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How to Choose the Right Coping Width for Your Parapet?
Technical Guide 2026
Choosing the right width
for your coping
An incorrectly sized coping cannot properly fulfil its waterproofing role. Too narrow, it lets water through. Too wide, it overhangs unnecessarily and may suffer from wind. Here is how to choose the right series in 3 simple steps.
Step 1 — Measure your wall or parapet
Use a tape measure to measure the total width of the top of your wall or parapet, including the thickness of any render. This dimension determines which coping series to choose.
Total width
Measure the top of the wall from edge to edge, including render.
Side returns
Allow 30 to 40 mm of return on each side for waterproofing.
When in doubt
Always choose the larger series — wider = better protected.
Step 2 — Choose the corresponding series
Each SuissePliage series is designed to cover a range of wall widths. Find your measurement in the table below:
| Wall width | Recommended series | Max. coverage |
|---|---|---|
| Up to 110 mm | Series 150 mm | 110 mm |
| Up to 160 mm | Series 200 mm | 160 mm |
| Up to 210 mm | Series 250 mm Popular | 210 mm |
| Up to 260 mm | Series 300 mm | 260 mm |
| Up to 310 mm | Series 350 mm | 310 mm |
| Up to 360 mm | Series 400 mm | 360 mm |
Step 3 — Plan your accessories
Each SuissePliage series includes a complete set of compatible accessories for a professional installation:
1
90° Corners
For internal and external corners — clean finish without on-site cutting.
2
Junction sleeves
To join two copings end-to-end with guaranteed waterproofing.
3
End caps
To neatly close off the ends of the wall.
4
Grooved brackets
For concealed clip fixing — no visible screws.
?
SuissePliage Tip
When in doubt between two series, always choose the larger one — a slightly wider coping offers better protection and a neater finish.
Found your series?
Configure your custom copings and get an instant price, no commitment.
Posted in:
Guides & Tips
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taille couvertine
By: Matilda On 03/28/2026super article tres intéressant , je ne savais pas quoi prendre et maintenent j'ai tout compris.