01 — Rg · Rd · Rv

Round Holes

Round holes in three layouts: straight (Rg), 45° (Rd) and 60° (Rv). The most popular category — filtration, guards, facades, acoustics. Standard patterns (in stock, up to 1600 mm) marked in orange.

6Patterns

0.8-65mm diameter

Straight layout

Designation: Rg a-t (a=hole, t=pitch)
Open area P% = 0.785 × a²/t² × 100

Holes arranged in perpendicular rows and columns. 77 standard patterns.

Nr	Typ Rg a-t	P%
9	Rg 3-6	19.6
12	Rg 4-8	19.6
16	Rg 5-8	30.7
17	Rg 5-10	19.6
24	Rg 6-10	28.3
33	Rg 8-15	22.3

45° layout

Designation: Rd a-t · per DIN24041: Rd a-p
Open area P% = 1.57 × a²/t² × 100

Holes arranged diagonally at 45°. 61 standard patterns. Column „p” = diagonal pitch.

Nr	Typ Rd a-t	p	P%
9	Rd 3-5	5	28.3
16	Rd 5-8	8	30.7
24	Rd 6-10	10	28.3
33	Rd 8-12	12	34.9
52	Rd 10-15	15	34.9

60° layout (honeycomb)

Designation: Rv a-t
Open area P% = 0.91 × a²/t² × 100

The densest layout — holes in a 60° triangular pattern, the largest possible open area. 164 patterns.

Nr	Typ Rv a-t	P%
28	Rv 3-5	32.8
45	Rv 4-6	40.4
55	Rv 5-8	35.5

Manufacturer technical data — full range of 302 round patterns. Orange = standard perforations (dies for wide-format perforating, sheets/coils up to 1600 mm). Other diameters and pitches on request.

02 — Sv

Hexagonal Holes

Hexagonal holes in a 60° (honeycomb) layout. The largest possible open area, ideal for filtration, ventilated facades and acoustic screens.

6Patterns

60° layout

Designation: Sv a-t (a=spacing, t=pitch)
Open area P% = a²/t² × 100

Regular hexagon in a dense honeycomb layout.

Nr	Typ Sv a-t	P%
2	Sv 8-10.5	58.1
4	Sv 10-15	44.4
7	Sv 12-16	56.3
9	Sv 16-21	58.1
12	Sv 20-26	59.2
15	Sv 25-35	51.0

Manufacturer data. Orange = standard patterns.

03 — Qg · Qv · Qd

Square Holes

Square holes in three layouts: straight (Qg), staggered (Qv) and 45° (Qd). Clean, technical look — furniture, panels, facades.

8Patterns

Straight layout

Designation: Qg a-t
Open area P% = a²/t² × 100

Squares in perpendicular rows. 87 patterns.

Nr	Typ Qg a-t	P%
2	Qg 3-5	36.0
8	Qg 5-8	39.1
9	Qg 5-10	25.0
19	Qg 8-12	44.4
31	Qg 10-15	44.4
33	Qg 10-20	25.0
44	Qg 12-18	44.4
59	Qg 20-30	44.4

Staggered layout

Designation: Qv a-t
Open area P% = a²/t² × 100

Squares staggered in a brick-like pattern. 16 patterns.

Nr	Typ Qv a-t	P%

45° layout

Designation: Qd a-t
Open area P% = 2 × a²/t² × 100

Squares rotated 45°. 42 patterns.

Nr	Typ Qd a-t	P%

Manufacturer data. Orange = standard patterns. For holes 54-120 mm, various spacings and layouts are possible.

04 — Pg · Pv

Rectangular Holes

Rectangular holes (a×b) in straight (Pg) and staggered (Pv) layout. Filters, ventilation grilles, directional elements.

5Patterns

Straight layout

Designation: Pg axb – txt1
Open area P% = (a×b)/(t×t1) × 100

First dimension = side parallel to the sheet’s longer edge. 14 patterns.

Nr	Typ Pg axb-txt1	P%
1	Pg 4.2×16 – 7×20	48.0
4	Pg 15×25 – 18×28	74.4
6	Pg 18×4 – 25×8	36.0
10	Pg 50×15 – 60×18	69.4
11	Pg 60×11 – 92×28	25.6

Staggered layout

Designation: Pv axb – txt1
Open area P% = 2 × (a×b)/(t×t1) × 100

Rectangles staggered in a brick-like pattern. 3 patterns.

Nr	Typ Pv axb-txt1	P%

Manufacturer data.

05 — Lg · Lv · Ld

Slotted Holes

Slotted holes with rounded ends in straight (Lg), staggered (Lv) and 45° (Ld) layouts. From narrow slots to wide industrial slots.

