Above are photos of embossing patterns; they do not represent wood mouldings in stock. These embossings can be used to design a custom wood moulding profile. However, the cost is considerable and should not be considered, unless large quantities are desired.
Embossing patterns are obtained with heat and pressure from a circular metal die that rotates over and into the wood moulding. The metal die has the embossing pattern cut into the circumference of the wheel. The embossing machine causes the wood moulding to pass between the rolling embossing wheel (die) above and a drive wheel below. By lowering the embossing wheel, more pressure is exerted on the wood, resulting in a deeper impression of the pattern into the wood molding. Heating the embossing wheel, allows the pattern to "burn" into the wood without splintering.
Custom profiles can be designed to incorporated these embossings into the wood moulding. Since the cutting knives are make in-house, virtually any pattern can be manufactured. That portion of the molding which contains the embossing must conform to the embossing wheel (die), but the rest of the profile is open to design. Some of these patterns can be found on crown moulding; most of them are found on picture frame moulding.
Poplar is considered the best wood for accepting deep embossing. We also emboss on basswood, ramin, ash, oak and soft maple. Hard maple is too hard for deep embossing.
These embossings can be used on picture frame moulding, architectural mouldings, such as crown moulding, and also trim moulding.