| 摘要 |
A construction layout marking device includes a reel housing that uses a ree l case to rotatably support a reel hub. A pair of spaced, parallel measuring tapes are secured, at inner ends, to the reel hub and can be coiled inside the reel ca se by rotation of the reel hub. A plurality of marking templates are attached to the spaced measuring tapes, at specified intervals. These marking templates can impart a line pattern to a surface above which they are placed by deployment out of the reel case. The line patterns are usable to position construction elements such as wall studs. Th e measuring tapes and their attached marking templates can be wound back into the reel case of the reel housing after use.
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