Pressure to get scaffolding up and workers on it is something that happens on most construction sites.
A pre-use scaffolding inspection is a legal requirement, and skipping it is how preventable incidents happen. UK scaffolding regulations set out exactly when inspections must take place and who is qualified to carry them out.
This guide covers the scaffolding checks sites cannot afford to skip, why each one is important and what to do if something is not right.
What Checks Should be Carried Out on Scaffolding Before Each Use?
Before each use, someone with relevant scaffolding knowledge and experience should visually check:
- Ground conditions and base plates
- Tubes and couplers for damage or corrosion
- Working platforms and boards for gaps, movement or damage
- Guard rails and toe boards at every platform above two metres
- Ladder condition, angle and fixings
- The safe working load displayed on the structure
What Ground Conditions Mean for Scaffold Stability
A scaffolding’s base plates should sit flat on a firm, stable surface with sole boards underneath when the ground is soft or uneven.
If the ground has moved slightly after harsh weather, such as rain, frost or nearby groundworks, it needs to be flagged before any workers access the scaffold. Ground conditions change and an unstable base puts the entire structure at risk.
What to Look for on Tubes, Clamps and Fittings
On every scaffolding inspection, the following need to be checked across the full structure:
- Tubes showing signs of damage, corrosion or deformation
- Couplers/clamps that are loose or missing
- Fittings that have been substituted with non-standard components or forced into position
- Any coupler that moves by hand needs to be tightened or flagged to a CISRS-qualified person before the structure goes into use.
- Non-standard fittings pose a particular risk on sites where scaffolding has been modified mid-project, as this can compromise the load path across the whole structure.
Working Platforms and Boards
Boards that have been stacked, moved or disturbed since the last scaffolding inspection need to be checked again before the platform is used.
Do not assume they went back down in the same condition.
Four things to check on every platform before use:
- Boards are sitting flat with no bow or spring
- There are no gaps a foot could slip through
- Boards are secured so they cannot be kicked or lifted out of position
- There is no splitting, rot or edge damage
Edge Protection Failures Are a Leading Cause of Falls from Scaffolding
All three requirements below are legal requirements under the Work at Height Regulations 2005. At active sites, specifically check for guardrails that have been removed to ease access and not replaced. This is one of the more common failures found during formal scaffolding inspections.
| What’s required | When it applies |
|---|---|
| Top guard rail | All platforms above 2 metres |
| Mid-rail | All platforms above 2 metres |
| Toe board | All platforms above 2 metres |
What About Ladder and Access Points?
Ladders need to extend at least one metre above the landing point and be tied at both the top and bottom.
Check that rungs are undamaged and clear of mud, ice or debris, as a slippery or broken rung at height is a major issue. The angle matters too because a ladder pitched too shallow or too steep significantly increases the risk of it slipping or overbalancing under load.
Access hatches should open and close properly. If one is left propped open at the platform level, it becomes a significant risk for anyone moving across the platform without realising it is there. Regular inspections will make sure they are closed and secure during work.
Exceeding the Safe Working Load Puts the Whole Structure at Risk
Every scaffold has a safe working load, so site managers must clearly display it on the structure. If you’re not sure of the SWL, find out what it is before any materials or equipment go on the platform.
Overloading a scaffold will happen gradually.
That could be materials stockpiled from a previous shift, additional equipment brought up mid-job and multiple workers concentrated on one section, collectively pushing a structure beyond its rated capacity without a single decision to overload it.
The SWL applies to the combined weight of workers, tools and materials at any one time.
When Was the Last Formal Scaffolding Inspection
A pre-scaffold use visual check and a formal scaffolding inspection should not be used interchangeably.
The daily check identifies obvious defects, including a displaced board, a missing guard rail or a ladder that has shifted overnight.
But a formal scaffolding inspection by a CISRS-qualified inspector assesses the whole structure:
✓ Foundations
✓ Standards
✓ Ledgers
✓ Ties
✓ Bracing
✓ Edge protection
✓ Findings recorded and signed off before the end of that working period
So, how often should scaffolding be inspected? Under the Work at Height Regulations 2005, formal inspections must happen at three specific points:
- Before first use – The scaffold must be inspected and signed off before anyone accesses it for the first time, with no exceptions.
- Every seven days – Not approximately weekly. Every seven days, regardless of how much or how little the structure has been used in that time.
- After anything that could have affected stability – High winds, vehicle impact, modification to the structure — any of these triggers a new inspection before the scaffold goes back into use.
The inspection report must be completed before the end of the working period in which the inspection takes place and shared with the client or employer within 24 hours.
Records stay on site until the project is complete and are then retained for a minimum of three months. If the record has lapsed when you check it, work stops until it is resolved.
When the Scaffold Safety Checklist Flags a Problem
If there’s an issue, no matter how small, take it out of use. Then report it to the site supervisor or scaffolding contractor and put it in writing.
A verbal report on a busy site is easily missed and harder to evidence if something subsequently goes wrong. Written records also create a clear picture over time, with recurring defects flagged through a scaffold safety checklist, providing the scaffolding contractor with useful information on where maintenance and re-inspection should be focused.
The Best Person to Check Scaffolding Before Use
Pre-use checks need someone with enough knowledge and experience to recognise a defect.
There is no set qualification for the daily check, but if the person doing it cannot identify a problem, the check is worthless, which is why experience with scaffolding is essential.
Formal inspections require a CISRS Scaffolder card endorsed with Inspection for standard structures, and a CISRS Advanced card endorsed with Inspection for complex ones.
CISRS SITS qualifications are valid for 5 years (always verify the expiry date on the card).
If the person carrying out the inspection cannot identify a defect, the inspection has not been carried out.