Foundations

What Wood Actually Is

Wood is a natural composite of aligned plant cells, and that structure explains grain, strength, and movement.

How Trees Grow and How That Becomes Wood

Trees become timber by adding seasonal layers of new wood from the cambium, creating growth rings and the sapwood/heartwood zones you see on every board.

Hardwood vs Softwood

Hardwood vs softwood is a botanical classification (angiosperm vs conifer), and the underlying cell structure helps you predict grain, texture, and typical behaviour in the workshop.

The Structure of Wood Cells

Wood is built from a few main microscopic cell types and a composite cell wall, and that structure explains pores, grain, strength, and movement.

Growth Rings Explained

Growth rings record seasonal growth changes in a tree, and learning to read them helps you predict grain pattern, stability, and movement in boards.

Heartwood vs Sapwood

Heartwood and sapwood are zones within the same tree, and the difference matters most for durability, appearance, and treatment decisions.

Earlywood vs Latewood

Earlywood and latewood are the two seasonal bands inside each growth ring, and the difference helps explain density contrast, sanding texture, and strength tendencies in timber.

Grain Direction and Why It Matters

Grain direction is fibre orientation, and it controls strength, splitting, tearout, and movement in every board.

Reading the End Grain of Wood

End grain is the fastest “truth surface” for checking how a board was cut, spotting defects, and getting reliable identification clues.

How Logs Become Boards

Sawing patterns set growth-ring orientation in boards, which drives grain appearance, stability, warp risk, and yield.