Internal Joinery Guide for London Homes in 2025: Internal Doors, Skirting Boards, Architraves, Staircases, Fitted Wardrobes, and Costs

Internal door specification (panel doors, flush doors, FD30 fire doors, engineered core vs hollow core, door lining, ironmongery), skirting boards and architraves (Victorian profiles, material choice, sizing, installation), and staircase and balustrade specification (newel post, handrail, spindle spacing Building Regulations, glass balustrade) for London homes in 2025: INTERNAL DOOR SPECIFICATION FOR A LONDON HOME: DOOR TYPES: PANEL DOOR (RAISED AND FIELDED OR FLAT PANEL): the panel door is the historically correct door for Victorian and Edwardian London terraced houses; a 4-panel or 6-panel Victorian door (with raised and fielded or ogee-routed panels) provides the correct architectural character for a period London home; for a contemporary London refurbishment, FLAT PANEL DOORS (shaker-style 5-panel or single panel with a horizontal mid-rail) are fashionable and commercially well-received; FLUSH DOOR: a flat-faced door (MDF or plywood veneer over a hollow or solid core — see below); appropriate for modern, contemporary, or commercial-style interiors; increasingly popular in London new-build and contemporary refurbishments; HOLLOW CORE vs ENGINEERED CORE: HOLLOW CORE (TUBULAR CHIPBOARD CORE): lowest cost; poor sound insulation (Rw approximately 23-26 dB — very thin acoustic barrier); poor for FD30 fire door (hollow core cannot meet the 30-minute fire resistance rating); acceptable ONLY for rooms where sound insulation and fire resistance are NOT required (cupboard doors, low-use areas in investment properties); SOLID CORE (SOLID TIMBER STAVED OR PARTICLE BOARD CORE): significantly better sound insulation (Rw approximately 29-35 dB); some solid core doors can achieve FD30 fire rating with the appropriate intumescent strip; ENGINEERED CORE (LVL — LAMINATED VENEER LUMBER CORE): increasingly common in premium doors; dimensional stability (less likely to warp than solid timber); good sound insulation; can be lipped on all four edges for later trimming; FIRE DOORS — FD30: WHEN FIRE DOORS ARE REQUIRED IN A LONDON HOME: Part B of the Building Regulations requires FD30 (30-minute fire-resistance) doors in specific locations; the MOST IMPORTANT PRACTICAL CASE IS: ANY REFURBISHMENT, EXTENSION, OR LOFT CONVERSION THAT CREATES AN ADDITIONAL HABITABLE STOREY (E.G., A LOFT CONVERSION TO A THIRD FLOOR) REQUIRES: FD30 FIRE DOORS ON ALL ROOMS OPENING OFF THE STAIRCASE ENCLOSURE (the staircase must be a PROTECTED STAIRCASE — an enclosed route to an escape exit); this requirement is frequently missed and is a COMMON REASON FOR FAILING THE BUILDING CONTROL INSPECTION; FD30 SPECIFICATION: FD30 fire door must be: CERTIFIED (either CE-marked to EN 16034:2014 or third-party certified to BS 476 Part 22) — the FD30 rating must be evidenced by test certification; fitted with a SELF-CLOSING DEVICE (Perko loop or concealed door closer) — fire doors must close automatically; fitted with INTUMESCENT STRIPS (heat-activated foam that expands to seal the gap around the door in a fire — typically combined with cold smoke seals); fitted in an APPROPRIATELY SPECIFIED DOOR FRAME (steel channel lining or hardwood lining to FD30 performance specification); DOOR LINING AND ARCHITRAVE: DOOR LINING (ALSO CALLED DOOR FRAME OR DOOR CASING): the softwood or MDF box frame set into the structural opening that the door hangs in and closes against; the LINING must be set plumb and square — a poorly set lining will result in a door that swings open or closed under gravity (because the hinges are not truly vertical) and will bind on one edge; STANDARD LINING SIZES: 119mm or 133mm lining set for a 102mm stud wall + plasterboard; IRONMONGERY FOR INTERNAL DOORS: HINGES: for a standard door (40kg): pair of 76mm (3-inch) butt hinges in satin or polished stainless steel, solid brass, or antique