While reading a social media advice page I came across a question from someone who had bought hardwood doors for internal use from one supplier and hardwood frames from a large DIY store and were experiencing problems while fitting the doors to the frames. The frames had a rebated groove which was causing problems for the fitting of the hinges. It appears that the hardwood frames were probably designed as Fire Door frames and required an Intumescent strip fitting into the groove, or as they were hardwood were external door frames with a groove for a weather seal. This highlights the problems of purchasing doors and frames separately and from suppliers who do not give specific advice. In this instance it appears that the purchaser needed Internal Hardwood frames for standard doors, not FD30 doors.
It’s important to choose doors and frames from a specialist door supplier who will advise you on the correct frame kit for the doors you are purchasing, and the specific fire door regulations if you require this. Many people are very capable DIY enthusiasts and can fit door frames and doors, however, these days there are many options available and the large mega stores often provide a limited range of products. A reputable door supplier will have a variety of door frame kits.
Note: Timber door frames are usually not pre-jointed and consist of separate, individual length, components which can be cut and adjusted to suit your desired door size opening.
External timber door frame kits are usually in Red Hardwood or American White Oak timber which is pre-sanded ready to paint or stain. (it is important to use a finishing product recommended by the supplier). The rebates on the frame are suitable for a standard 44mm exterior door thickness. Look for suppliers who provide door frame package which includes the Jamb, Head, Weather Seal, Sill, Rain Deflector and Threshold to make sure you have the required components, this will state the cost of everything included.
Internal timber door frame kits are now available in a great range of types including standard Knotty Pine Softwood suitable for painting, or Oak veneer wrapped MDF frames which can be supplied as standard or suitable for Fire Door requirements. The MDF frames can be supplied ready to finish or pre-finished and ready to fit. Look for frame kits supplied with a loose door stop that can be glued and pinned in position as these can suit a door with a 35-44mm door thickness. The frame will need two upright legs ‘Jambs’ and one single shorter length ‘Head’ from the same section therefore five lengths will make 2 door openings.
We often take the humble door frame for granted but it is an important part of any door opening.