How to Attach Deck Ledger to Brick Veneer: Code-Compliant Methods and Hardware

Attaching a structural deck ledger to a brick veneer wall is one of the most challenging connections in residential construction. Building codes explicitly prohibit supporting ledgers on masonry veneer because brick veneer is designed to support only its own weight, not the additional vertical and lateral loads from a deck or roof structure. However, specialty hardware now makes code-compliant attachment possible. This guide explains the code requirements and available solutions for attaching a deck ledger to foundation walls, including the Simpson BVLZ, DeckStruc, and HDG bracket systems.

Why Brick Veneer Cannot Support Deck Ledgers Directly

The International Residential Code (IRC) is unequivocal on this point. Section R507.9.1.1 of the 2018 IRC states: Deck ledgers shall not be supported on stone or masonry veneer. The American Wood Council’s Presidential Residential Wood Deck Construction Guide reinforces this prohibition with a bold-faced DO NOT ATTACH TO BRICK VENEERS warning accompanied by an illustration of the prohibited detail. For more details, see concrete block masonry methodsThe reason is straightforward: brick veneer is a non-structural cladding, not a load-bearing element.

Brick veneer is typically 4 inches thick and attached to the structural framing with metal ties spaced every 16 to 24 inches vertically and horizontally. These ties are designed to resist wind loads pulling the brick away from the wall, not to transfer vertical gravity loads from a ledger into the structure. The veneer’s own weight is supported by the foundation or a brick ledge at each floor line. Adding deck loads to this system can cause the brick to crack, the ties to fail, or the entire veneer to separate from the building.

Even if the brick ties are in good condition, which is not always the case in older homes, the veneer lacks the compressive strength and continuity to distribute concentrated ledger loads. The IRC prohibition applies equally to new construction and retrofits, and most building inspectors will extend the same logic to any structural ledger, whether for a deck, porch roof, or addition. Attempting to attach a ledger directly through the brick into the sheathing with standard lag screws or through-bolts does not solve the problem, because the brick can crush or spall under the bearing washer, and the connection bypasses the structural framing.

Simpson BVLZ Connector: Vertical Load Solution

The Simpson Strong-Tie BVLZ connector was developed specifically to address the brick veneer attachment problem for deck ledgers. This bracket installs entirely from the exterior, eliminating the need for interior access in most applications. Each connector uses two 14-inch structural screws driven upward at a 40-degree angle through the air gap behind the brick, through the sheathing, and into the band joist. A horizontal steel compression strut bridges the gap between the bracket and the structural framing, transferring the ledger load past the brick veneer entirely.

Simpson publishes detailed load tables specifying the required on-center spacing for the BVLZ based on deck span, joist size, lumber species, and design loads. Typical spacing ranges from 16 to 40 inches. The connector is rated for vertical loads only, meaning it handles the gravity load of the deck but not the lateral load pulling the deck away from the house. An additional tension-tie device, such as the Simpson DTT2Z, must be installed to resist lateral separation forces. The DTT2Z does require interior access to the band joist, which may mean opening up finished ceilings or soffits.

Installation of the BVLZ requires precision. The screws must be driven at exactly the specified angle and depth, and the compression strut must bear firmly against the band joist. Any deviation can reduce the connector’s load rating or cause the screws to miss the joist entirely. Simpson recommends that installers use the company’s installation template and a calibrated torque wrench to ensure consistent results. For engineered lumber band joists, additional verification is needed because the BVLZ is only rated for 1.5-inch thick sawn lumber or engineered lumber with equivalent specific gravity.

Stand-Off Brackets: DeckStruc and HDG Options

For projects where the owner wants a single connector that handles both vertical and lateral loads, stand-off brackets such as the DeckStruc and HDG H1 Series provide a more integrated solution. These brackets are heavy-gauge steel assemblies that bolt through the brick veneer into the band joist or rim board, with a stand-off leg that extends past the veneer to support the deck ledger. Because the bracket transfers both gravity and lateral forces directly to the structural framing, no additional tension ties are required.

The DeckStruc bracket uses a welded steel plate that attaches to the band joist with structural screws and extends through the brick veneer to provide a bearing surface for the ledger. The bracket’s stand-off distance is factory-set to match the specific veneer thickness, which must be measured accurately before ordering. Maximum spacing ranges from 3 feet to 5 feet 3 inches on center depending on the bracket model and design loads. Installation requires removing individual bricks at each bracket location, cutting or notching them to fit around the bracket, and then reinstalling them.

The HDG H1 Series brackets follow a similar principle but offer models for different veneer thicknesses, including options for thicker stone or manufactured stone veneers. Both the DeckStruc and HDG systems are designed primarily for new construction, where the brackets can be installed before the brick veneer is laid up. In retrofit applications, bricks must be carefully removed at each bracket location and then replaced with new matching brick or the original bricks cut to fit. This process is labor-intensive but produces a clean finished appearance that is structurally sound and code-compliant.

Band Joist Strength and Engineering Approval

All of the approved attachment methods share a common requirement: the band joist must be strong enough to transfer the ledger loads into the building’s floor diaphragm. In many homes, especially those with engineered I-joists, the band joist is a thin OSB or plywood rim board that may be only 1 inch thick or less. A 1-inch rim board is not adequate for the concentrated loads imposed by deck ledgers, regardless of which bracket system is used. The band joist must be a minimum of 1.5 inches thick and securely nailed or screwed to the floor joists.

Where the band joist runs parallel to the floor joists rather than perpendicular to them, the connection is inherently weaker because the joists do not provide direct lateral support to the band. In such configurations, the band joist may need to be reinforced with additional framing, such as a second rim board nailed to the first, blocking between joists at each bracket location, or a steel flitch plate bolted to the band. A structural engineer should evaluate the band joist condition and specify any required reinforcement before the ledger attachment work begins.

Because the code does not explicitly address ledger attachment to brick veneer for non-deck applications such as porch roofs or additions, most building departments will require a stamped engineering drawing for any brick veneer ledger connection. The cost of having an engineer review the design and sign off on the installation is typically $500 to $2,000, which is a small price for the assurance that the structure will be safe. For multi-family or commercial projects where the consequences of failure are higher, engineered approval is almost always mandatory regardless of the local code official’s stance.

Comparison of Brick Veneer Deck Ledger Attachment Methods