The Arlington DBHR131 is a siding mounting block built to deliver a flush, watertight outdoor receptacle with the cleanest profile on the wall. Specified by electricians, builders, exterior renovators and stocked in Canada by Maple Electric Supply for fast contractor and project delivery.
Manufacturer resources: Browse Arlington's official Specialty Boxes catalog ↗ for full technical specifications, dimensional drawings, and installation guides.
TL;DR
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What it is: Arlington DBHR131: siding mounting block, 1/4" trade size.
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Best for: vinyl siding builds, cementboard / hardie.
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Why this one: Arlington INBOX is the original low-profile recessed weatherproof box: flush install, integrated in-use cover, and a profile that doesn't stick out from the siding.
Quick Specs
Quick reference for the DBHR131. These are the points contractors and purchasers check first when matching a part to a project drawing or a takeoff line. Full installation and listing detail lives on the Arlington spec sheet.
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Arlington part number: DBHR131
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Family: Siding Mounting Blocks
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Trade size: 1/4"
Best For
Common scopes where the Arlington DBHR131 (and the rest of the Siding Mounting Blocks line) earns its place on the spec. Not an exhaustive list, but a fast read on whether this is the right family for your application before you go deeper on the cut sheet.
- Vinyl siding builds
- Cementboard / Hardie
- Stucco light fixtures
- Brick / masonry retrofits
Why Contractors Choose It
- Listed for the applications stated on the Arlington spec sheet, so there are no jurisdictional surprises at inspection.
- Sized to common cladding profiles so the block sits flush, the J-channel meets clean, and the receptacle gasket actually seals against the siding face.
- Distributed by a Canadian-owned stocking dealer. Maple Electric Supply ships from Ontario, so the SKU lands on site without cross-border duty calcs or week-long customs holds.
- Backed by Arlington's North American manufacturing footprint: the same part number you've already spec'd on prior jobs, with the same listings.
- Replacement and add-on availability runs through a Canadian supply channel. Short-notice job sites can pull additional units without re-engineering the order.
Choose the Right Model
Compare with sibling Arlington siding mounting blocks:
See: Arlington Siding Mounting Blocks collection
Installation Notes
- Mounting blocks must be installed before siding to maintain weather-tight seal. J-channel integration where applicable.
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Primary code reference: CEC Section 12 (Wiring Methods); CEC 26-700 (Wet Location Equipment).
- Verify the Arlington listing on the current spec sheet matches your local AHJ's adopted code edition. Provincial amendments to the CEC can override the federal base text.
- Confirm trade size, mounting style, and accessory pairing against the project drawings before ordering in volume. Maple Electric Supply's counter staff can pull the cut sheet on request.
- Installation must be completed by a qualified electrician where required by local code; the homeowner / unlicensed scope is narrower in Ontario than in several US jurisdictions.
Common Mistakes to Avoid
Patterns we see on returns, callbacks, and inspection re-visits around the Siding Mounting Blocks line. Most are small and avoidable when the right SKU and accessory get pulled at the counter.
- Choosing a vinyl block on Hardie (different J-channel depth)
- Mounting before flashing
- Skipping the caulk seal at the perimeter
- Painting before priming the paintable surface
Frequently Bought With
- Arlington INBOX Weatherproof Boxes
- Arlington Liquid Tight Fittings
- Arlington Specialty Boxes
Sourcing in Ontario
Sourcing the DBHR131 through Maple Electric Supply means a Canadian invoice in CAD, GST/HST handled at the supplier level, and no surprise duty calls from a brokerage three weeks after the project closes. We stock the most-spec'd Arlington siding mounting blocks on-shelf in Ontario and pull additional units from the manufacturer on a short cadence for the long tail.
Frequently Asked Questions
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Is the Arlington DBHR131 UL and/or CSA listed?
Arlington components are listed for the applications stated by the manufacturer. Always verify the listing on the product's spec sheet against your jurisdiction's adopted code.
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Is this part made in the USA?
Arlington Industries manufactures the bulk of its catalog in the United States. Confirm origin on the current spec sheet if it matters for your project.
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Which siding type is this designed for?
Varies by configuration. Check the DBHR131 datasheet for the exact dimensions, ratings, and accessory list before ordering in volume. Arlington updates spec sheets periodically, so spec the live version from the manufacturer's site for the current job.
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New construction or retrofit?
The DBHR131 datasheet is the authoritative source on this. Arlington publishes torque specs, listed conductor ranges, and accepted accessories per part number, and those values shift between revisions even when the SKU stays the same.
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Paintable?
Confirm against the published Arlington DBHR131 cut sheet; values shift between configurations even inside the same family. Maple Electric Supply can email a current copy on request and flag any recent revisions that changed listed ratings.
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Does the block include the J-channel integration?
Maple Electric Supply can pull the DBHR131 spec sheet on request. Answers here depend on the specific configuration and the listed conditions of use. Anything that affects code compliance should come straight from the manufacturer's current published documentation.
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Mounts what kind of fixture (light, GFCI, hose bib)?
Refer to the DBHR131 product page on Arlington's site or contact Maple Electric Supply for a copy of the current spec sheet with all listed ratings. Generic family-level guidance is a starting point, but the SKU-level sheet is what the inspector will reference.
Buy Arlington siding mounting blocks from a Canadian distributor. Maple Electric Supply ships from Ontario stock; technical support included.