brass; for a heavy door (over 60-70kg): THREE HINGES recommended; HANDLES AND LATCHES: LEVER HANDLES are most practical for domestic use; KNOBS (ROUND) are less practical but acceptable for period-style rooms; PRIVACY BOLTS (bathroom and WC doors): avoid tumbler-type bolts that require a coin to turn from outside — use a lever or thumb-turn bolt that the door owner can operate from the inside; DOOR STOPS: rubber or timber door stops to prevent the handle or door from damaging the plaster wall; SKIRTING BOARDS AND ARCHITRAVES FOR A LONDON HOME: SKIRTING BOARDS: skirting boards are the profiled timber moulding fixed to the perimeter of the room at floor level; they protect the base of the plaster wall from foot and furniture damage and provide a decorative finish to the junction between floor and wall; CORRECT PROFILES FOR A VICTORIAN OR EDWARDIAN LONDON HOME: TORUS PROFILE: a convex semicircular profile on the upper face — the most common Victorian skirting profile in London terrace houses; OGEE PROFILE: an S-curve profile (concave then convex) — a more decorative Victorian alternative; CHAMFERED AND BULLNOSE: an angled chamfer on the upper face with a rounded (bullnosed) edge — also common in London Victorian and Edwardian properties; CONTEMPORARY PROFILES: PENCIL ROUND (a single small rounded edge); SQUARE EDGE (completely flat-faced — a very contemporary, architectural finish); MATERIAL: SOFTWOOD (PINE OR SPRUCE): the traditional material; paints well; easier to cut and fix than MDF; the correct choice for a period London home; MDF: machine-accurate profiles; very smooth paint finish; does NOT hold fixings as well as softwood; NOT recommended for floor-level skirting in occupied properties because moisture at floor level causes MDF to swell at the bottom edge — particularly relevant in London homes with older ground floors that have some moisture movement; ENGINEERED HARDWOOD (OAK, TULIPWOOD): appropriate where the skirting is to be left in a natural or stained finish; TYPICAL SKIRTING SIZES FOR A LONDON HOME: GROUND FLOOR: 150mm to 180mm height × 20-25mm thickness (larger, more imposing skirting on the ground floor is historically correct for a Victorian terrace); FIRST FLOOR: 119mm to 150mm height × 18-20mm; SECOND FLOOR / LOFT: 75-100mm height is acceptable; ARCHITRAVES: the profiled moulding that frames the door opening; should match or complement the skirting board profile; standard section 70mm × 18mm for first floor, 75mm × 20mm for ground floor; FIXING SKIRTING AND ARCHITRAVES: TRADITIONAL METHOD: lost-head oval wire nails or cut floor brads into the wall or window board behind; MODERN METHOD: CONSTRUCTION ADHESIVE (Gripfill or similar) combined with panel pins (or a pin gun); adhesive-only fixing not recommended for skirting over 100mm height — gravity and thermal movement in the skirting board will cause adhesive-only boards to de-bond over time at the top edge; STAIRCASE AND BALUSTRADE FOR A LONDON HOME: KEY TERMS: NEWEL POST: the structural vertical post at the bottom and top of each staircase flight and at quarter-landings; HANDRAIL: the continuous rail that users grip when using the stair; mounted at 840-1,000mm height above the pitch line of the stair; BALUSTRADE: the assembly of handrail + spindles + newel posts that forms the guard along the open side of the stair; SPINDLES (BALUSTERS): the vertical infill members between the handrail and the string (bottom rail); BUILDING REGULATIONS PART K — SPINDLE SPACING: CRITICAL RULE — a sphere of 100mm diameter must NOT be able to pass between spindles; MAXIMUM SPACING between spindles: 99mm (in practice, 95-97mm spacing is used for a safe margin); this is a BUILDING CONTROL INSPECTION POINT and is strictly enforced; glass balustrades with a continuous panel avoid the spindle spacing issue entirely; BUILDING REGULATIONS PART K — HANDRAIL HEIGHT: 840mm minimum to 1,000mm maximum measured vertically from the pitch line (the