What does the consumable cost per square foot cover?

Bag film, breather, bleeder, release film and sealant tape for one bagging cycle. Add vacuum fittings, hose and gauges elsewhere if your shop stocks them as reusable tooling.

When does cost per square foot matter most?

On small bags. The fixed vacuum test and fittings spread over few square feet, so a repair bag can cost more per square foot than a large production bag.

Are reusable vacuum bags cheaper?

They can be, if the bag survives enough cycles to beat disposable film on the same area. Count cleaning labor, storage and leak checks, not only the film price.

Why is cost per square foot blank at zero area?

Cost per square foot needs an area to divide by. With no area the total still shows the fixed vacuum test, so enter the bag area to get the rate.

Composites, Fiberglass & Advanced Materials calculator

Vacuum Bagging Cost Calculator

Total vacuum bagging cost from the bag area, the consumable rate per square foot and the share of scope applied. A fixed vacuum test sits on top, so cost per square foot rises as the bag shrinks.

What this calculator does

Vacuum bagging spend from bag area, consumable rate and applied scope, with the fixed vacuum test spread per square foot.

Formula used

Variable bagging cost = bagging area × consumable cost per square foot × scope applied ÷ 100
Total bagging cost = variable bagging cost + fixed vacuum test cost
Bagging cost per square foot = total bagging cost ÷ bagging area

Inputs explained

Bagging Area: Bag film area covering the part and its flanges.
Consumable Cost: Bag film, breather, bleeder, release film and sealant tape per square foot.
Scope Applied: Share of the bag area this job or cost center carries.
Fixed Vacuum Test Cost: Vacuum test, fittings and connectors for the bag, not per square foot.

How to use the result

Best suited to costing a bagging kit, comparing disposable and reusable bags, pricing a small repair bag.
Leaks, re-bags and failed vacuum tests add consumables beyond one set per cycle. Cost per square foot is blank when area is zero, because no population exists.

Current U.S. benchmarks

The producer price index for plastic resins and materials stands at 280.569 (BLS, Aug 2026), up 6.6% from a year earlier. Quotes priced off last quarter's material cost miss this move.
Steel mill PPI stands at 381.162 (BLS, Aug 2026), up 23.4% from a year earlier. New factory orders are up 8.5% year over year (Census).

Common questions

What does the consumable cost per square foot cover? Bag film, breather, bleeder, release film and sealant tape for one bagging cycle. Add vacuum fittings, hose and gauges elsewhere if your shop stocks them as reusable tooling.
When does cost per square foot matter most? On small bags. The fixed vacuum test and fittings spread over few square feet, so a repair bag can cost more per square foot than a large production bag.
Are reusable vacuum bags cheaper? They can be, if the bag survives enough cycles to beat disposable film on the same area. Count cleaning labor, storage and leak checks, not only the film price.
Why is cost per square foot blank at zero area? Cost per square foot needs an area to divide by. With no area the total still shows the fixed vacuum test, so enter the bag area to get the rate.

Last reviewed 2026-10-01.