Enclosure volume and cut list calculator
Enter width, height, depth and panel thickness to get internal volume and cut list. The example uses a simple butt-joint build (top/bottom outside, sides between, front and back set in).
More in the full version: own drivers, 9 enclosure types, optimizers, cut lists, PDF report.
Try it free in the app
Try it free in the app
From volume to dimensions
The internal volume is (W − 2t) × (H − 2t) × (D − 2t). Braces, drivers, ports and crossover displace additional volume – the app subtracts that when designing.
Golden ratio?
A ratio like 1 : 1.6 : 0.9 (golden ratio or similar) spreads internal resonances. Avoid equal edge lengths.
Frequently asked questions
How do I calculate internal volume?
Subtract twice the panel thickness from each outer dimension and multiply: V = (W−2t)·(H−2t)·(D−2t).
Which panel thickness?
18–25 mm MDF or plywood are common; larger boxes or subwoofers benefit from bracing.
Does the calculator account for displacement?
No. The app accounts for drivers, port, braces and crossover in the design.