Independent Tied Scaffolds

An independent tied scaffold has two rows of standards connected by transoms and tied back to the building.
Ties are the most critical element — they prevent the scaffold from overturning away from the structure.
Tie patterns must follow the scaffold design; typical spacing is every 4 metres along and every lift.
Through-ties anchored into the structure are preferred over box ties or reveal ties for reliability.
Missing or removed ties are the leading cause of scaffold collapse in the UK construction industry.
Wind loading on sheeted or netted scaffolds is significantly higher and requires additional ties.
The scaffold must be inspected by a competent person before first use and at least every seven days.
The Work at Height Regulations 2005 require scaffolds to be erected and used in accordance with design.
Scaffold tags (green, amber, red) indicate the status and must be checked before every access.
Only CISRS-qualified scaffolders may erect, alter, or dismantle independent tied scaffolds.

Prevent collapse	Scaffold collapses caused by missing or inadequate ties have killed and seriously injured workers and members of the public.
Wind loading	Scaffolds sheeted for weather protection act as sails. Without adequate ties, wind can overturn the entire structure.
Legal requirement	The Work at Height Regulations 2005 and TG20 compliance guidance require scaffolds to be tied in accordance with design.

Do

Don't

Check the scaffold tag is green before accessing any independent scaffold.
Verify that ties are in place at the required spacing before each use.
Report any missing, loose, or damaged ties to the scaffold supervisor immediately.
Ensure only CISRS-qualified scaffolders erect, alter, or dismantle the scaffold.
Inspect the scaffold at least every seven days and after adverse weather.
Use through-ties to the structure in preference to reveal or box ties.
Increase tie density where sheeting, netting, or signage adds wind loading.
Maintain full boarding with toe boards and guardrails on all working platforms.
Keep the scaffold clear of excess materials that add unnecessary loading.
Follow the scaffold design drawing for all tie positions and configurations.

DON'T remove scaffold ties to create access or for any other reason.
DON'T use a scaffold tagged amber or red without supervisor authorisation.
DON'T alter the scaffold by adding boards, removing braces, or moving standards.
DON'T overload the scaffold beyond the safe working load on the design.
DON'T erect sheeting or netting without checking the tie design allows for it.
DON'T climb the scaffold framework instead of using the designated access ladder.
DON'T assume the scaffold is safe because it was inspected last week.
DON'T allow non-CISRS personnel to modify any part of the scaffold.
DON'T ignore scaffold movement, creaking, or visible deflection during use.
DON'T tie off to the scaffold unless it has been designed to accept that load.

See also: Scaffold Ties and Stability | Scaffold Inspection and Tagging

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