The Internal Fully Finished Flush Walnut Fernor FD30 Fire Door features a contemporary, veneered design that is constructed with an engineered semi-solid veneered walnut core and is also completed with beautiful high-quality varnished finish. This Internal Flush Fire Door is available in a range of sizes to suit all standard applications and is also suitable for use in any room of choice. Fernor - Flush Walnut Collection The Flush Walnut collection from JB Kind is made up with a selection of contemporary walnut doors that have a real timber veneered construction which offers the look of a semi-solid core without the expensive cost price. This stylish door collection is available in a range of different designs and sizes to suit all preferences and also combines modern detailing with real wood veneers which will ensure that each door will look fantastic in any modern styled home. Each Internal door is manufactured with an engineered semi-solid construction and thick timber veneers that are pressed over the natural standard core and each door in this collection is also supplied fully-finished in a high-quality varnish. Core Type: Semi-solid core Trimming allowance: No allowance, trimming a Fire Door may affect its fire rating. Contact us for bespoke Fire Door sizes. Glazing: N/A - Solid panelled Weight: 27.5 - 33.5kg Fire Rating: This door has an FD30 Fire Rating (30 Minutes) Guarantee: 10 year manufacturer guarantee