Where's the problem?
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Where is the problem?
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Gaps between internal steps - treads should lock together - serious and urgent
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Stair treads off-level - subsidence in close or rot in timber supports to landing - serious
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Stair tread cracks - may be sign of serious problem
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Stair tread cracks - may be crack in previous surface repair
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Worn stair treads - resurface if hazardous
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Gaps between outside steps - mortar washed away or metal supports rusted