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Our Size 3 adjustable steel builders’ trestles are designed for elevated, low-to-mid-height access, bridging the gap between basic trestles and full scaffolding setups. Featuring a generous 1070–1680mm height range with secure captive pin adjustments, they deliver a stable, high-capacity platform that’s quick to deploy and tough enough for demanding professional or large DIY projects.
With premium tubular steel construction, a 470kg safe working load (uniformly distributed at 1.2m centres), and full BS 1139 compliance, these trestles ensure reliable support for overhead tasks, high-wall work, and upper-level installations—keeping setup simple while prioritising safety and efficiency on site or at home.
Built from durable tubular steel with a 470kg safe working load (uniformly distributed at 1.2m centres) and certified to BS 1139, they combine lightweight portability (around 10.5kg each) with heavy-duty reliability, perfect for busy sites, roofline maintenance, high-wall finishing, or large home extensions where fast setup and breakdown save valuable time.
| Specification | Details |
| Product type | Adjustable builders trestle |
| Size | Size 3 |
| Material | High-strength tubular steel (galvanised or powder-coated) |
| Adjustable height | 1070 mm – 1680 mm (captive pin adjustment) |
| Width | Approx. 970 mm |
| Safe working load | 470 kg uniformly distributed |
| Compliance | BS 1139 compliant |
| Typical weight | Approx. 10.5 kg per trestle |
Size 3 builders’ trestles are most often used on projects requiring extended vertical reach without erecting full scaffold systems, including:
Trestles are commonly paired with BS 2482 compliant European whitewood scaffolding boards to form longer, elevated working platforms across wider areas.
Always position on firm, level surfaces
Use scaffold boards rated for the expected load
Maintain even load distribution across the platform
Do not exceed the stated safe working load
Carry out a site-specific risk assessment in line with UK Work at Height Regulations
Where edge protection or alternative access systems are required, these should be considered before use
Size 3 trestles are best chosen when additional working height is required, and Size 2 trestles do not provide sufficient reach. They are suited to elevated tasks where stability and load capacity remain essential.
When set up correctly with suitable scaffold boards and evenly distributed loads, a pair of Size 3 trestles can support up to 470 kg.
Yes. They are manufactured from heavy-duty steel and tested to BS 1139, making them suitable for professional trade environments and demanding site conditions.
Yes. The galvanised or powder-coated finish makes them suitable for outdoor use, provided they are inspected regularly and stored correctly between jobs.
Yes, despite the taller 1070–1680mm range, each Size 3 trestle remains reasonably portable at around 10–11kg and folds compactly for transport. The detachable pin system allows quick breakdown into flatter components for easier loading into vans or storage in tight spaces. Tradespeople commonly carry one per shoulder or wheel them on a trolley for multi-room jobs, making them far more manageable than setting up a full scaffold tower for similar heights.
This size is typically selected when ladders are unsafe and smaller trestles do not provide adequate working clearance.
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