timber - trees in a forest regarded as a source of wood. / material wood, (UK) timber, (US) lumber - wood that has been pre-cut and is ready for use in construction.

one shaku and one sun

in ancient China, the paperboard on which the imperial decree was written, or the imperial decree

shaku (measurement) / measure

the shaku, "metal shaku", or Japanese foot: a traditional Japanese unit of length equal to 10 sun (寸) or ¹⁄₁₀ jō (丈), standardized as ¹⁰⁄₃₃ of a meter

a bamboo measure

one day

one, 1 / the first in order, foremost / the beginning / the best / a kind of; one of something / (card games) an ace / unity / the bottom string of a shamisen or other Japanese musical instrument

each person

an elbow bone; an ulna