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    Construction & Electrical

    Cable tray material quantity takeoff

    Estimate straight cable tray pieces for separate routes without treating elbows or tees as straight lengths. Enter the number of repeated runs, piece length, spacing and allowance, then supply the bend and branch fitting counts from your drawing. Results separate base pieces, extra pieces, straight splice sets and support positions.

    MAKE IT SIMPLE

    Example: 8+5+2+4 with 2 routes = two separate 19 m routes. Alternatively, (8+5+2+4)*2 with route count 1 gives the same result. You can add up to 100 rows.

    Each independent route counts full straight pieces, joins and support points separately. The (6+3)*2 expression means two 9 m routes when the separate route count is 1. Shared supports, fitting lengths, splice hardware, load-span compliance and product standards require project review.

    Result

    Worked examples

    Two independent 6 m straight runs, 3 m pieces, 2 m spacing, 10% allowance, two elbows and one tee

    5 straight pieces including one extra, 2 straight joints, 8 support positions, 2 elbows and 1 tee

    Each run needs two straight pieces and four support positions. One extra piece is reserved for the specified allowance.

    Questions & answers

    Are splice plates and bolts counted?

    No. One splice set represents one straight joint. The number of plates, bolts and accessories depends on the manufacturer's connection kit.

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