Managing Materials on the Jobsite
Quantities, delivery, and inspection
Materials management begins with the takeoff. Order measured area plus waste by product and pattern: carpet tile commonly 5 to 10 percent, LVT 5 to 8 percent, sheet vinyl 10 to 15 percent, and tile 10 to 15 percent, plus attic stock if required. Order full cartons and verify coverage per carton. Check dye lot, caliber, and lot numbers on delivery. Inspect for damage before signing the delivery receipt; note shortages and reject crushed or wet material. Schedule deliveries just in time, but protect against lead-time risk. Confirm site storage is secure, dry, and within temperature limits.
Storage and acclimation
Store carpet tile cartons flat, carpet rolls upright, and resilient sheet goods upright on end to prevent deformation. Keep adhesives from freezing and rotate stock. Acclimate flooring and adhesive at the manufacturer's temperature and time, commonly 48 to 72 hours. Do not open cartons early unless the manufacturer requires it. Secure high-value material and limit access. Track remaining inventory so punch list repairs do not consume attic stock.
Worked example
A 5,000 sf LVT job requires 5 percent waste. Order quantity = 5,000 × 1.05 = 5,250 sf. Cartons cover 24.5 sf: 5,250 ÷ 24.5 = 214.3, so order 215 cartons, or 5,267.5 sf. Add 2 percent attic stock if specified: 5,000 × 0.02 = 100 sf, about 5 more cartons. Check that all cartons carry the same lot. Store flat at 70 degrees Fahrenheit for 48 hours before installation. If delivery is three days late, update the schedule and notify the general contractor; do not install cold material to save time.
Traps that cost marks
- Ordering net area and running short during punch list.
- Mixing dye lots or caliber without checking labels.
- Storing adhesive in a freezing trailer.
- Stacking heavy material on cartons or bending sheet goods.
- Signing for damaged delivery without notation.
- Opening and acclimating material in an uncontrolled space.