Convert Petrograd standards to Cord feet
Convert Petrograd standards (Pet. std) to Cord feet (cord ft) instantly and accurately.
Conversion Formula
cord ft = Pet. std × 10.3125
About Petrograd standards
The Petrograd standard (St Petersburg standard) = 165 ft³ = 4.6723 m³, representing 120 pieces of dressed Baltic softwood 12 ft × 11 in × 1.5 in = 165 ft³ exactly. Dominated 18th-19th century Baltic-to-Britain sawn-timber export trade from St Petersburg, Riga, and Danzig. Replaced by m³ in UK trade during 1970s metrication. 1 Petrograd standard = 165 ft³ = 4.6723 m³ ≈ 1,980 bf.
About Cord feet
A cord foot = 1/8 cord: a stack of firewood 4 ft wide × 4 ft tall × 1 ft deep = 16 ft³ = 0.45307 m³. Used in New England pulpwood purchasing and regulated by NIST Handbook 44. Actual solid wood content is only 60-80% of the nominal volume - the rest is air space between logs. 1 cord foot = 16 ft³ = 0.45307 m³ = 1/8 cord.
Quick Reference Table
| Petrograd standards (Pet. std) | Cord feet (cord ft) |
|---|---|
| 1 Pet. std | 10.3125 cord ft |
| 2 Pet. std | 20.625 cord ft |
| 5 Pet. std | 51.5625 cord ft |
| 10 Pet. std | 103.125 cord ft |
| 25 Pet. std | 257.813 cord ft |
| 50 Pet. std | 515.625 cord ft |
| 100 Pet. std | 1031.25 cord ft |