How to measure a log store's real capacity

Use the clear rectangle available to the stack: width between posts × safe stack height × occupied depth. External dimensions are for fitting the product into the garden, not for calculating what it holds.

Take four measurements

1. Clear width: between the narrowest posts or side rails.
2. Stack height: floor bearer to the level that leaves a gap below the roof.
3. Occupied depth: normally the log length for one row, not the full roof depth.
4. Lost zones: shelves, braces, dividers and sloping corners.

Calculate each rectangular bay separately and add the results. Do not count a kindling shelf twice: its footprint is either log volume or shelf volume.

Published capacity needs context

A maker may calculate capacity from a full bounding box, while real logs leave an uneven upper edge. Treat that number as a comparison aid only when the method is clear. Your measured usable volume is the better planning figure.

Check access as well as arithmetic

A deep store might have enough cubic capacity but still make the rear row impossible to rotate. A tall store can reach the right number while leaving the upper courses awkward. Capacity that cannot be filled and emptied safely is not useful capacity.

Questions people ask

Should roof overhang be included?

No. Overhang protects the stack but does not create internal volume.

Do gaps between logs count?

Yes. Stacked volume is the rectangular envelope of the stack, including its ordinary small air gaps.

Sources

• Forest Garden Compact Pent Log Store — example of separately published external dimensions and stated capacity, checked 10 November 2026.