H4 - Build Wall Systems

Question 1

When toenailing wall studs in place, what is the minimum length of nail that may be used?

Answer 1

Four 63 mm nails (2 1/2”)

Question 2

What is the minimum length of nails that may be used to fasten the cripple boards to the adjacent studs? How far apart are these nails placed?

Answer 2

76 mm @ 750 OC (3”nails at 30”)

Question 3

What is the nail spacing of the bottom plate to the floor joists?

Answer 3

400 mm o.c (16”) for standard walls

Question 4

Describe an easy method for measuring the stud, cripple & jack lengths for a door, or window opening in a wall.

Answer 4

Use a storey pole.

Question 5

What size of the gap is left in the double top plate of an exterior wall to allow the double top plate of an interior wall to intersect it?

Answer 5

Width of the interior plate plus 1/4” on either side of the layout position.

Question 6

Why should the sheathing overlap the window openings?

Answer 6

Provides structural strength at corners of openings, and also allows for increased spans of lintels.

Question 7

How are joins in the vapour barrier made vapour tight?

Answer 7

a 4” overlap & tape

Question 8

What material is best for wall plates?

Answer 8

The longest, straightest material available

Question 9

What is the order of laying out a wall plate?

Answer 9

1) Openings
2) corners & partitions are laid out
3) Common studs are laid out

Question 10

How to lay out an intersecting partition wall?

Answer 10

Mark the location of the center of the partition on the plate, then measure half of the partition width on either side of the mark.

Question 11

When two or more studs are required to be nail-laminated together, crooked studs can be used in ______ directions to straighten eachother

Answer 11

Reverse

Question 12

When nailing the upper top plate, nail over the stud locations why?

Answer 12

To prevent nails from being placed where plumbers & electricians will be drilling

Question 13

Most wall framing connections call for what size nails?

Answer 13

3 1/4” nails

Question 14

Most framing connections require how many end nails?

Answer 14

Two end nails

Question 15

When double studs are used at openings, corners & wall intersections, they must be mailed together with:

Answer 15

At least 3” nail every 450 mm (30”)

Question 16

Upper top plates must be nailed to the lower top plate at

Answer 16

With 3” nails at 24” oc, put over studs (refer to BCBC)

Question 17

Bottom or sole plates must be nailed to the joists or blocking at

Answer 17

16” oc using 3 1/4” nails REFER TO BCBC

Question 18

Panel type sheathing materials are nailed at:

Answer 18

6” o.c along the edges and 12” oc in the middle of the sheets.

Question 19

BC building code allows for increased spans for lintels if the lintel is covered and tied into the wall with:

Answer 19

Structural sheathing, OSB/Plywood can be properly nailed if the joints are not in the wrong places

Question 20

What is the purpose of a vapor barrier

Answer 20

Must be present to keep air & water vapor from entering the wall and ceiling cavities, and be continuous.

Question 21

When is a thin partition constructed?

Answer 21

Thin partition using 2x2 studs are typically placed in between 2 closets when space is limited.