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CAD generated iso view of box pad with an transformer sold by Concast, Inc. CAD generated iso view of box pad with an transformer sold by Concast, Inc.
Photo of a fibercrete offset opening box pad supporting an installed transformer. Photo of a fibercrete offset opening box pad supporting an installed transformer.
Photo of a a large fibercrete box pad with an transformer in the factory at Concast Inc. Photo of a a large fibercrete box pad with an transformer in the factory at Concast Inc.
Photo of a fibercrete box pads stacked in the Concast yard. Photo of a fibercrete box pads stacked in the Concast yard.
Photo close-up of a fibercrete split box pad supporting a transformer unit. Photo close-up of a fibercrete split box pad supporting a transformer unit.
Unistrut cast into a box pad surface with hold-down clamps inlcluded to secure electrical equipment to the box pad. Unistrut cast into a box pad surface with hold-down clamps inlcluded to secure electrical equipment to the box pad.

Link to Box Pad Photo Album Box Pad Photo Album

Single & Three Phase Transformer Box Pads

Concast's builds many box pads that can be used to support transformers.  Fibercrete®  is a precisely engineered GFRC composite; it provides a lightweight box pad with high strength and excellent durability. The smaller, single-phase box pads can be lifted by two people.  Three phase transformer box pads have internal reinforcing walls to fully bear the heavy oil tanks.  We also offer a small line of multiple opening box pads for gang transformer installations.

The part numbers in the list below are just our common sizes, and the openings can be customized. The split box option is another way to get the right box pad size for your project.  Other customization options include clamps, threaded inserts, unistrut, knockouts, and holes.  Click here to upload your application requirements, and the engineering team at Concast will give you a box pad recommendation ASAP. 

Adobe_pdf_logo Box Pad Specifications
 Adobe_pdf_logo Box Pad Installation Guidelines
Adobe_pdf_logo Box Pad Catalog
Transformer Pad
Part Number		 Box
Length		 Box
Width		 Box
Height		 Opening
Size
(L x W)		 Front
Offset
Distance		 Adobe_pdf_logo
PDF File
FC-36-52-18-2412(6) 52 in. 36 in. 18 in. 24 x 12 6 in. FC-36-52-18-2412(6).pdf
FC-37-40-20-2528 40 in. 37 in. 20 in. 28 x 25 6 in. FC-37-40-20-2528.pdf
FC-38-43-15-2020(5) 43 in. 38 in. 15 in. 20 x 20 5 in. FC-38-43-15-2020(5).pdf
