Structures
Contents
| Structure | Cost |
|---|---|
| Barbican | 37,000gp |
| Bastion | 9,000gp |
| Civilian building, stone | 3,000gp |
| Civilian building, wood | 1,500gp |
| Drawbridge | 500gp |
| Gatehouse | 6,500gp |
| Keep | 75,000gp |
| Moat | 400gp |
| Subterranean passage | 500gp |
| Tower, large | 30,000gp |
| Tower, small | 15,000gp |
| Wall, castle | 5,000gp |
Descriptions
Barbican: Heavily fortified entry/exit point in a castle wall: two small towers, a gatehouse, and a drawbridge.
Bastion: Semi-circular tower built against a castle wall. 30’ base, 30’ high, walls 5’ thick.
Civilian building, stone: Two levels; wooden stairs, doors, floors, and roof; attic. Outer wall 120’ long (e.g. 30’×30’), walls 1–2’ thick.
Civilian building, wood: Two levels; wooden stairs, doors, floors, and roof; attic. Outer wall 120’ long (e.g. 30’×30’).
Drawbridge: Raisable wooden bridge crossing a moat. May be attached to a gatehouse. 10’ long.
Gatehouse: Fortified entry/exit point in a castle wall. Includes a portcullis. 30’×30’ base, 20’ high, walls 5’ thick.
Keep: Fortified, central building of a castle. 60’ square, 80’ high, walls 10’ thick.
Moat: Defensive ditch, often filled with water. 100’ long, 20’ wide, 10’ deep.
Subterranean passage: Typical 10’×10’×10’ dungeon passageway.
Tower, large: Round tower, either freestanding or built into a castle wall. 30’ base, 40’ high, walls 5’ thick.
Tower, small: Round tower, either freestanding or built into a castle wall. 20’ base, 30’ high, walls 5’ thick.
Wall, castle: Stone wall with battlements. 100’ long, 20’ high, 10’ thick.
Non-Standard Dimensions
Bastions
Bastions of dimensions other than those listed may be constructed. Use the guidelines for towers, below, and divide by two.
Castle Walls
Higher castle walls may be constructed at increased cost. A 100’ length of 30’ high wall costs 7,500gp. Every additional 10’ of height beyond this (up to a maximum of 60’ high) costs 5,000gp.
Towers
Towers of dimensions other than those listed may be constructed. The cost is determined by the height of the tower and the diameter of its base (in feet).
- Maximum height: Twice the base diameter.
- Up to the base diameter: Each 10’ of height costs 200gp × the base diameter.
- Above the base diameter: Each 10’ of height costs 400gp × the base diameter.
Example Tower Cost Calculation
A 60’ high tower with a 40’ diameter base is to be constructed.
The cost will be 8,000gp (40 × 200gp) per 10’ for the first 40’ of height and 16,000gp (40 × 400gp) per 10’ for the remainder of the height.
The total cost is thus (8,000gp × 4) + (16,000gp × 2) = 64,000gp.
Interior Features
The common interior features of a stronghold are listed in the table below.
Simple Approach
For simplicity, the cost of a stronghold may be increased by 25% to account for interior details, including: reinforced doors, stone stairs, flagstone flooring, tile roofing, windows or arrow slits, bars and shutters on windows, and standard furnishings.
Detailed Approach
If the group wishes to perform more detailed calculations or if additional features are desired, the table below may be consulted.
| Detail | Dimensions | Cost (gp) |
|---|---|---|
| Arrow slit | — | 10 |
| Door, iron | 3’ wide, 7’ tall | 50 |
| Door, reinforced wood | 3’ wide, 7’ tall | 20 |
| Door, stone | 3’ wide, 7’ tall | 50 |
| Door, wood | 3’ wide, 7’ tall | 10 |
| Floor, flagstones or tiles | 10’×10’ section | 100 |
| Floor, wood | 10’×10’ section | 40 |
| Roof, tiled | 10’×10’ section | 100 |
| Roof, wood | 10’×10’ section | 40 |
| Secret door or trapdoor | Normal | 5 × normal |
| Shifting wall | 10’×10’ section | 1,000 |
| Stairs, stone | 3’ wide, 10’ long section | 60 |
| Stairs, wooden | 3’ wide, 10’ long section | 20 |
| Trapdoor, iron | 4’×3’ | 120 |
| Trapdoor, reinforced wood | 4’×3’ | 40 |
| Trapdoor, stone | 4’×3’ | 120 |
| Trapdoor, wood | 4’×3’ | 20 |
| Window | — | 10 |
| Window bars | — | 10 |
| Window shutters | — | 5 |
