Why is nesting yield fixed rather than an input?

Real cutting plans for damping patches land between about 80% and 90%, and the answer moves little inside that band. Fixing it and saying so keeps the estimate honest. Supplier die-cut parts already carry the nesting loss in their price.

Does more coverage always mean more damping?

No. Damping dissipates bending strain, which concentrates around the anti-nodes of the problem mode. A well-placed 40% treatment can beat an evenly spread 70% one, and past about 70% you are mostly buying mass.

Constrained-layer or free-layer damping product?

Free-layer is a plain viscoelastic sheet, simpler and cheaper. Constrained-layer adds a stiff foil skin so the core works in shear and dissipates far more energy for the same thickness. This page sizes either, so enter the total weight as supplied.

Why does sheet size change the answer so much?

Sheets are bought whole. A job needing 26.5 sheets pays for 27, and a job needing 3.2 pays over 25% extra in rounding. A smaller sheet size is often the fix.

Acoustic, Noise, Vibration & NVH Products calculator

Constrained-Layer Damping Material Calculator

Find how much damping sheet a specified coverage consumes, how many sheets to order and what it weighs. You need the panel area, coverage, sheet size and sheet weight.

What this calculator does

Size a damping treatment: sheet to buy once nesting waste is allowed for, sheets to order, and the mass it adds.

Formula used

Panel area covered = panel area × coverage ÷ 100
Damping sheet required = panel area covered ÷ 0.85 nesting yield
Sheets to order = ⌈damping sheet required ÷ sheet size⌉
Mass added = panel area covered × sheet weight per ft²
Offcut and part-sheet waste = sheets ordered × sheet size − panel area covered

Inputs explained

Panel Area to Damp: Radiating surface being treated, not total sheet metal in the assembly.
Damping Coverage: Percentage of the panel the treatment covers, from the acoustic specification.
Damping Sheet Size: Area of one supplied sheet, such as 12 ft².
Damping Sheet Weight: Weight per square foot as supplied, including constraining layer and adhesive.

How to use the result

Best suited to quoting damping out of an acoustic specification, choosing a sheet size that limits part-sheet waste, checking added weight against a panel mass budget.
Sizes material and weight only; it does not predict damping, which depends on core, skin stiffness, temperature and frequency. Says nothing about where patches should go, which often matters more than how many. The nesting yield is a planning figure, not a real cutting plan.

Common questions

Why is nesting yield fixed rather than an input? Real cutting plans for damping patches land between about 80% and 90%, and the answer moves little inside that band. Fixing it and saying so keeps the estimate honest. Supplier die-cut parts already carry the nesting loss in their price.
Does more coverage always mean more damping? No. Damping dissipates bending strain, which concentrates around the anti-nodes of the problem mode. A well-placed 40% treatment can beat an evenly spread 70% one, and past about 70% you are mostly buying mass.
Constrained-layer or free-layer damping product? Free-layer is a plain viscoelastic sheet, simpler and cheaper. Constrained-layer adds a stiff foil skin so the core works in shear and dissipates far more energy for the same thickness. This page sizes either, so enter the total weight as supplied.
Why does sheet size change the answer so much? Sheets are bought whole. A job needing 26.5 sheets pays for 27, and a job needing 3.2 pays over 25% extra in rounding. A smaller sheet size is often the fix.

Last reviewed 2026-10-01.