Here is one for the Extensions If you happen to have Xtool D1 or D1 pro with extensions this can be achieved easily at this size. These signs are approx. 24"-30" long and approx. 9" wide. Top layer being 1/4" (6.3mm) birch and base layer your choice of pine, oak, walnut, maple 3/4" ( 19mm) at this size these signs are a real eye catcher.