or load-bearing partitions stud can be bored up to what percentage?

Answer 13

40% to 60%

Question 14

How many consecutive studs can be bored 40-60% if the studs are doubled?

Answer 14

No more than 2.

Question 15

A bore cannot be located in the same section as what?

Answer 15

A cut or notch.

Question 16

The minimum required bearing for wood framing resting on wood or in a hanger is what?

Answer 16

1-½ -inches

Question 17

The minimum required bearing on concrete is what?

Answer 17

3-inches.

Question 18

A cut in a joist should be treated as what?

Answer 18

A notch.

Question 19

Ledger boards should have a minimum measurement of?

Answer 19

2x2

Question 20

Two opposing notches are permitted in the outer thirds if they don’t do this when added together?

Answer 20

Exceed the limits for a single notch

Question 21

A notch not exceeding D/3 is permitted in the top of a rafter or ceiling joist if it is within what?

Answer 21

The joist/rafter’s depth from the face of the support.

Question 22

An over-cut in a notch does what?

Answer 22

Adds to the notches depth.

Question 23

Beams over 4-inch nominal must not be notched on which side?

Answer 23

The tension side.

Question 24

The percentage of a top plate that may be cut out for plumbing and reinforced with a 16-gauge steel plate is what?

Answer 24

50%.

Question 25

Should the corners of a notch be cut square or at an angle?

Answer 25

At an angle.

Question 26

Angled corners in a notche help prevent what from forming?

Answer 26

Cracks