This Redwood Internal Door Casing Set provides a deeper timber lining for fitting internal doors where the wall opening requires a wider frame. The casing is manufactured from redwood softwood with a finished section measuring 33 x 144mm, corresponding to a nominal size of 38 x 150mm. The 144mm depth makes it a useful choice for thicker internal wall constructions where a narrower door lining would not provide sufficient coverage. Suitable for new installations and renovation work, the casing provides the timber framework for hanging an internal door. The components can be cut and fitted to suit the opening, subject to the dimensions of the supplied set.