Yes — in many cases you absolutely can reuse your existing cabinet carcasses and simply replace the doors, drawer fronts, and hardware. This approach, sometimes called a cabinet refacing or door replacement, can give your kitchen or bathroom a dramatic makeover at a fraction of the cost of a full renovation. The key is making sure the existing carcasses are still structurally sound, square, and worth keeping.
Is Your Carcass Worth Keeping?
Before you order a single new door, spend time honestly assessing the condition of your existing cabinet boxes. Look for:
- Structural integrity — Push and pull on the carcass. It should feel rigid with no racking or wobble. Check that the back panel is still firmly attached.
- Moisture damage — Inspect under the sink and around dishwashers for swelling, delamination, or soft spots in the particleboard or MDF. Moisture-damaged carcasses are generally not worth saving.
- Square and level — Use a spirit level and a square. Carcasses that have shifted out of square will cause new doors to hang unevenly, no matter how carefully you fit them.
- Hinge rail condition — Check that the hinge mounting areas haven't been over-drilled or stripped from previous adjustments.
- Overall depth and height — Confirm the carcasses meet your needs. Standard NZ base cabinets are typically 870 mm tall (to suit a 900 mm benchtop) and 560–600 mm deep, but this varies.
If the boxes pass these checks, you're in good shape to proceed.
Measuring Up for New Doors
Accurate measuring is the most critical step. Even a couple of millimetres out can mean doors that don't align or gaps that look untidy.
Overlay vs. Inset Doors
First, understand what door overlay style you're working with:
- Full overlay — Doors cover nearly the entire face frame or carcass front, with only a small gap between adjacent doors. Most common in modern NZ kitchens.
- Partial overlay — Doors sit over the face frame but leave more of it exposed. Common in older kitchens.
- Inset — Doors sit flush inside the carcass opening. Requires very precise fitting and is less forgiving.
If you're changing overlay style, you may need to adjust or replace hinges.
How to Measure
- Measure the carcass opening (the actual hole), not the old door.
- Add your chosen overlay amount to each side to get the door size. For example, a full-overlay door on a 500 mm wide opening might be 496 mm wide, depending on the hinge and gap allowance — always follow your door supplier's specification sheet.
- Measure every opening individually — even in the same run of cabinets, sizes can vary slightly.
- Note the hinge boring requirements. Most European-style concealed hinges use a 35 mm cup hole bored 3–5 mm from the door edge. Confirm this with your door supplier.
Choosing New Doors
NZ suppliers offer doors in a wide range of materials — MDF wrapped in vinyl, painted MDF, solid timber, thermoformed, and two-pack polyurethane finishes. Each has different care requirements and price points. Get samples and check them in your home's light before committing.
If you're painting the carcass sides or interior to match, quality paint from Resene or Dulux in a semi-gloss or satin finish is easy to clean and holds up well in kitchens.
Replacing Hardware and Hinges
New doors are a great opportunity to upgrade your hinges, handles, and drawer runners:
- Soft-close hinges are now standard and widely available at Bunnings or Mitre 10.
- Drawer runners — If your existing drawers are on old-style rollers, consider upgrading to undermount soft-close runners for a much better feel. This may require new drawer boxes.
- Handles — Changing handle style can dramatically alter the look. Check the hole centres match or that you're happy to fill and re-drill.
Benchtop and Splashback Considerations
If you're keeping the existing benchtop, make sure new doors won't foul on the underside of the overhang. If you're replacing the benchtop at the same time, coordinate the sequencing with your tradesperson — benchtops are typically fitted after cabinets and doors are in place.
What a DIYer Can Reasonably Do
A confident DIYer with good measuring skills and basic tools can:
- Remove old doors and drawer fronts
- Hang new doors using concealed hinges (most come with adjustment screws for up/down, left/right, and in/out)
- Fit new handles
- Touch up carcass interiors with paint
However, cutting doors to size, boring hinge cups, and fitting inset doors requires precision machinery and experience. Mistakes in cutting are costly and usually irreversible.
When to Call a Professional
Consider engaging a qualified cabinet maker if:
- Your carcasses are out of square and need shimming or rebuilding
- You want inset doors or a non-standard overlay
- Doors need to be cut to custom sizes
- You're unsure about hinge boring or drawer runner installation
- The project involves moving or adding plumbing or electrical connections — these are restricted trades in NZ. Plumbing work must be carried out by a licensed tradesperson registered with the Plumbers, Gasfitters and Drainlayers Board, and electrical work by someone registered with the Electrical Workers Registration Board.
A skilled cabinet maker will also spot problems you might miss and can source doors through trade suppliers. You can find qualified local cabinet makers on tradedirectory.co.nz.
Safety note: When removing old doors, support them properly — full-height pantry doors in particular can be heavy and awkward. Use appropriate PPE if sanding or cutting MDF, as the dust is a respiratory irritant.
