Door Care Guide


• Do not use an internal door for external use (and vice versa). This will create distortion problems as internal and external doors are manufactured to different moisture contents
• Check that the door furniture is suitable for the door e.g. the middle rail is deep enough for the letter box

When the doors arrive
• As soon as the door is delivered check for any visible defects, damage, marks or distortion
• Check pairs of doors are correctly handed
• Manufacturer’s specifications can change, and in the case of veneered doors there may be natural colour and grain variation
• Colour matching of veneers is not normally possible
• Issues must be reported to Champion Timber within 24 hours of delivery


• Doors should be stored in dry conditions, laid flat, off the floor and supported across the width in three places
• Unless factory sealed (check if all round), prime or seal on both faces and in particular all four edges
• Do not expose to extremes of temperature or humidity
• Do not store in a newly plastered room as the door will absorb moisture from the damp plaster
• Veneers can fade if exposed to natural sunlight
• Keep free of dust and site clutter to prevent damage


• All apertures vary slightly – do not assume all apertures require the same size glass. Measure each one independently

Preparation for decoration

• Once the door is fitted and operates correctly, take off the door and remove all ironmongery etc. ready for final decoration
• It is important that all exposed edges and cut-outs are sealed correctly

Finishing & decoration of non-factory finished doors

• Whatever type of decorative finish is used
• It is essential that both door faces, all four edges(particularly the top and bottom edges) and all cut outs are completely sealed in accordance with manufacturers instructions. This seals the door and reduces the possible ingress of moisture
• The same process applies to internal doors
• Failure to do this will invalidate the manufacturers

Engineered doors & non-factory finished veneered doors

• Water based and acrylic finishes are not recommended for the decoration of these doors.
• Use a spirit or solvent based product in accordance with the manufacturers instructions
• Light coloured veneers (especially oak) may fade in bright sunlight


• Fitting and finishing of all doors should be undertaken by a professional or a competent person
• It is essential to condition internal doors by storing them close to where they will be fitted. Avoid the door being subjected to extremes of heat or moisture e.g close to a radiator, or in a wetroom
• Avoid sudden changes in temperature – especially in a new building or extension
• In centrally heated or underfloor heated rooms take great care to build up the heat gradually
• Do not hang a door in an area that is about to be plastered or have other wet trades applied
• To avoid weakening the door, holes and mortice lock cut outs should be kept to a minimum and not fitted at a rail joint
• Check the door frame for general condition and squareness
• To prevent binding once decorated, and climatic expansion on external doors the door should fit in the frame with at least 3mm but no more than 6mm clearance all round
• If a door requires trimming to suit the frame, please refer to the manufacturers specific instructions for the door, (normally not more than 6mm from each side is removed)
• Height reductions will depend on the construction of the door and the depth of the top and bottom rails
• On factory treated or sealed doors it is essential to retreat edges as appropriate
• Generally unless specifically instructed otherwise, external doors should be hung with 3no good quality 100mm hinges
• Internal doors below 20kg can be hung using 2 hinges


• It is inevitable with all timber doors that some movement will occur.
• Swelling may cause the door to bind against the frame. Rectify this as soon as possible by trimming the effected area. Recoat and seal with the appropriate finish
• Shrinkage can cause minor parting of joints and hairline gaps. These should be filled and recoated as required
• Check to ensure the decorative coating has not deteriorated or been damaged/compromised
• Depending on the product used – maintenance coats should be applied every 2-3 years
• Generally south facing doors will require more maintenance