Where to find hollow plastic board/planking 200 x 18-20mm

[harryagain]

Plastic fencing rails?

Fascia board? This is foam filled, not hollow BTW.

[Nick]

I've had a google but don't even know what I'm looking for. For a little project I'm after some plastic section. Hollow with internal reinforcing ribs. Min height 200mm, could be more. Width 18-20mm. Length 3-5m. Has to be fairly robust and light. Similar to the stuff used for trailer lighting boards but larger. Wood or metal will not fit the bill. Any thoughts please, Nick.

[The Medway Handyman]

[Brian Gaff]

Was there not some stuff like this made for conservatories as well? Not sure where you would ask. The length is a bit long though. Brian

[Robin]

Staff at their counter in E16 are friendly and helpful if you are unlucky enough to live near enough to call in when you need the odd bit of plastic.

I can't vouch for their staff in TMH (a possibly adopted "Kentish Man"[1]) territory :)

[1] following the division recorded in rather than the simple E/W of the Medway which was commonly adopted[1] in Kent when I lived there in the 60s

[The Medway Handyman]

Very nice people :-)

[stuart noble]

This maybe?

[fred]

Sounds something plastic fencing rail

[john james]

That isn't normally hollow.