Joists and subflooring

How do you determine if your room is square?

• Measure the lengths to see if they match

• Measure the widths to see if they match

• Measure the to diagonals to se if they match

• Use your speed square

What is the typical span for joists?

• 16 ioc

• 18 ioc

• 24 ioc

• 12 ioc

The speed square can be used to....

• Measure length of a board

• Cut boards to length

• Mark joist locations on the rims

The rim joist is ...

• The top part of a wall

• What the common joists are nailed in to

• Usually smaller than the common joists

Typical subflooring is ______ inches thick?

• 3/8

• 1/4

• 1/2

• 23/32