Perforated sheet metal pattern designer
Plan hole size, pitch, margins, skip bands, and open area with a live pattern preview in inches or millimetres. Pick material, thickness, and quantity for an instant budget estimate — FortiFab engineering confirms pricing, prepares the DXF in-house, and reviews manufacturability.
Live pattern preview
Updates as you edit. Scroll to zoom, drag to pan.
Estimated price
$125.60
Small-batch rate (1–10 pcs) — unit price drops at 11+
Mild steel (CRS) · 16 ga (0.0598") · Instant estimate — FortiFab confirms final pricing.
- Quantities of 10 or fewer carry the shop small-batch rate; unit price drops at 11+.
Flat-panel estimate only — forming, framing, hardware, gasket, and protective film are priced on FortiFab review. FortiFab prepares the DXF in-house and confirms web spacing, edge distance, and manufacturability before production.
- Open area
- 18.3%
- Holes
- 7,625
- Holes / ft²
- 1,182.4
Design pattern
Work in inches or millimetres — switching units converts every dimension. Your design is saved automatically in this browser.
Quick presets
Units
Material & quantity
1–10 pcs use the shop small-batch rate; unit price drops at 11+.
Drives the instant estimate only — pattern geometry is unchanged.
Sheet size
Width
Height
Border margins
Sides (X)
Top / bottom (Y)
Unperforated border kept clear around the pattern.
Hole shape
Pattern style
Usually half of pitch X.
Pitch
X
Y
Centre-to-centre spacing between holes.
Adjusts pitch X/Y toward the target while keeping their current ratio.
Skip columns
Every N columns
Gap width
Leaves a solid vertical band after every N columns. 0 disables.
Skip rows
Every N rows
Gap height
Leaves a solid horizontal band after every N rows. 0 disables.
Settings are saved automatically in your browser.
Pattern and pricing breakdown
Calculated from your current pattern. Final web spacing, edge distance, tooling limits, and export-safe feature counts still need FortiFab review.
Open area
18.28%(-11.72% vs. target)
- Hole count
- 7,625
- Rows × Columns
- 61 × 125
- Holes / in²
- 8.211
- Holes / ft²
- 1,182.41
- Total hole area
- 210.54 in²
- Solid material
- 941.46 in²
- Sheet area
- 1,152 in²
- Laser cut length
- 4,635.5 in
- Est. weight
- 20 lb
Price breakdown (each)
Mild steel (CRS) · 16 ga (0.0598")
- Material (incl. nesting)
- $12.50
- Laser cutting (7,626 pierces)
- $30.81
- Bends (flat panel)
- $0.00
- Welds
- $0.00
- Powder coat
- $0.00
- Shop subtotal
- $43.31
- Unit at 45% markup
- $62.80
- Small-batch rate (1–10 pcs)
- × 2
- Unit price
- $125.60
- Total (1 pc)
- $125.60
Instant estimate — FortiFab confirms final pricing. Hardware, forming, framing, gasket, and protective film are priced on review.
Design summary
Paste this summary into your quote request — DXF files are prepared manually by FortiFab to keep your geometry in-house.
- Sheet
- 48 × 24 in
- Margins
- 0.5 in sides · 0.5 in top/bottom
- Hole
- Round holes · 0.1875 in wide
- Pattern
- Staggered rows · 0.1875 in offset
- Pitch
- 0.375 × 0.375 in
- Skip bands
- None
- Open area
- 18.28% (target 30%)
- Holes
- 7,625 (61 rows × 125 columns)
- Material
- Mild steel (CRS) · 16 ga (0.0598") · No powder coat
- Estimate
- $125.60 each · $125.60 total for 1 pc (small-batch rate — unit price drops at 11+)
- Review notes
- None from the current pattern.
Perforation pattern guide
Design perforated sheet-metal patterns with open-area targets
Use the perforation designer to estimate hole count, rows, columns, pitch, margins, and open area before requesting a shop-reviewed pattern. It is best for early pattern intent; final DXF and manufacturability depend on material, web spacing, edge distance, tooling, and export limits.
Common searches
- perforation pattern designer
- open area calculator
- perforated sheet metal
- hole pattern calculator
Best buyer use cases
- Ventilation panels, guards, screens, and architectural perforation
- Open-area planning before DXF creation
- Pattern notes for custom panels and enclosure covers
Ready to turn this into a reviewed fabrication quote?
Send drawings, sketches, material, thickness, finish, quantity, and any fit-up requirements so FortiFab can review manufacturability.
Perforated sheet-metal pattern FAQs
Planning notes for open area, hole spacing, margins, DXF preparation, and FortiFab manufacturability review.
Instant estimate — FortiFab confirms final pricing
$125.60 · 18.3% open