| 摘要 |
A step layout device for giving a visual and physical representation of riser and tread dimensions which have been or are being selected for a stairway, wherein the device has at least one lower and one upper pair of planar members, the members of each pair having cooperating vertical ruled portions and cooperating adjustable connector mechanisms adapted to planarly connect the members of each pair in selected vertically dimensioned riser postures, the pairs having adjacent horizontal edge portions provided with cooperating horizontal ruled portions, and cooperating adjustable connector mechanisms on the pairs adapted to planarly connect the pairs in selected horizontally dimensioned tread postures.
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