nosing of the stair treads) to the top of the handrail; TRADITIONAL STAIRCASE RENOVATION FOR A LONDON VICTORIAN TERRACE: the most common renovation is to: REPLACE WORN OR MISSING SPINDLES (baluster turning or square stock spindles in pine or hardwood); REPAIR OR REPLACE THE HANDRAIL (refurbish in situ or fit a new hardwood handrail — oak, ash, or pine — in the same profile as the existing, using special handrail bolts through the newel post); TIGHTEN THE NEWEL POST (a loose newel post is a very common defect — address with a bolt-through fixing from the floor newel post into the stringer or floor structure); REPAIR OR REPLACE STAIR TREADS AND RISERS (solid timber treads — typically softwood — at 220mm going [horizontal depth of the tread] and 175-220mm rise [vertical height of each step]); GLASS BALUSTRADE FOR A CONTEMPORARY LONDON STAIRCASE: CHANNEL-SET GLASS PANELS: toughened or laminated safety glass panels (minimum 10mm toughened or 8.8mm laminated for domestic stairs) set into a RECESSED CHANNEL at the base (bolted to the floor or string) and secured by the handrail above; NO visible side fixings — a very clean architectural appearance; BOLT-FIXED (FRAMELESS GLASS): toughened glass (min 12mm) with countersunk stainless steel point fixings (FASCIA fixings) at each corner; HANDRAIL ON GLASS BALUSTRADE: a continuous hardwood, stainless steel, or chrome handrail routed into the glass panels or fixed via brackets on top of the glass;

Fitted wardrobe and alcove unit specification (sliding doors, hinged doors, interior fitting, alcove shelving and cupboard units, material choice) and internal joinery costs for London homes in 2025: FITTED WARDROBES FOR A LONDON HOME: FITTED WARDROBES vs FREESTANDING WARDROBES: in London homes where bedroom sizes are often constrained — the typical double bedroom in a Victorian terrace is 3.5m × 3.0m to 4.0m × 3.5m — FITTED WARDROBES that use the full available wall and ceiling height maximise storage capacity significantly; fitted wardrobes are also a commercial asset in a London property sale — good fitted wardrobes are consistently mentioned in estate agent descriptions of desirable properties; SLIDING DOOR FITTED WARDROBES vs HINGED DOOR FITTED WARDROBES: SLIDING DOOR: ADVANTAGE — the doors do not swing into the room (important in a small bedroom where floor area is limited); DISADVANTAGE — at any one time, only half the wardrobe interior is accessible (the other half is behind the door); only appropriate where the wardrobe is at least 1.2m wide; POPULAR SYSTEMS: Spacepro, Neville Johnson, Strachan (full bespoke); HINGED DOOR: ADVANTAGE — full access to the interior; DISADVANTAGE — requires floor clearance for the door swing (typically 400-600mm from the wardrobe face); appropriate where floor area allows; INTERIOR FITTING: RAIL HANGING SPACE: a 600mm minimum depth is required for coat hangers to hang without fouling the back panel; a good fitted wardrobe allocates approximately 60% of the total interior volume to HANGING SPACE and 40% to SHELVING and DRAWERS; SHELF SPACING: for a folded clothing shelf: 300-350mm vertical spacing; for shoes: 150-200mm vertical spacing; DRAWER UNITS: BLUM TANDEMBOX or BLUM LEGRABOX drawer systems (as used in premium kitchen units) are the premium option — the quality of the soft-close drawer mechanism is immediately apparent to a buyer; MATERIAL OPTIONS FOR FITTED WARDROBES: PAINTED MDF (SPRAY-PAINTED FINISH): the most popular finish for fitted wardrobes in London premium residential interiors in 2025; spray-applied primer + topcoat in a water-based eggshell or satin finish (NOT brush-applied — brush marks are visible in painted joinery); FABRIC-WRAPPED MDF: a linen or fabric wrap over MDF for a soft, tactile wardrobe front — popular in luxury developments; TIMBER VENEER: a real wood veneer (typically oak, walnut, or maple) on an MDF substrate — the correct choice for a natural timber aesthetic in a contemporary