FC-38-43-15-2215(6) 43 in. 38 in. 15 in. 15 x 22 6 in. FC-38-43-15-2215(6).pdf
FC-38-43-15-2623(6) 43 in. 38 in. 15 in. 23 x 26 6 in. FC-38-43-15-2623(6).pdf
FC-38-43-15-2631 43 in. 38 in. 15 in. 31 x 26 6 in. FC-38-43-15-2631.pdf
FC-38-43-32-2016(6) 43 in. 38 in. 32 in. 16 x 20 6 in. FC-38-43-32-2016(6).pdf
FC-38-43-32-2022(9) 43 in. 38 in. 32 in. 16 x 22 9 in. FC-38-43-32-2022(9).pdf
FC-38-43-32-2215(7) 43 in. 38 in. 32 in. 15 x 22 7 in. FC-38-43-32-2215(7).pdf
FC-38-43-32-2815(7) 43 in. 38 in. 32 in. 15 x 28 7 in. FC-38-43-32-2815(7).pdf
FC-38-43-32-2229C 43 in. 38 in. 32 in. 29 x 22 7 in. FC-38-43-32-2229C.pdff
FC-38-43-32-2631 43 in. 38 in. 32 in. 31 x 26 6 in. FC-38-43-32-2631.pdf
FC-40-43-15-2014(7) 43 in. 40 in. 15 in. 14 x 20 7 in. FC-40-43-15-2014(7).pdf
FC-40-43-15-2215(5) 43 in. 40 in. 15 in. 15 x 22 5 in. FC-40-43-15-2215(5).pdf
FC-40-43-15-2412(5) 43 in. 40 in. 15 in. 12 x 24 5 in. FC-40-43-15-2412(5).pdf
FC-40-43-15-2215(5) 43 in. 40 in. 15 in. 15 x 22 5 in. FC-40-43-15-2215(5).pdf
FC-40-43-15-2618(6) 43 in. 40 in. 15 in. 18 x 26 6 in. FC-40-43-15-2618(6).pdf
FC-40-43-18-2215(7) 43 in. 40 in. 18 in. 15 x 22 7 in. FC-40-43-18-2215(7).pdf
FC-40-43-18-2412(5) 43 in. 40 in. 18 in. 12 x 24 5 in. FC-40-43-18-2412(5).pdf
FC-40-43-18-2812(8) 43 in. 40 in. 18 in. 12 x 28 8 in. FC-40-43-18-2812(8).pdf
FC-40-44-24-1815(7) 44 in. 40 in. 24 in. 15 x 18 7 in. FC-40-44-24-1815(7).pdf
FC-40-44-24-2618(5) 44 in. 40 in. 24 in. 18 x 26 5 in. FC-40-44-24-2618(5).pdf
FC-40-54-36-1543(6) 40 in. 54 in. 36 in. 15 x 43 5.5 in. FC-40-54-36-1543(6).pdf
FC-42-42-18-2024(7) 42 in. 42 in. 18 in. 24 x 20 7 in. FC-42-42-18-2024(7).pdf
FC-42-42-18-2222C 42 in. 42 in. 18 in. 22 x 22 10 in. FC-42-42-18-2222C.pdf
FC-42-42-24-1124(6) 42 in. 42 in. 24 in. 11 x 24 6 in. FC-42-42-24-1124(6).pdf
FC-42-42-24-1224(6) 42 in. 42 in. 24 in. 12 x 24 6 in. FC-42-42-24-1224(6).pdf
FC-42-42-24-1528(7) 42 in. 42 in. 24 in. 15 x 28 7 in. FC-42-42-24-1528(7).pdf
FC-42-48-20-2626(4) 48 in. 42 in. 20 in. 26 x 26 4 in. FC-42-48-20-2626(4).pdf
FC-42-48-32-2626(4) 48 in. 42 in. 32 in. 26 x 26 4 in. FC-42-48-32-2626(4).pdf
FC-43-43-15-2015(6) 43 in. 43 in. 15 in. 15 x 20 6 in. FC-43-43-15-2015(6).pdf
FC-43-43-15-2215(5) 43 in. 43 in. 15 in. 15 x 22 5 in. FC-43-43-15-2215(5).pdf
FC-43-43-15-2415(7) 43 in. 43 in. 15 in. 15 x 24 7 in. FC-43-43-15-2415(7).pdf
FC-43-43-15-2817(6) 43 in. 43 in. 15 in. 17 x 28 6 in. FC-43-43-15-2817(6).pdf
FC-44-44-32-2525C 44 in. 44 in. 32 in. 25 x 25 9.5 in. FC-44-44-32-2525C.pdf