7Patterns

Straight layout (a<b)

Designation: Lg axb – txt1
P% = (axb – 0.215×a²)/(t×t1) × 100

Horizontal slots, first dimension = side parallel to the sheet’s longer edge. 26 patterns.

Nr	Typ Lg axb-txt1	P%
7	Lg 5×25 – 16×34	22.0
8	Lg 6×35 – 24×42	20.1
10	Lg 8×40 – 14×92	23.8
12	Lg 10×40 – 16×92	25.7
14	Lg 12×40 – 18×92	27.1
17	Lg 16×32 – 24×80	23.8
20	Lg 20×40 – 28×50	51.0

Straight layout (a>b)

Designation: Lg axb – txt1
P% = (axb – 0.215×b²)/(t×t1) × 100

Vertical slots. 34 patterns.

Nr	Typ Lg axb-txt1	P%

Staggered layout (a<b)

Designation: Lv axb – txt1
P% = 2 × (axb – 0.215×a²)/(t×t1) × 100

Horizontal slots staggered brick-like. 27 patterns.

Nr	Typ Lv axb-txt1	P%

Staggered layout (a>b)

Designation: Lv axb – txt1
P% = 2 × (axb – 0.215×b²)/(t×t1) × 100

Vertical slots staggered brick-like. 76 patterns.

Nr	Typ Lv axb-txt1	P%

45° layout

Designation: Ld axb – txt1
P% = (axb – 0.215×a²)/(t×t1) × 100

Diagonal slots at 45°. 9 patterns.

Nr	Typ Ld axb-txt1	P%

Manufacturer data.

06 — Mg · Md · Mdo

Dimpled Holes

Dome-pressed holes (embossing height 2-3 mm) in straight (Mg), 45° (Md) and 45° with drainage hole (Mdo) layouts. Platforms, ramps, anti-slip surfaces.

6Patterns

Straight layout

Designation: Mg a-t · embossing height 2-3 mm
Open area P% = 0.785 × a²/t² × 100

Dome-pressed dimples in a straight layout. 11 patterns.

Nr	Typ Mg a-t
1	Mg 6 – 20
4	Mg 8 – 30
5	Mg 10 – 30
6	Mg 10 – 40
8	Mg 12 – 50
11	Mg 25 – 80

45° layout

Designation: Md a-t · embossing height 2-3 mm
Open area P% = 1.57 × a²/t² × 100

Dimples in a 45° layout. 10 patterns.

Nr	Typ Md a-t

45° layout with drainage hole

Designation: Mdo a-b-t · embossing height 2-3 mm

Dimples with an additional drainage hole. 1 pattern.

Nr	Typ Mdo a-b-t

Embossing height 2-3 mm. Manufacturer data.

07 — Special patterns

Other Patterns

Special and embossed patterns: louvre, clover, herringbone, scale, embossed, bridge-slot, mixed, and keyhole/teardrop. Most are made to order.

16+Patterns

Embossed Slotted

Mlg / Mld · straight and staggered layout

Car trailer/carrier deck elements. Hole spacing t~60 mm, t1~105 mm. Type Mlg 21×48, Mld 21×48.

Anti-Slip Teeth

Embossed · one-sided

Anti-slip platforms. Suggested platform width 250 mm. Embossing height 6 / 13.5 mm.

Louvre Holes

Dd / Dg · staggered and straight layout

Directional airflow. Dd 15×50 – 60×50, Dg 50×15 – 60×25. Minimum t, t1 values.

Clover

Oz a-t

Decorative pattern. Oz 8-12, 8-20, 11-16, 11-18, 12-24. In pattern Oz 17-24 the corners are cut.

Herringbone

Ozj axb – txt1

Decorative diagonal pattern. Ozj 2.2×23 – 6.3×36, Ozj 2.5×23 – 7×36.

Scale Holes

Embossed · directional

Three-dimensional scales with a directional character. Decorative and functional effect.

Embossed Sheets

Round Ø10 mm / square 15×15 mm

Three-dimensional embossed surfaces — aesthetic effect and increased stiffness.

Bridge-Slot

a-b-txt1 · embossed

Embossed bridges. a=30/52, b=5/6, t=40/72, t1=24/34, depth g=2-6 mm.

Mixed Patterns

Hole combinations

Combining different shapes and layouts on one sheet. Decorative effects.

Keyhole / Teardrop Holes

Special shapes

Key- and teardrop-shaped holes. Assembly and decorative applications.

Special Holes

Custom design

Any pattern can be made to the customer’s design — shape, pitch, material.

Special patterns — details and feasibility to be agreed. Ask about a custom design.

Didn’t find your pattern?

We’ll make perforations to your design — any shape, pitch and material. Free quote within 24h.

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