House Rules: Size

Size Modifiers and Statistics

Table: Size Modifiers

Size Categories Attack Bonus, DV CMB, CMD Fly Stealth
(-1) (x2) (x2) (+2) (x2)
Fine +8 -8 +8 +8
Diminutive +4 -4 +6 +4
Tiny +2 -2 +4 +2
Small +1 -1 +2 +1
Medium +0 +0 +0 +0
Large -1 +1 -2 -1
Huge -2 +2 -4 -2
Gargantuan -4 +4 -6 -4
Colossal -8 +8 -8 -8
(+1) (x2) (x2) (-2) (x2)

Table: Size Statistics

Size Categories Space Natural Reach Default Land Speed Typical Height Typical Weight
(-1) (x1/4 sqr.) (+2 acts/sqr.) (x1/2) (x1/8)
Fine 1/256 sqr. 0 ft. 2 acts/sqr. 1/4 to 1/2 ft. 1/64-1/8 lb.
Diminutive 1/64 sqr. 0 ft. 5 ft. 1/2 to 1 ft. 1/8-1 lb.
Tiny 1/16 sqr. 0 ft. 10 ft. 1 to 2 ft. 1-8 lbs.
Small 1/4 sqr. 1/2 sqr. 20 ft. 2 to 4 ft. 8-60 lbs.
Medium 5 ft. 5 ft. 30 ft. 4 to 8 ft. 60-500 lbs.
Large1 10 ft. 10 ft. 40 ft. 8 to 16 ft. 500-4,000 lbs.
Huge1 15 ft. 15 ft. 50 ft. 16 to 32 ft. 2-16 tons
Gargantuan1 20 ft. 20 ft. 60 ft. 32 to 64 ft. 16-125 tons.
Colossal1 25 ft. 25 ft. 70 ft. 64 to 128 ft. 125-1,000 tons.
(+1) (+5 ft.) (+5 ft.) (+10 ft.) (x2) (x8)
1The values for this size category are for tall creatures. For long creatures, reduce their reach by 5 ft.

Changing Sizes

When you increase your size, add a +2 size bonus to Strength, a -2 size penalty to Dexterity, and a +1 size bonus to Constitution per size increase.

When you decrease your size, add a -2 size penalty to Strength, a +2 size bonus to Dexterity, and a -1 size penalty to Constitution per size decrease.

Then apply your new size modifiers to your attack bonus, DV, CMB, CMD, Fly skill, Stealth skill, and land speed as listed in Table: Size Modifiers and Table: Size Statistics.

Size changes from different effects stack together (even if the base rules say they should not), but size changes from the same effect do not (the enlarge person spell from two different casters on the same target do not stack; enlarge person is only applied once, and subsequent castings only reset the spell's duration).

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