Your wall, to the centimetre. Bookcase, wall shelf or TV unit.
Increased automatically if a shelf gets too long.
Average height, adjusted to fill the full height.
Taller at the bottom, shorter at the top, like an antique bookcase.
Measure at the top, middle and bottom, and keep the smallest.
Floor to ceiling, on the left, centre and right: keep the smallest.
The height is then the ceiling height: a recessed filler, trimmed on site, closes the top.
A 4 cm scribe filler at each end, trimmed on site to the wall.
15 cm: paperbacks and comics. 20 to 25 cm: novels. 30 to 35 cm: coffee-table books. 40 cm: TV unit.
Shelf pins and handles.
On shelf pins, with only a few holes around each shelf. A few shelves stay fixed for rigidity.
In one piece: 38 mm (board) or 40 mm (solid).
So we can supply the right fixings.