A joiner makes things out of timber in a workshop. A carpenter builds with timber on site. That single sentence covers most of it. The joiner cuts and glues joints to create doors, staircases, windows and fitted furniture. The carpenter takes timber and fixes it in place, building roof structures, floors, stud walls and the framework of a building.
The confusion is understandable. Both trades work with wood, both are trained through the same apprenticeship route, and in everyday speech people use the words interchangeably. Plenty of skilled tradespeople genuinely do both. But the distinction still matters when you are writing a job description, comparing quotes or trying to work out why one company’s price is double another’s.
This guide sets out the practical differences, shows which trade handles which job, and helps you decide who to call.
The core distinction
Start with the words themselves. Joinery is named after the joints. A joiner’s craft is joining pieces of timber together using techniques such as mortise and tenon, dovetails, dowels and biscuits, forming a unit that holds together through the joint itself rather than through nails or screws.
Carpentry comes from the Latin for a wagon maker, and the trade has always been about structure. A carpenter fixes timber into a building, works to structural tolerances, and relies on nails, screws, bolts and brackets.
The everyday version:
- If the item has to be made before it can be fitted, it is joinery
- If it is built in place as part of the fabric of the building, it is carpentry
A staircase is joinery, because it is made in a workshop and delivered. The floor joists it sits on are carpentry, because they were cut and fixed in position.
Side by side comparison
| Joiner | Carpenter | |
| Works mainly | In a workshop | On site |
| Makes or fits | Makes, then installs | Fits and builds in place |
| Typical output | Doors, stairs, windows, fitted furniture, cabinetry | Roof timbers, floors, stud walls, decking, formwork |
| Fixings | Cut and glued joints | Nails, screws, bolts, brackets |
| Tolerances | Fractions of a millimetre | Millimetres |
| Equipment | Fixed workshop machinery: saws, planers, spindle moulders | Portable power tools and hand tools |
| Weather | Works indoors year round | Often outdoors and exposed |
| Finishing | Frequently includes spraying or polishing | Rarely, the item is usually painted later by a decorator |
| You need them for | New wardrobes, a staircase, a bespoke kitchen | A loft conversion, a new floor, a garden structure |
What a joiner does
A joiner spends most of the working week in a workshop. The sequence on a typical job runs: survey the space, produce drawings, machine the timber, assemble the components, finish them, then install.
Common joinery work includes:
- Fitted wardrobes and bedroom furniture built wall to wall and floor to ceiling
- Alcove units, cupboards and shelving either side of a chimney breast
- Bespoke kitchens made as individual cabinets rather than standard modular boxes
- Media walls and TV units with hidden cable routes and ventilation
- Staircases, including new builds and replacement treads, spindles and handrails
- Internal and external doors, plus frames and ironmongery
- Timber windows, sashes and casements
- Panelling, skirting, architrave and cornice, including matching existing period profiles
- Commercial joinery such as bar counters, reception desks and shop displays
- Spray finishing and French polishing of the completed items
That last point is worth pausing on. A dedicated spray booth produces an even, flat surface with no brush marks, and French polishing builds up many thin coats of shellac by hand to bring out the depth of natural grain. Doing this in controlled conditions matters, because dust, humidity and temperature all affect how a coating cures. It is not something you can replicate on a landing with a paintbrush.
What a carpenter does
A carpenter works where the building is. The job is usually structural, often at an earlier stage of a project, and frequently outdoors.
Common carpentry work includes:
- Roof structures, cutting rafters on site or erecting prefabricated trusses
- Floor joists and floorboards, including levelling and firring
- Stud walls and partitions, framing new internal divisions
- Loft conversions, including new floor structures and dormer framing
- Timber frame construction for extensions and outbuildings
- Decking, pergolas and garden structures
- Formwork and shuttering, temporary timber moulds for concrete
- First fix work, the structural timber that gets hidden behind plasterboard
- Second fix work, hanging doors and fitting skirting once plastering is complete
You will often hear carpenters described as first fix or second fix. First fix is everything that happens before the walls are closed up: joists, studwork, roof timbers, door linings. Second fix is what happens afterwards: hanging doors, fitting skirting and architrave, fixing handrails.
That second fix stage is exactly where the two trades blur, because a joiner may have made the doors and skirting that a carpenter is now fitting. On smaller jobs, the same person does both.
Where the two overlap
In real projects the line is rarely clean, and most jobs need both skills.
| Job | Carpentry part | Joinery part |
| Media wall | Building the stud framework | Making and finishing the cabinetry |
| Loft conversion | New floor structure and dormer framing | Fitted eaves storage, doors, staircase |
| Kitchen | Levelling floors, framing false walls | Making and installing the cabinets |
| New extension | Roof and floor structure | Doors, windows, skirting, built-in storage |
| Bar fit-out | Framing the counter base | Counter top, panelled front, back bar shelving |
This is why most established firms describe themselves as offering carpentry and joinery rather than one or the other. Splitting a job between two separate trades creates a coordination problem, because the joinery has to be measured against framework that a different contractor built.
Regional and international differences
The distinction is not used the same way everywhere, which adds to the confusion when you are searching online.