FC-44-48-15-2615(6) 48 in. 44 in. 15 in. 15 x 26 6 in. FC-44-48-15-2615(6).pdf
FC-44-48-15-2626(6) 48 in. 44 in. 15 in. 26 x 26 6 in. FC-44-48-15-2626(6).pdf
FC-44-48-15-3015(6) 48 in. 44 in. 15 in. 15 x 30 6 in. FC-44-48-15-3015(6).pdf
FC-45-45-20-2525C 45 in. 45 in. 20 in. 25 x 25 11 in. FC-45-45-20-2525C.pdf
FC-48-48-30-3030C 48 in. 48 in. 30 in. 30 x30 9 in. FC-48-48-30-3030C.pdf
FC-48-49-20-2525C 48 in. 49 in. 20 in. 25 X 25 12 in. FC-48-49-20-2525C.pdf
FC-48-52-20-2615(8) 52 in. 48 in. 20 in. 15 x 26 8 in. FC-48-52-20-2615(8).pdf
FC-48-52-20-3416(6) 52 in. 48 in. 20 in. 16 x 34 6 in. FC-48-52-20-3416(6).pdf
FC-50-52-18-2613(6) 52 in. 50 in. 18 in. 13 x 26 6 in. FC-50-52-18-2613(6).pdf
FC-50-52-18-3615(6) 52 in. 50 in. 18 in. 15 x 36 6 in. FC-50-52-18-3615(6).pdf
FC-50-69-20-1744(7) 50 in. 69 in. 20 in. 17 x 44 7 in. FC-50-69-20-1744(7).pdf
FC-50-69-20-1854(7) 50 in. 69 in. 20 in. 18 x 54 7 in. FC-50-69-20-1854(7).pdf
FC-54-74-20-1550(6) 54 in. 74 in. 20 in. 15 x 50 6 in. FC-54-74-20-1550(6).pdf
FC-54-74-20-1560(6) 54 in. 74 in. 20 in. 15 x 60 6 in. FC-54-74-20-1560(6).pdf
FC-63-105-36-1777(7) 63 in. 105 in. 36 in. 17 x 77 7 in. FC-63-105-36-1777(7).pdf
FC-63-105-36-2386(7) 63 in. 105 in. 36 in. 23 x 86 7 in. FC-63-105-36-2386(7).pdf
FC-65-65-20-1537(6) 65 in. 65 in. 20 in. 15 x 37 6 in. FC-65-65-20-1537(6).pdf
FC-65-65-20-1550(6) 65 in. 65 in. 20 in. 15 x 50 6 in. FC-65-65-20-1550(6).pdf
FC-65-65-20-1850(6) 65 in. 65 in. 20 in. 18 x 50 6 in. FC-65-65-20-1850(6).pdf
FC-65-74-20-1650(9) 65 in. 74 in. 20 in. 16 x 50 9 in. FC-65-74-20-1650(9).pdf
FC-65-74-20-2060(7) 65 in. 74 in. 20 in. 20 x 60 7 in. FC-65-74-20-2060(7).pdf
FC-65-74-36-1452(10) 65 in. 74 in. 36 in. 14 x 52 10 in. FC-65-74-36-1452(10).pdf
FC-65-74-36-2060(8) 65 in. 74 in. 36 in. 20 x 60 8 in. FC-65-74-36-2060(8).pdf
FC-65-86-20-1552(6) 65 in. 86 in. 20 in. 15 x 52 6 in. FC-65-86-20-1552(6).pdf
FC-65-86-20-2062(6) 65 in. 86 in. 20 in. 20 x 62 6 in. FC-65-86-20-2062(6).pdf
FC-65-86-20-2472(6) 65 in. 86 in. 20 in. 24 x 72 6 in. FC-65-86-20-2472(6).pdf
FC-65-86-36-1564(9) 65 in. 86 in. 36 in. 15 x 64 9 in. FC-65-86-36-1564(9).pdf
FC-65-86-36-2068(6) 65 in. 86 in. 36 in. 20 x 68 6 in. FC-65-86-36-2068(6).pdf
FC-65-112-36-1280(8) 65 in. 112 in. 36 in. 12 x 80 8 in. FC-65-112-36-1280(8).pdf
FC-65-112-36-2390(6) 65 in. 112 in. 36 in. 23 x 90 6 in. FC-65-112-36-2390(6).pdf
FC-69-83-36-1868(6) 69 in. 83 in. 36 in. 18 x 68 6 in. FC-69-83-36-1868(6).pdf
