Trench Safety

CAT Series
4 inch Double Sidewalls

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Model H×L Pipe Clearance Shield Cap
(PSF)*
Depth Rating B
Soils (45PSF)*
Depth Rating C
Soils (60PSF)*
Weight
(LBS)
CAT4-410 4 x 10 21″ 3000 67 50 3270
CAT4-412 4 x 12 21″ 3000 67 50 3670
CAT4-416 4 x 16 21″ 1840 41 30 4530
CAT4-420 4 x 20 21″ 1130 25 19 5365
CAT4-424 4 x 24 21″ 775 17 13 6240
CAT4-610 6 x 10 41″ 3000 67 50 4110
CAT4-612 6 x 12 41″ 3000 67 50 4840
CAT4-616 6 x 16 41″ 1533 34 25 5900
CAT4-620 6 x 20 41″ 1111 25 19 7100
CAT4-624 6 x 24 41″ 791 18 13 10445
CAT4-810 8 x 10 55″ 2392 53 40 5020
CAT4-812 8 x 12 55″ 2011 45 34 5790
CAT4-816 8 x 16 55″ 1533 34 25 7255
CAT4-820 8 x 20 55″ 1113 25 19 7100
CAT4-824 8 x 24 55″ 793 18 13 10445
CAT4-1010 10 x 10 70″ 1722 38 29 6320
CAT4-1012 10 x 12 70″ 1457 32 24 7240
CAT4-1016 10 x 16 70″ 1124 25 19 8975
CAT4-1020 10 x 20 70″ 924 21 16 10700
CAT4-1024 10 x 24 70″ 791 18 13 12585
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C-Class Spreaders (8″ Sch. 80 Pipe) For Use On All Standard CAT Models

Model Length Weight (LBS)
C4-24 24″ 470
C4-30 30″ 560
C4-36 36″ 650
C4-42 42″ 740
C4-48 48″ 820
C4-60 60″ 1010
C4-72 72″ 1170
C4-84 84″ 1350
C4-96 96″ 1500
C4-108 108″ 1692
C4-120 120″ 1860
C4-132 132″ 2040
C4-144 144″ 2210

*PSF (pounds per square foot) ratings indicated maximum shield capacities, Depths are based on B.C. soil types as described in OSHA’s 29 CFR Part 1926 Subpart P, October 31, 1989 with Type B not exceeding 45 PSF per foot of depth and Type C not exceeding 60 PSF per foot of depth. Determine actual soil pressures and consult Manufacturers Tabulated Data prior to each use.


LES Series
4 inch Double Sidewalls

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Model H×L Pipe Clearance Sheild Cap (PSF)* Depth Rating
B Soils (45 PSF)*
Depth Rating
C Soils (60 PSF)*
Weight (LBS) 4″Col. Weight (LBS) 7″Col.
LES4-48 4 x 8 24″ 2400 53 40 1880 2180
LES4-410 4 x 10 24″ 2100 47 35 2270 2570
LES4-412 4 x 12 24″ 1740 38 29 2570 2870
LES4-414 4 x 14 24″ 1500 33 25 3080 3380
LES4-416 4 x 16 24″ 1140 25 19 3280 3580
LES4-420 4 x 20 24″ 780 17 13 3930 4230
LES4-424 4 x 24 24″ 540 12 9 ** 5200
LES4-68 6 x 8 36″ 2400 53 40 2570 2870
LES4-610 6 x 10 36″ 2100 47 35 3030 3330
LES4-612 6 x 12 36″ 1740 38 29 3470
LES4-614 6 x 14 36″ 1500 33 25 3930 4230
LES4-616 6 x 16 36″ 1140 25 19 4380 4680
LES4-620 6 x 20 36″ 780 17 13 5330 5630
LES4-624 6 x 24 36″ 540 12 9 ** 6610
LES4-88 8 x 8 48″ 2400 53 40 3180 3480
LES4-810 8 x 10 48″ 2100 47 35 3730 4030
LES4-812 8 x 12 48″ 2100 38 29 4330 4630
LES4-814 8 x 14 48″ 1500 33 25 4880 5180
LES4-816 8 x 16 48″ 1140 25 19 5480 5780
LES4-820 8 x 20 48″ 780 17 13 6830 7130
LES4-824 8 x 24 48″ 540 12 9 ** 8460
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*PSF (pounds per square foot) ratings indicated maximum shield capacities, Depths are based on B.C. soil types as described in OSHA’s 29 CFR Part 1926 Subpart P, October 31, 1989 with Type B not exceeding 45 PSF per foot of depth and Type C not exceeding 60 PSF per foot of depth. Determine actual soil pressures and consult Manufacturers Tabulated Data prior to each use.

