Larch Beams Supplied by Crowe’s Sawmills Ltd by csmills | Feb 17, 2015 | Testimonials Larch Beams Larch Beams Larch Beams supplied by Crowe’s Sawmills, these beams were constructed on site. Stained with a Light Oak Stain. These Beams are 250mm x 125mm and 175mm x 125mm, used throughout.