- In the UK, Ireland and Australia, the joiner and carpenter split is standard and widely understood
- In the United States and Canada, “carpenter” covers nearly everything, and joinery is usually described as cabinet making or millwork
- In Scotland, “joiner” is often used as the general term for both trades, so a Scottish joiner may well be building your roof
If you are reading advice or price guides online, check where they were written. American cost guides in particular will not map onto a UK job.
Which one do you need?
Work through this quickly.
You need a joiner if:
- You want fitted wardrobes, alcove units or built-in storage
- You are replacing a staircase or its spindles and handrail
- You need doors or windows made to a non-standard size
- You want to match existing period skirting, architrave or panelling
- You need a bespoke kitchen or a bar counter made
- The finish matters visually and needs spraying or polishing
You need a carpenter if:
- You are converting a loft or building an extension
- You need a new floor structure or floorboards laid
- You are building or altering internal stud walls
- You want decking, a pergola or a garden structure
- You need roof timbers cut or trusses erected
You need both if:
- You are renovating a whole room or house
- You are fitting out a commercial space
- The job involves building a framework and then finishing it visibly
When in doubt, describe the outcome rather than the trade. “I want built-in storage either side of the fireplace” gets you a better answer than “do I need a carpenter or a joiner?”
Working on older buildings
Jersey has a great deal of granite, and older cottages, farmhouses, converted outbuildings and townhouses present problems that neither trade can ignore.
- Walls that lean or bow. A rigid unit pushed against a curved granite wall will rock or leave a wedge-shaped gap. The joinery fix is scribing, cutting the edge to follow the wall’s actual profile.
- Floors that fall. A 20mm drop across three metres leaves a visibly tilted worktop unless each carcass is levelled independently and the difference is absorbed in the plinth.
- Reveals of varying depth. Thick rubble walls mean a window reveal can change depth along its length, so a shelf or seat has to be cut to match rather than to one measurement.
- Salt air and humidity. Coastal conditions are harder on timber and finishes than an inland site, which makes moisture-resistant materials and fully sealed edges a practical requirement rather than an upgrade.
Older buildings also blur the trades further, because a job that starts as joinery frequently uncovers structural work. Removing a rotten window sill can reveal a lintel that needs attention, which is carpentry.
Three jobs that show the difference
These are composite examples of the kinds of work that come up regularly.
A loft conversion with fitted eaves storage. The carpentry came first: a new floor structure sized to carry habitable loads, dormer framing, and a stud partition to form the new room. Only once that was in place could the low eaves cupboards be measured, because the finished internal dimensions were not known until the framing and plasterboard were up. The doors and drawer fronts were then made and sprayed in the workshop and installed as a separate visit.
A period townhouse with missing skirting. One room had lost its original mouldings during earlier work and nothing off the shelf matched. This is pure joinery: a section of the surviving profile was copied, cutters ground to suit, and new lengths run in the workshop. The fitting itself, cutting mitres and scribes on site, is second fix carpentry. Once painted, old and new sections are indistinguishable.
A restaurant fit-out. The counter base was framed on site to fix to the floor and take the load, which is carpentry. The curved front panelling, counter top and back bar shelving were built and sprayed off site, which is joinery, so the venue lost as little trading time as possible. The two stages were done by the same team, which removed the risk of the finished panels not matching a framework built by someone else.
Frequently asked questions
Is a joiner better than a carpenter?
Neither is better, they are different specialisms. A joiner is the right choice for made-to-measure items where the finish and precision are visible. A carpenter is the right choice for structural timber work. Asking a joiner to build a roof, or a carpenter to make a French polished bar counter, is asking for work outside their day-to-day.
Can a carpenter make fitted wardrobes?
Many can, but the result depends on whether they have workshop facilities. Building wardrobes on site from sheet material is possible and can look good, but you will not get a sprayed finish or fine joints without a workshop and a spray booth.
Do joiners and carpenters have different qualifications?
They usually train through the same route, a City and Guilds or NVQ in Carpentry and Joinery, then specialise from Level 2 or 3 onwards. The qualification title often covers both, so ask what they actually do day to day rather than relying on the certificate.
Which trade should I call for a new staircase?
A joiner. The staircase itself is made in a workshop to the exact rise and going of your opening. If structural alterations are needed to the floor opening, that part is carpentry, and most firms handle both.
Do I need a joiner for doors?
Only if you want them made to a non-standard size or in a specific timber. Standard sized doors bought from a merchant can be hung by a carpenter as second fix work.
Can one company do both?
Yes, and for most home projects that is the sensible route. It removes the coordination risk of one trade measuring against another trade’s work, and it means a single point of responsibility if something does not line up.
Getting started
The most useful first step is describing the outcome you want rather than naming a trade. A survey will establish which parts of the job are structural, which are made to measure, and how the two need to be sequenced.
Davision Interiors Ltd covers both carpentry and joinery across all parishes of Jersey, from structural timber work and renovations through to fitted furniture, kitchens, staircases and commercial fit-outs, with spray finishing and French polishing carried out in house. Get in touch to arrange a site visit and a no-obligation quote.
Two notes outside the copy: the price ranges are estimates for the Jersey market and should be replaced with the client’s own figures, and the closing paragraph still needs a phone number or contact page link. I also added the opening title, as the version you pasted came through without one.