| Structure Prices | |
|---|---|
| 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 |
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.
Bastions of dimensions other than those listed may be constructed. Use the guidelines for towers, below, and divide by two.
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 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.
The common interior features of a stronghold are listed in the table below.
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.
If the group wishes to perform more detailed calculations or if additional features are desired, the table below may be consulted.
| Structure Interior Features | ||
|---|---|---|
| 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 |