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Timber, veneer and the details between them.

Material intelligence.

BirchFolio is a specimen library for the architectural workshop: a place to compare face character, section geometry and conditioning notes before writing a project specification.

Mortise and tenon section study Dimensioned conceptual timber section. Dimensions are illustrative and require project verification. SECTION A—A dimensions in mm GRAIN / DATUM FINISHED STOCK DETAIL
Fig. 1 · Timber section study Schematic / not for fabrication

Specimen schedule

Nominal dimensions are reference examples. Inches, when selected, are rounded to three decimal places.

Reference Material / detail Nominal size Specification focus
BB–18 Cross-laminated birch panel 18 mm Face repairs and edge plies
AS–22 Kiln-conditioned ash board 22 mm Grain and moisture variation
SL–30 Solid timber acoustic slat 30 mm Width and open spacing
VN–01 Rotary-cut birch veneer 1.5 mm Layup and matching
JT–08 Loose-tenon reference 8 mm Fit after conditioning
BK–12 Backing panel specimen 12 mm Fixing and support

Start at the edge

An exposed panel edge tells a different story from its face. Count the plies, inspect voids and describe whether the edge will be filled, lipped or left visible. A clean face does not establish a structural performance class.

A small, deliberate library

The library follows Baltic birch, ash boards and slatted assemblies through their workshop decisions. Each reference is a design specimen rather than a stock listing. Dimensions are illustrative starting points for drawings, not purchase-ready orders.

Specification sheets that travel well

Every chapter is a printable HTML sheet. Use the print control for a clean document suitable for saving as PDF. No registration is required, and the sheet retains its conditioning notes and limitations when printed.

Appearance is only one requirement

Keep face selection, bonding class, dimensional tolerance and the intended service environment separate in a specification. A material can meet an appearance brief and still be unsuitable for a damp interior or a load-bearing application.