Before You Buy Internal Doors: What a Carpenter Checks First
Many internal door fitting problems start before fitting begins.
Doors, hinges, handles and locks are often chosen before the existing openings, frames, trimming allowance and hardware requirements have been checked. That can lead to wrong sizes, unsuitable doors, extra labour or a compromised finish.
ShearLine Solutions specialises in internal door supply and fitting across Milton Keynes and surrounding areas. For most replacement door projects, the existing openings are assessed first so suitable doors, hardware and materials can be specified before a written quotation is provided.
Why internal doors should be checked before ordering
Internal doors are rarely just a like-for-like product swap.
Even where the existing doors appear standard, the actual fitting conditions can vary from opening to opening. Older frames may be out of square, floors may not be level, previous doors may have been over-trimmed, and existing hardware positions may not suit the replacement doors.
Before ordering internal doors, it is worth checking:
whether the existing frames are square and suitable
the actual size of each opening
how much trimming the selected doors allow
whether new flooring affects door clearance
whether existing hinges, handles, latches or locks are suitable
whether door stops need adjusting or replacing
whether the chosen door style and construction suit the property
What gets checked before internal doors are supplied or fitted
A proper internal door replacement assessment may include:
Existing door sizes
The size of the existing door is useful, but it should not be treated as the full specification. Door openings can vary, and previous doors may have been cut down or badly fitted.
Frame and lining condition
The existing frames need to be checked for movement, damage, poor previous fitting, loose stops, twist, or repair work that may affect the finished result.
Squareness and fitting margins
New doors need clean, even margins and reliable closing. If an opening is out of square, the fitting method and door choice need to take that into account.
Flooring clearance
New flooring or carpets can reduce clearance under the door. This should be considered before the door is ordered or trimmed.
Door construction and trimming allowance
Not all internal doors can be trimmed by the same amount. Hollow-core, solid-core, oak, prefinished and glazed doors can all have different limitations.
Hinges, handles, latches and locks
Hardware affects the specification. Latch backset, handle type, lock type, hinge size and door weight all need to be considered before materials are ordered.
Door stops and door thickness
Changing from one door thickness to another can affect how the new doors close against the stops. In some cases, door stops may need adjusting or replacing.
Disposal of old doors
For replacement projects, disposal of old doors can be included where agreed as part of the quotation.
Common problems when internal doors are bought first
Buying doors before the openings are checked can create avoidable problems, including:
doors ordered in the wrong size
doors needing more trimming than the manufacturer allows
prefinished doors being compromised by excessive cutting
hollow-core doors being cut beyond their usable edges
handles or locks not suiting the selected door
existing hinges being reused when replacement is more appropriate
door stops not suiting the new door thickness
extra labour being needed because the specification was not checked first
This is why internal door replacement is best treated as a measured and specified job, not simply a product purchase followed by labour.
Bought internal doors already?
If you have already bought internal doors, they can be checked for suitability before fitting is agreed.
The existing openings, door sizes, trimming allowance, hinge positions, latches, locks and handles still need to be assessed before the work can be confirmed. In some cases the doors may be suitable. In others, the specification may need changing before fitting would be sensible.
ShearLine’s internal door replacement process
For most internal door replacement projects, ShearLine follows a controlled process:
Existing openings and frames are assessed
Suitable doors and hardware are specified
A written quotation is provided for the agreed scope
Doors, hinges, handles, latches or locks are supplied where included
The doors are fitted into the existing frames
Old doors are disposed of where agreed
This keeps measuring, specification, supply, fitting and responsibility for the finished result together.
Internal door supply and fitting in Milton Keynes
ShearLine Solutions supplies and fits internal timber doors across Milton Keynes and surrounding areas.
Work can include full-house internal door replacement, multi-door projects, prefinished doors, oak doors, white internal doors, glazed doors, hinges, handles, latches, bathroom privacy locks and related door stop adjustments.
For larger replacement projects, a site visit is usually recommended before quoting.