Division 16 of the UK SIC 2007 list. It holds 1 code, listed in full below with the number of active UK companies filed under each.
The official title is long, but in the UK this division is mostly joinery workshops. The main code is 16230, other builders' carpentry and joinery. Firms using it make staircases, doors, window frames, roof trusses and bespoke timber parts for the building trade. Sawmilling and timber treatment businesses also sit here, in much smaller numbers. One thing separates 16230 from the installation codes in division 43. It is the workshop. These companies make the product before anyone fits it.
Joinery manufacturers sell almost entirely into construction. So the people selling to them mirror the building supply chain: timber merchants, machinery dealers, CNC tooling suppliers and trade credit insurers. Builders and fit-out contractors use the same data the other way round, to find local workshops for bespoke jobs. A new incorporation often means an experienced joiner setting up alone. That is the moment for equipment finance and workshop insurance. Plenty of workshops win work by reputation and let their website slide. The poor-website filter turns that into a clear list.
Use 16230 if you make joinery in a workshop: staircases, doors, trusses and the like. That holds whether or not you fit them yourself. Use 43320, joinery installation, if your work is fitting products made by others on site. Firms that truly do both can list both codes. The split mainly affects how buyers and insurers read your company. Companies House never queries it.
File your next confirmation statement (form CS01) with the new codes. The change shows on the public register once it is accepted. There is no separate application, no evidence to supply and no decision to wait for. You can add codes instead of replacing them, up to four in total. That suits a business moving between activities slowly.
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