Table 4.

Hole enlargement resistance scores reflecting the hole size and type of hole enlargement for Method 1

Damage type	End hole size
	< 5 mm	6–20 mm	≥ 21 mm
None	100	80	40
Laddering	80	64	32
Unravelling	50	40	20
Tearing combined with laddering or unravelling	40	32	16