Tread detailing

The traditional 'cased in' stair has a nosing edge dictated by the housing joint of the riser (Figure 6.7a). A further complication occurs with cut strings where the nosing profile is reflected as a trimming feature to each exposed step (Figure 6.7b). Carpet finishing in such circumstances implies painted margins and the unsightly look of the selvedge behind the balusters. Straight strings avoid these complications (Figure 6.7c).

A complaint about open timber tread stairs is their noisiness in use and the difficulties that arise in coverings. Replaceable nosings will permit a range of finishings to be applied, the treads being considered as individual trays (refer back to Figure 6.2c).

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