User's Manual

Page 106 of 332 Chapter 8 — Bracing the Option 11C Mini against earthquakes

553-3021-209 Standard 3.00 April 2000

When you have determined the required backboard size, make sure

the measurements are within the limits listed in Table 21.

2 Determine fastener requirements

You need the following information to determine fastener

requirements:

• What fasteners you must use.

• How deeply you must embed the fasteners into the wall.

• The vertical distance between fasteners.

• The horizontal distance between fasteners.

For wood and metal stud walls, determine this spacing by the

spacing between wall studs. Wall stud spacing must be within

the range listed in Table 22.

• The required wall stud sizes for wood and metal stud walls

Table 21

Backboard size limits

Backboard size

Minimum 2 ft by 6 ft (600 mm by 1800 mm)

Maximum 4 ft by 8 ft (1200 mm by 2400 mm)

Table 22

Stud spacing

Minimum 16 in. (400 mm)

Maximum 24 in. (600 mm)