Compatible replacement parts

Every EN 1004 tower is certified as a system: frames, braces, platforms, castors and stabilisers designed, tested and rated together. Replacement parts keep that certification intact only when they belong to the same system — which is why "will this fit?" is the most important question in the spares aisle.

Why near-fit is no fit

• Claw and rung sizes differ subtly between systems; a claw that snaps on loosely can release under vibration.
• Brace lengths are set by frame geometry — a 20 mm difference changes the tower's squareness and guardrail heights.
• Platform hooks and wind locks are profiled to their frame's rung; mismatched platforms can seat insecurely.
• Ratings travel with the system: a mixed tower has nobody's rating and no manual that describes it.

Identifying what you own

Check the manual first — it lists every component with part numbers. No manual? Look for stamped or stickered markings on frames and platforms, measure rung spacing and frame width, and photograph the claw profile. Send us those photos and measurements and we will identify the system — we do this weekly for customers with inherited towers.

Mixing ages of the same system

Buying the same manufacturer's current parts for an older tower is usually fine where the system has stayed dimensionally consistent — but confirm against part numbers rather than assuming. Where a design changed (platform latches are the classic case), the manual revision notes or a quick call settles it.

What never to improvise

Guardrails, platforms, castors and stabilisers — the components that hold people, or hold the tower up. Scaffold tube and fittings from a different discipline are not tower parts. Braces, castors, platforms, trapdoor decks, toe boards and stabilisers for our range are all in the spares section, and the castor guide covers the most-replaced item of all.