Cedral Trims Explained: Which Profiles and Fixings Do You Need?
Every Cedral facade needs a start profile at the bottom, a trim at each corner and stop end, perforated closures to protect the ventilated cavity, and the correct fixings for your substructure. Cedral Lap and Cedral Click use different trims and different fixings, so the most common ordering mistake is mixing them up.
This guide lists every Lap and Click trim we sell, what it does, where it goes and its price at the time of writing (ex VAT, 3m lengths unless stated). Trims are fitted before the boards. For setting out, fixing positions and spacings, always follow the Cedral fixing guide (PDF).
Cedral Lap trims
Lap trims are PPC (powder-coated) aluminium, colour matched to the boards. You can buy them in Cedral Lap trims and accessories.
| Trim | What it does / where it goes | Price (ex VAT) |
|---|---|---|
| Start profile | Starts the cladding run at the bottom of the wall, with a lip that covers the first batten. | £20.40 |
| Symmetric external corner | Finishes and protects external corners. | £33.79 |
| Asymmetric external corner | For the vertical edges of window and door openings: lapped boards on the facade, with a single board laid flat in the reveal. Fits on the left or right edge. | £29.54 |
| Internal corner | Finishes internal (inward-facing) corners. | £26.04 |
| End profile 45 | A stop end for runs that finish partway along a wall. Protects the board edges. The 45mm leg sits behind the boards. | £22.74 |
| End profile 65 | A stop end that also hides the battens from the side view. Covers timber battens up to 38mm deep. | £22.74 |
| Connection profile (Lap and Click) | Finishes Cedral used as a single board. On Lap it is for window and door reveals. | £19.41 |
| Plastic external corner cap (Lap) | Plastic cap for Lap external corners. | £1.46 each |
Cedral Click trims
Click trims are different profiles because Click is tongue-and-groove and secret fixed. The start profiles are plain aluminium. The corners and lintel come in a smaller colour range than Lap trims (roughly 10–12 colours at the time of writing), so check your colour on the product page. See Cedral Click trims and accessories.
| Trim | What it does / where it goes | Price (ex VAT) |
|---|---|---|
| Horizontal start profile | Supports the bottom row of horizontally fixed Click boards at the base of the wall. | £34.71 |
| Vertical start profile | Gives a base for the bottom edge of vertically fixed Click boards. | £15.15 |
| External corner | For 90° external corners, and as upright trims at window and door reveals. | £28.99 |
| Internal corner | For 90° internal corners. | £24.81 |
| Lintel profile | Fitted horizontally above windows and doors. Supports the next run of Click and hides the tongue and groove. | £25.64 |
| Connection profile (Lap and Click) | On Click, used as an end stop to cap an edge and to trim window and door reveals. | £19.41 |
| Plastic external corner cap (Click) | Plastic cap for Click external corners. | £1.05 each |
Perforated closures (insect mesh)
Cedral is a ventilated rainscreen system. Air enters at the bottom of the cavity behind the boards and leaves at the top. Perforated closures are aluminium profiles that keep insects, birds and debris out while letting air through. They go at the top and bottom of the battens, and above and below windows and doors. They come in 2.5m lengths:
- 30 x 40mm from £10.73
- 30 x 50mm from £10.96
- 30 x 70mm £13.35
- 30 x 100mm £18.43
Choose the size to suit your batten and cavity depth. If you are not sure which one you need, check the fixing guide or send us your batten size and we will tell you. For more on why the cavity matters, read Cedral facades: the importance of ventilation.
Fixings by substructure
Cedral Lap on timber battens
Lap is face fixed with nails or screws into treated timber battens:
- Stainless steel hammer-fix nails, 2.8 x 45mm ring shank, pack of 500, £25.56. For Lap only, not Click. The listing advises a pilot hole near board corners to help prevent cracking.
- Stainless steel countersunk screws, 2.8 x 45mm, pack of 200, £32.86. Self-tapping, no pre-drilling needed. Lap only.
- Colour-head fibre cement screws, 4.8 x 38mm, pack of 100, £51.27, in all 21 colours. For places where the fixing will be seen, such as the top run of boards.
For larger jobs there is also the SR90 gas nailer (£347.70) and Quikload stainless nails with fuel cell (£40.87).
Cedral Lap on a metal frame
Lap can also go on a metal frame with the right screws. Specification depends on the frame, so check the fixing guide or ask us before ordering.
Cedral Click on timber battens
Click is secret fixed with hidden stainless steel clips. On timber, use the Click clip and screw set (£103.92). Spare screws for Click clips are £22.62.
Cedral Click on an aluminium frame
Use the Click clip and rivet set (£103.92). The listing gives 250 clips and rivets per box, covering about 21m² (around 35 boards) at 7 fixings per board.
Other bits that are easy to forget
- Touch-up paint in all 21 colours, £25.14
- Walther Strong Cladtape 50mm x 20m, £20.12
- PE foil DPC 100mm x 30m, £6.69
- Tenmat FF102/50 ventilated cavity barrier, £22.59
- 10mm Gecko Gauge (pair, for Cedral Lap), £88.32
- Cutting: fibre cement jigsaw blades (3 for £8.17) and a diamond blade for fibre cement from £29.18
Where each of these goes in the build-up is shown in the fixing guide.
Checklists by job
Cedral Lap, horizontal, on timber battens
- Lap boards
- Lap start profile for the bottom of each run
- Symmetric external corners and/or internal corners
- Asymmetric corners or connection profiles for window and door reveals
- End profile 45 or 65 where runs stop partway along a wall
- Perforated closures, top and bottom and around openings
- Stainless nails or countersunk screws, plus colour-head screws for visible fixings
- Touch-up paint in your colour
Cedral Click, horizontal
- Click boards
- Horizontal start profile
- Click external and internal corners
- Lintel profiles above windows and doors, and external corners or connection profiles at reveals
- Connection profiles as end stops
- Perforated closures
- Clip and screw set (timber) or clip and rivet set (aluminium)
Cedral Click, vertical
- Click boards
- Vertical start profile
- Corners, reveal trims and perforated closures as above
- Click clip set to suit the substructure
Our Cedral Lap boards and trims and Cedral Click boards and trims collections put everything for each system in one place.
Cedral trims FAQs
Can I use Lap trims on Cedral Click?
Use the trims listed for your system. Apart from the connection profile, which works with both, we sell separate Lap and Click start profiles, corners and end trims, and the lintel profile is Click only. If you are thinking of swapping one for the other, ask us first.
What is the difference between End Profile 45 and End Profile 65?
Both finish a run that stops partway along a wall. The 65 version also hides timber battens up to 38mm deep from the side view.
Do I need perforated closures?
Yes. They let air move through the ventilated cavity while keeping insects, birds and debris out. Fit them at the top and bottom of the battens and around openings.
Which fixings do I need for Click on an aluminium frame?
The Click clip and rivet set. On timber battens, use the clip and screw set.
Are trims fitted before or after the boards?
Before. Start profiles, corners, end profiles and lintel profiles all go on first, with their legs sitting behind the boards.
Get your trim list checked
Send us your elevations through the Cedral quote form and we will list the boards, trims and fixings for your job. Order free Cedral samples first if you have not chosen a colour yet.