Using mahogany, oak and beech, our door strips are available in double- and single-ramp profile styles to suit carpet-to-carpet, carpet-to-vinyl and carpet-to-natural flooring. They are also available in two widths (32mm and 45mm) and two lengths (1m and 2m). All our hardwoods are sourced from managed forests and FSC-certified suppliers and finished by hand with two coats of oil to produce a smooth soft sheen finish that enhances the beauty of the wood. The non-toxic oil used is water and heat resistant and the same used on many children's wooden toys. And, unlike many 'cheap' softwood alternatives using dyes and varnishes, Cotswold Thresholds can be re-finished to restore them to an as-new condition. All door thresholds can be fixed directly to concrete floors using a quality builders glue (Gripfill, No More Nails, etc.) or countersink drilled to wooden floors using the metal brackets supplied. Because wood is a natural product, each carpet threshold is unique in appearance. Therefore grain and colouring will vary with each threshold.