Can Square Box quote from CAD files?

Yes. STEP, STP, SLDPRT, SLDASM, DXF, DWG, PDF, ZIP, RAR and product photos can be uploaded with the RFQ form.

Do you claim product certifications?

No product certification claim should be made unless project-specific certificates exist. Use the compliance wording on this site until certificates and testing are confirmed.

Can you support low MOQ work?

Yes. The site is positioned for prototype-to-small-batch production and repeat OEM cabinet programs.

Can you arrange DDP delivery to the United States?

DDP delivery options can be quoted. Import duties and tariff treatment depend on HTS classification, country of origin, material and product configuration. Final tariff confirmation should be reviewed by the importer’s customs broker.

What is covered by the free remake policy?

If a sample does not match the approved drawing or confirmed specification due to our manufacturing issue, Square Box remakes it free. Design changes, incorrect customer drawings, new requirements after approval, customs delays and courier delays are not covered.

Square Box industrial enclosure manufacturing

Custom Mounting Plates / Back Panels

Custom mounting plates and perforated metal back panels with studs and cutouts

Flat or formed mounting plates with punched holes, PEM hardware, grounding features and finish options.

Standard product series built from your drawings

This series helps panel shops reduce in-house drilling, punching and hardware installation work by receiving repeat back panels prepared from DXF/PDF layouts.

Square Box standardizes the enclosure platform, model naming, material choices and RFQ checklist so U.S. buyers can start from a clear series and still customize dimensions, cutouts, mounting details, finish and assembly scope.

Standard sizes

Suggested model starting points

Use these model numbers as RFQ starting points. Final drawing approval controls the manufactured configuration.

Standard model	Series	Size	Metric / reference	Quote notes
SB-MP-1210	SB-MP	12 × 10 in	305 × 254 mm	Final dimensions, cutouts, finish, hardware and assembly scope are confirmed from drawings.
SB-MP-1614	SB-MP	16 × 14 in	406 × 356 mm	Final dimensions, cutouts, finish, hardware and assembly scope are confirmed from drawings.
SB-MP-2016	SB-MP	20 × 16 in	508 × 406 mm	Final dimensions, cutouts, finish, hardware and assembly scope are confirmed from drawings.
SB-MP-2420	SB-MP	24 × 20 in	610 × 508 mm	Final dimensions, cutouts, finish, hardware and assembly scope are confirmed from drawings.
SB-MP-3024	SB-MP	30 × 24 in	762 × 610 mm	Final dimensions, cutouts, finish, hardware and assembly scope are confirmed from drawings.
SB-MP-3630	SB-MP	36 × 30 in	914 × 762 mm	Final dimensions, cutouts, finish, hardware and assembly scope are confirmed from drawings.
SB-MP-4836	SB-MP	48 × 36 in	1219 × 914 mm	Final dimensions, cutouts, finish, hardware and assembly scope are confirmed from drawings.

Materials

Galvanized steel, carbon steel, aluminum, stainless steel. Material grade, thickness, finish face and corrosion expectations should be confirmed before quote release.

Construction

Laser cut or punched panel blank
Deburred edges
Flatness and hole pattern check
PEM hardware or studs where specified
Grounding holes
Protective packaging for surface condition

Options

Galvanized finish
Powder coating
Threaded inserts
Studs
Labels
Panel kits packed by project

Typical applications

PLC back panels
MCC and control panel plates
Repeat panel shop kits
DIN rail subplates
OEM internal equipment plates

Image gallery

Views buyers usually need before RFQ approval

Custom mounting plates and back panels with drilled holes studs and cutouts — Flat mounting plates

Custom mounting plates with repeated hole patterns PEM studs grounding holes and prepared cutouts — Hole patterns, studs and grounding points

Protective packaging for custom mounting plates and repeat back panel kits — Protective panel packaging

RFQ checklist

3D CAD and 2D PDF drawings
Selected standard model or target size
Material, thickness and finish target
Cutouts, gland plate, fan, louver, gasket, lock and hinge notes
Mounting plate, DIN rail, wire duct or BOM assembly scope
Quantity, prototype or batch intent
Inspection photo requirements
Shipping destination and delivery target

Compliance notes

Built for NEMA-style and IP-rated applications. Final rating depends on design, materials and testing requirements.

Square Box provides custom enclosure fabrication, component mounting and customer-BOM assembly support. Final electrical listing, field acceptance and project compliance depend on the complete design, selected components, testing and certification requirements.

No product certification, listing or country-of-origin claim should be assumed unless project-specific documentation exists.

Start a Custom Mounting Plates / Back Panels RFQ

Send CAD, PDF, model target, quantity, material, finish, assembly scope and shipping destination for a 24-hour quote response.

Upload Drawing for 24h Quote