QUALITY &
CERTIFICATION.

A register of what we actually hold, what we check, and what is still being confirmed. Specifiers judge a supplier by what it publishes, so this page publishes the position rather than a badge.

Certification position

CERTIFICATION STATUS

Our certification position is being finalised and will be stated here in full, with the issuing body and the document behind it. Until then this page makes no compliance claim.

We would rather publish the position once, in one form, with the document behind it, than carry a badge we cannot evidence on request. If your tender needs a specific certification, ask and we will tell you exactly where we stand.

What we check on every batch

These are process controls, not certifications, and they are stated as such.

CASTINGIn-house beds, own supervision team
DIMENSIONAL CHECKAgainst the quoted size before dispatch
SURFACE FINISHVisual check before dispatch
REINFORCEMENTY12 bar top and bottom on drain cover slabs; BRC A10 on catch pits
COMPRESSIVE STRENGTHTest regime stated on request
CONCRETE GRADESpecified per order
LOAD CLASSNot published - ask on enquiry

Load ratings

No load class is published for any Zentra product today. The only distinction currently drawn is between use on a traffic area and use on a pedestrian or walkway area, which is noted on the angle frame drawings. If your specification requires a load class, say so on the enquiry and it will be answered directly rather than guessed at here.

One named contact, two lines, same-day answers.