slate window cills 20mm thick Internal / External use
Slate cills are suitable for any window opening and will standout in both modern and older type properties this is one of the reasons it has been used for centuries in the construction industry for both interior and exterior uses.
We can cut unto 1.5 metre cills in one single piece larger than than and they are generally made in 2 equal lengths to the specs you require . If you would like more information on our bespoke cutting service or a quote on on our 20mm thick cills please contact us where our sales team will be only to happy to assist.