A-Class Spreaders (5″ Sch. 80 Pipe) for Use on LES4 Series Shields With 4″ Collars

Model Length Weight
A4-24 24″ 220
A4-30 30″ 270
A4-36 36″ 310
A4-42 42″ 350
A4-48 48″ 390
A4-60 60″ 470
A4-72 72″ 560
A4-84 84″ 640
A4-96 96″ 730
A4-108 108″ 810
A4-120 120″ 890
A4-144 144″ 1100

C-Class Spreaders (8″ Sch. 80 Pipe) for Use on LES4 Series Shields With 7″ Collars

C4-9696″1500

Model Length Weight
C4-24 24″ 470
C4-30 30″ 560
C4-36 36″ 650
C4-42 42″ 740
C4-48 48″ 820
C4-60 60″ 1010
C4-72 72″ 1170
C4-84 84″ 1350
C4-108 108″ 1692
C4-120 120″ 1860
C4-132 132″ 2040
C4-144 144″ 2210

**Four-inch collars are not available on shields longer than 20 feet.


Manhole Series
Manhole Shields

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All of our Manhole Shields are designed with maximum protection in mind. Both of our models are stackable, allowing for added depth and protection. Both models come standard with connected spreaders.

Optional

24″ x 24″ and 36″ x 36″ Cut-Outs with replaceable doors.

Model HxLxW(I.D.) Pipe Clearance Sheild Cap (PSF)* Depth Rating
B Soils (45 PSF)*
Depth Rating
C Soils (60 PSF)*
Weight (LBS)
MAN-4 48 S 4 x 8 x 8 24″ 1700 40 30 2780
MAN-4 49 S 4 x 9 x 8 24″ 1560 35 26 2950
MAN-4 410 S 4 x 10 x 10 24″ 1380 31 23 3280
MAN-4 88 S 8 x 8 x 8 48″ 1140 25 19 4280
MAN-4 89 S 8 x 9 x 8 48″ 960 21 16 4650
MAN-4 810 S 8 x 10 x 10 48″ 780 17 13 4980
MAN-4 48 4 x 8 x 8 24″ 3000 67 50 3180
MAN-4 49 4 x 9 x 8 24″ 3000 67 50 3450
MAN-4 410 4 x 10 x 10 24″ 3000 67 50 3680
MAN-4 411 4 x 11 x 10 24″ 2250 56 46 4000
MAN-4 412 4 x 12 x 12 24″ 2100 47 35 4280
MAN-4 88 8 x 8 x 8 48″ 2400 53 40 5070
MAN-4 89 8 x 9 x 8 48″ 2200 49 37 5540
MAN-4 810 8 x 10 x 10 48″ 2100 47 35 5970
MAN-4 811 8 x 11 x 10 48″ 1920 43 32 6420
MAN-4 812 8 x 12 x 12 48″ 1690 32 28 6830
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Note: Length is O.D. I.D is one foot less

*PSF (pounds per square foot) ratings indicated maximum shield capacities, Depths are based on B.C. soil types as described in OSHA’s 29 CFR Part 1926 Subpart P, October 31, 1989 with Type B not exceeding 45 PSF per foot of depth and Type C not exceeding 60 PSF per foot of depth. Determine actual soil pressures and consult Manufacturers Tabulated Data prior to each use.


Aluminium Series
Aluminim Trench Sheild

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Aluminum Trench Shields are designed to be used with light weight equipment. Each As model is constructed of 6061-T6 aluminim panels, that are foam filled. These foam filled panels prevent dirt and water build up, reducing overall weight.