interior; MATT LACQUERED PANELS: factory-lacquered MDF panels in RAL or NCS colours; CARCASS CONSTRUCTION: the structural box of the wardrobe should be 18mm MDF or 18mm melamine-faced chipboard (MFC) — a 15mm carcass is too flexible for a floor-to-ceiling wardrobe; adjustable shelf pins in the side panels allow shelf heights to be modified; ALCOVE STORAGE AND SHELVING UNITS IN LONDON VICTORIAN TERRACE HOUSES: THE ALCOVE: Victorian terrace houses typically have a CHIMNEY BREAST projecting into the principal rooms (front and rear reception rooms on the ground floor); the chimney breast creates ALCOVES on either side — the recesses between the chimney breast and the party wall (or external wall); these alcoves are a defining feature of the Victorian terrace interior and should be treated as a design opportunity rather than a problem; ALCOVE SHELVING (OPEN SHELVING): TRADITIONAL ALCOVE SHELVING: painted MDF or timber shelves with a PAINTED TIMBER FACE FRAME (the visible frame around the front of the alcove — typically a simple cased opening); adjustable shelf positions using bookcase pins in a timber strip or directly into MDF shelf supports; ALCOVE SHELVING DEPTH: 220-250mm for books; 200-220mm for a living room display shelf; ALCOVE CUPBOARD UNITS (FITTED JOINERY): for a more complete fitted-joinery solution in the alcoves of a Victorian terrace: LOWER SECTION: cupboards with hinged or push-to-open (no-handle) doors, providing enclosed storage from floor to worktop height (approximately 900mm); UPPER SECTION: open shelving or glazed-door cupboards above worktop height; the worktop can be used as a writing surface, display surface, or bar; the complete alcove unit (floor-to-ceiling, across the full width of the alcove) is one of the most commercially valuable internal joinery investments in a London Victorian terrace — it appears in virtually every high-value residential London property listing; ALCOVE UNIT FACE FRAME MATERIAL: painted MDF or painted softwood face frame; the carcass can be MDF or melamine-faced chipboard; PAINTING FITTED JOINERY IN LONDON: SPRAY-APPLIED FINISH: all fitted joinery in a London home refurbishment should be spray-painted (airless spray gun — not aerosol and not brush) with a WATER-BASED EGGSHELL OR SATIN FINISH PAINT (e.g., Mylands Pure Flat, Farrow & Ball Full Gloss, Little Greene Intelligent Eggshell, or Dulux Trade Diamond Eggshell); the spray process produces a very smooth, even finish that is not achievable with a brush or roller; brush-applied paint is visible on smooth, flat joinery surfaces when viewed in raking light; INTERNAL JOINERY COSTS IN LONDON IN 2025: INTERNAL PANEL DOOR (SUPPLY AND HANG — INCLUDING LINING, HINGES, HANDLE AND LATCH): HOLLOW CORE: approximately £150-£250 per door (supply + hang); SOLID CORE: approximately £250-£400 per door (supply + hang); FD30 CERTIFIED FIRE DOOR (SUPPLY AND HANG — INCLUDING LINING, INTUMESCENT STRIP, SELF-CLOSER, HANDLE): approximately £350-£600 per door (supply + hang); SKIRTING BOARDS (SUPPLY AND FIX — SOFTWOOD TORUS OR OGEE — PER LINEAR METRE INCLUDING INTERNAL AND EXTERNAL MITRES AND SCRIBING): approximately £20-£45/m; ARCHITRAVES (SUPPLY AND FIX — SOFTWOOD — PER DOOR SET, BOTH SIDES): approximately £80-£180 per door set; STAIRCASE RENOVATION (SPINDLES, HANDRAIL REFURB — TYPICAL LONDON VICTORIAN TERRACE STAIR): approximately £800-£2,500 depending on condition and scope; GLASS BALUSTRADE (SUPPLY AND INSTALL — CHANNEL-SET — PER LINEAR METRE): approximately £400-£900/m; BOLT-FIXED FRAMELESS GLASS BALUSTRADE: approximately £500-£1,200/m; FITTED WARDROBE (SPRAY-PAINTED MDF — SUPPLY AND INSTALL — PER LINEAR METRE OF WARDROBE FACE): approximately £800-£2,500/m depending on complexity (sliding door, interior fitting, depth); ALCOVE UNIT (LOWER CUPBOARDS + UPPER SHELVING — SPRAY-PAINTED MDF — SUPPLY AND INSTALL — PER ALCOVE): approximately £1,500-£4,500 per alcove depending on size and specification.