Survey Lath, 5/16" x 1-1/2" x 48" – Bundle of 50 Create highly visible field markers for surveying, construction layout and site identification with this full-length 48-inch Douglas Fir survey lath. The smooth-sawn, plain wood surface offers plenty of space for detailed field information, paint or flagging. Key Features 5/16" x 1-1/2" x 48" smooth-sawn wood survey lath. Generous marking surface accommodates station numbers, elevations and other field information. Full 48-inch length provides excellent visibility on construction and survey sites. Made from quality Douglas Fir sourced from the Pacific Northwest and manufactured in Central California .