PreQ ESD - 1.2 Selecting wood

Softwood definition

Trees with needle-like leaves, evergreen and grows quicker than hardwood

Hardwood definition

Deciduous trees that grow slowly and sometimes have twisted trunks

Manufactured boards definition

made from the waste wood left over from conversion. Cheaper than solid wood and can be made into large sheets that do not warp or twist easily.

Sawn size

rough sawn sizes that can be up to 3mm than planned size

PBS

Planned both sides, planed on the top and bottom only

PAR

Planed all round

A

Planks, 225-375 × 50+

B

Boards, 100-250 x <40

C

Strips, 25-100 × 9 - 25

D

Squares 25+ x 25+

E

Dower, 4-25

F

Half-round, 6-25

G

Quadrant, 10-25