3T Scaffold Tower Hire

1. Build from below

Each frame section is passed up through the trapdoor in the platform. The operator stays below the next deck level throughout.

2. Guardrails before standing

All four guardrails are installed to the upper platform before the operator climbs through. No unprotected deck at any point.

3. Repeat to full height

The sequence repeats for each lift. Guardrail height is 1,000mm with intermediate rail, 2m vertical between platforms. Stabilisers are added as the tower grows.

Facade & Render Work

Three-storey external rendering, cladding, and brickwork. The 3T method is the documented safe approach when build safety is a formal requirement.

First-Fix & Second-Fix

Electrical, plumbing, and mechanical installs on three-storey builds. Double width gives full working clearance around the trapdoor for tools and materials.

Window & Door Installs

Upper-storey window and door fitting where stable, levelled platform access beats ladder work. Single width fits tight runs between buildings.

Signage & Inspection

Sign and fascia installs at commercial frontages, and inspection or maintenance work where a documented safe build method is required.

Single Width (0.85m)

Access is tight, the tower has to sit close to a wall, or you only need operator plus tools on the deck.

Double Width (1.45m)

You need room for the trapdoor plus full working clearance, or two people need to pass each other. For dual climb, use Twin-Access.

1.8m Platform

Most jobs. Easier to manoeuvre, smaller stabiliser footprint, quicker to reposition between work points.

2.5m Platform

Long runs, laying out materials, working a horizontal stretch without moving the base. Ideal for rendering and cable runs.

Above 10.2m? Step up to the Twin-Access (up to 14.2m working height / 12.2m platform, with two climb faces).

Sub-6m solo job? The MiTower or Miniscaff Solo are lighter and faster to deploy.

Uneven ground or stairwell? Use the Stairwell Tower with adjustable legs.

Two simultaneous climbers? The 3T is single climb face. The Twin-Access has dual climb faces for two-person work.

What does “3T” actually mean?

Through-The-Trapdoor. It’s a build sequence, not a brand. Every section is added from inside the guardrails via the platform trapdoor, so the operator is never standing on an unprotected deck. HSE points to this as the recommended method for mobile access tower assembly.

Do I need PASMA training?

Yes, for work use. PASMA is the UK standard for mobile access tower training, and HSE expects operators to be competent. If you’re a trained operator, 3T will feel familiar because it’s the method PASMA teaches.

What’s the difference between single and double width?

Single is 0.85m wide, double is 1.45m. Single fits tight access. Double gives you usable deck space around the trapdoor and more room to work across. Rung spacing and SWL are the same on both.

The spec says 0.85m — why does the tower measure closer to 900mm?

Tower widths are quoted as nominal industry categories: 0.85m single and 1.45m double refer to the frame size (850mm / 1450mm). Measured outside-to-outside, a single-width tower is approximately 900mm and a double-width approximately 1500mm. Your tower is not oversized — this is how EN 1004 towers are specified across the industry. For tight access, measure the narrowest clear opening (door frame, corridor, gate) against the external width before booking. Unsure? Call 020 3375 4048 and we will check it with you.

Which platform length: 1.8m or 2.5m?

Pick 2.5m when you’re working along a run (rendering, running cable, fitting a long fascia) and don’t want to keep repositioning. Pick 1.8m when access is tight, you’re working in a cluster, or you’ll be rebuilding in a different spot frequently.

Can I go above 10.2m?

Not with this tower. For higher platforms (12.2m platform, around 14.2m working height), use the Twin-Access, which also gives you two climb faces for two-person work.

Working height 10.2m: can I reach a 10m wall?

Reaching is different from standing. 10.2m working height means you can work on surfaces up to about 10m with your arms raised from the deck. The platform itself will be at approximately 8.2m.

What’s the difference between 3T and AGR towers?

Both are safe assembly methods. With 3T, you work from inside the guardrails, fitting components through the trapdoor. With AGR (Advance Guard Rail), you clip guardrails to the frame from the platform below before climbing. Both are PASMA-approved. The right choice depends on the tower system your site specifies.