Optional

  • Cut outs with replaceable doors
  • Knife edge
  • End panels
Model HxL Pipe Clearance Sheild Cap (PSF)* Depth Rating
B Soils (45 PSF)*
Depth Rating
C Soils (60 PSF)*
Weight (LBS)
AS-46 4 x 6 12″ 1960 44 21 440
AS-48 4 x 8 12″ 1470 33 16 550
AS-410 4 x 10 12″ 1130 25 13 620
AS-412 4 x 12 12″ 764 17 11 720
AS-416 4 x 16 12″ 421 10 7 900
AS-66 6 x 6 30″ 1264 44 21 620
AS-68 6 x 8 30″ 960 33 16 750
AS-610 6 x 10 30″ 777 25 13 890
AS-612 6 x 12 30″ 655 17 11 1030
AS-616 6 x 16 30″ 427 10 7 1300
AS-86 8 x 6 30″ 1264 44 21 800
AS-88 8 x 8 30″ 960 33 16 980
AS-810 8 x 10 30″ 777 25 13 1160
AS-812 8 x 12 30″ 655 17 11 1340
AS-816 8 x 16 30″ 427 10 7 1740

AS Spreaders (Adjustable Tube Spreader) For Use on Aluminum Trench Shields

Model
(set of 4)
Length
(Sheild I.D)
Weight
(LBS)
AS4-1826 18″ to 26″ 108
AS4-2334 23″ to 34″ 128
AS4-2844 28″ to 44″ 153
AS4-3454 34″ to 54″ 183
AS4-4266 42″ to 66″ 223
AS4-5288 52″ to 88″ 273
AS4-6096 60″ to 96″ 284
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*PSF (pounds per square foot) ratings indicated maximum shield capacities, Depths are based on B.C. soil types as described in OSHA’s 29 CFR Part 1926 Subpart P, October 31, 1989 with Type B not exceeding 45 PSF per foot of depth and Type C not exceeding 60 PSF per foot of depth. Determine actual soil pressures and consult Manufacturers Tabulated Data prior to each use.


High Clearance Arch Series
High Clearance Arch

Our High Clearance Arch System is designed for use with boring pits, large diameter pipe installation and any other application where a vertical clearance of 10′ is needed.

  • Full range of bolt-on extensions to allow up to 22′ inside width.
  • Allows 8′ of vertical clearance when used with 8′ high shields.
  • Professional Engineer depth certification.
  • Custom designs and sizes are available to meet any job requirements.
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Model Description Weight
(LBS)
HC-ARCH Arch Legs 2800
EX-12 1′ Extension 660
EX-24 2′ Extension 820
EX-36 3′ Extension 980
EX-48 4′ Extension 1180
EX-60 5′ Extension 1390
EX-72 6′ Extension 1500
EX-84 7′ Extension 1660
EX-96 8′ Extension 1820
EX-108 9′ Extension 1960
EX-120 10′ Extension 2080
EX-144 12′ Extension 2390
EX-156 13′ Extension 2570

*Weights do not include spreader pipes at front of shield

For depth ratings, follow all notes and limitations on the certification sheet supplied with arch and trench shield being used.


Stone Boxes

SB Models are designed to be used with lighter machinery. They are constructed of 1/4″ thick side plate with 1/2″ bottoms.

S B H Models are intended for use with heavier equipment. They are constructed of 3/8″ thick side plate with 1/2″ bottoms.

S B W Models are designed for larger buckets. These Stone Boxes are wider for that reason. They are constructed of 3/8″ side plates and 1/2″ bottoms.

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Model HxLxE (!.D.) Capacity (Cu. Yards) Weight (LBS)
SB-3 36″ x 103″ x 48″ 3 3100
SB-5 36″ x 116″ x 63″ 5 4100
SB-7 48″ x 143″ x 63″ 7 4800
SB-9 48″ x 164″ x 63″ 9 5300
SB-12 48″ x 183″ x 75″ 12 6400
SBH-5 36″ x 116″ x 63″ 5 4850
SBH-7 48″ x 143″ x 63″ 7 6130
SBH-9 48″ x 164″ x 63″ 9 6650
SBH-12 48″ x 183″ x 75″ 12 7700
SBH-15 48″ x 222″ x 75″ 15 8600
SBH-18 60″ x 219″ x 81″ 18 9500
SBH-20 60″ x 238″ x 81″ 20 10300
SBW-9 48″ x 146″ x 75″ 9 6725
SBW-12 48″ x 164″ x 87″ 12 7550
SBW-15 48″ x 195″ x 87″ 15 8375
SBW-18 60″ x 201″ x 87″ 18 9475
SBW-20 60″ x 220″ x 87″ 20 10140
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