FC-69-83-36-1868(9) 69 in. 83 in. 36 in. 18 x 68 9 in. FC-69-83-36-1868(9).pdf
FC-69-83-36-2056(6) 69 in. 83 in. 36 in. 20 x 56 6 in. FC-69-83-36-2056(6).pdf
FC-70-70-36-2354(8) 70 in. 70 in. 36 in. 23 x 54 8 in. FC-70-70-36-2354(8).pdf
FC-70-70-36-2458(6) 70 in. 70 in. 36 in. 24 x 58 6 in. FC-70-70-36-2458(6).pdf
FC-70-80-20-1554(7) 70 in. 80 in. 20 in. 15 x 54 7 in. FC-70-80-20-1554(7).pdf
FC-70-80-20-1568(6) 70 in. 80 in. 20 in. 15 x 68 6 in. FC-70-80-20-1568(6).pdf
FC-71-85-36-1462(12) 71 in. 85 in. 36 in. 14 x 62 12 in. FC-71-85-36-1462(12).pdf
FC-71-85-36-2071(7) 71 in. 85 in. 36 in. 20 x 71 7 in. FC-71-85-36-2071(7).pdf
FC-72-96-15-4918(29) 96 in. 72 in. 15 in. 18 x 49 29 in. FC-72-96-15-4918(29).pdf
FC-72-96-15-5830(7) 96 in. 72 in. 15 in. 30 x 58 7 in. FC-72-96-15-5830(7).pdf
FC-73-79-6-1540(12) 73 in. 79 in. 6 in. 15 x 40 12 in. FC-73-79-6-1540(12).pdf
FC-73-79-6-2064(6) 73 in. 79 in. 6 in. 20 x 64 6 in. FC-73-79-6-2064(6).pdf
FC-76-76-20-1759(7) 76 in. 76 in. 20 in. 17 x 59 7 in. FC-76-76-20-1759(7).pdf
FC-76-76-20-2564(6) 76 in. 76 in. 20 in. 25 x 64 6 in. FC-76-76-20-2564(6).pdf
FC-76-86-36-1762(11) 76 in. 86 in. 36 in. 17 x 62 11 in. FC-76-86-36-1762(11).pdf
FC-76-86-36-2472(7) 76 in. 86 in. 36 in. 24 x 72 7 in. FC-76-86-36-2472(7).pdf
FC-78-78-6-2054(14) 78 in. 78 in. 6 in. 20 x 54 14 in. FC-78-78-6-2054(14).pdf
FC-78-78-6-3064(6) 78 in. 78 in. 6 in. 30 x 64 6 in. FC-78-78-6-3064(6).pdf
FC-83-89-20-6421(6) 89 in. 83 in. 20 in. 21 x 64 6 in. FC-83-89-20-6421(6).pdf
FC-83-89-20-6926(6) 89 in. 83 in. 20 in. 26 x 69 6 in. FC-83-89-20-6926(6).pdff
FC-85-122-20-6119(7) 122 in. 85 in. 20 in. 19 x 61 7 in. FC-85-122-20-6119(7).pdff
FC-85-122-20-7521(6) 122 in. 85 in. 20 in. 21 x 75 6 in. FC-85-122-20-7521(6).pdf
FC-86-86-36-1759(12) 86 in. 86 in. 36 in. 17 x 59 12 in. FC-86-86-36-1759(12).pdf
FC-86-86-36-2868(7) 86 in. 86 in. 36 in. 28 x 68 7 in. FC-86-86-36-2868(7).pdf
FC-86-98-20-1865(14) 86 in. 98 in. 20 in. 18 x 65 14 in. FC-86-98-20-1865(14).pdf
FC-86-98-20-2884(7) 86 in. 98 in. 20 in. 28 x 84 7 in. FC-86-98-20-2884(7).pdf
FC-86-98-36-1864(8) 86 in. 98 in. 36 in. 18 x 64 8 in. FC-86-98-36-1864(8).pdf
FC-86-98-36-2570(7) 86 in. 98 in. 36 in. 25 x 70 7 in. FC-86-98-36-2570(7).pdf
FC-86-98-36-3480(7) 86 in. 98 in. 36 in. 34 x 80 7 in. FC-86-98-36-3480(7).pdf
FC-102-102-8-1862(7) 102 in. 102 in. 8 in. 18 x 62 7 in. FC-102-102-8-1862(7).pdf
FC-102-102-8-2680(7) 102 in. 102 in. 8 in. 26 x 80 7 in. FC-102-102-8-2680(7).pdf

*See Offset Opening Customizable Box Pads for other opening options.