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Rate analysis: 25 mm premix carpeting

Short answer

Per m² of 25 mm premix carpet: loose chips 0.0312 m³, premix bitumen 1.75 kg, tack coat 0.25 kg, seal coat binder 0.73 kg and chips 0.009 m³. Adding heating, plant, labour, 15% overhead and 10% profit gives rate NPR 865.32 per m².

Prepare rate analysis of 25 mm thick premix carpeting per m².

Premix carpet is a 20–25 mm layer of pre-coated stone chips mixed with bitumen, laid hot and rolled, followed by a seal coat. Illustrative rates: stone chips NPR 4,500/m³, bitumen NPR 95/kg, labour NPR 1,500 and NPR 1,100 per day, overhead 15%, profit 10%.

Quantities per m² (IRC-type values, assumed)

  • Loose chips for premix =0.025×1.25=0.0312= 0.025 \times 1.25 = 0.0312 m³ (1.25 for compaction)
  • Bitumen in premix =1.75= 1.75 kg; tack coat =0.25= 0.25 kg; seal coat binder =0.73= 0.73 kg and seal chips =0.009= 0.009 m³
  • Labour and roller as shown

Analysis

ItemQtyUnitRate (NPR)Amount (NPR)
Stone chips (13.2 mm and 11.2 mm), loose0.0312m³4,500.00140.40
Bitumen for premix (1.75 kg/m²)1.75kg95.00166.25
Tack coat bitumen (0.25 kg/m²)0.25kg95.0023.75
Seal coat bitumen (0.73 kg/m²)0.73kg95.0069.35
Seal coat chips (0.009 m³/m²)0.0090m³4,500.0040.50
Heating bitumen, mixing, plant and roller (lump)1LS45.0045.00
Skilled labour0.05day1,500.0075.00
Unskilled labour0.12day1,100.00132.00
Direct cost692.25
Contractor's overhead @ 15%103.84
Contractor's profit @ 10%69.23
Total (rate per m²)865.32

Rate = NPR 865.32 per m².

✓ Answer checked by Claude Opus 5.5 (high effort)

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