Brick Steps Building Methods: Solid Brick, Concrete Core, and Block Core

Choosing a brick steps method means deciding what sits behind the brick you see. A flight can be brick all the way through, brick facing on a concrete core, or brick facing on a block core. The finished face can look the same under all three, but the brick count, the core work, and the anchorage are different, so the method has to be fixed before the order is placed.

Which brick steps building method fits the flight?

Use solid brick when the flight itself is built from brick. Use brick facing over a concrete core when a concrete flight already exists or is being poured and brick is the finish. Use brick facing over a block core when the flight is built up from block and brick is the finish. The choice follows what is already there and what the project documents call for, not which face looks best in a photo.

The face-area count from the measurement guide belongs to the two facing methods. It does not belong to a solid flight, and the next sections show why.

How are solid brick steps built?

Solid brick steps are laid brick by brick in mortar, course by course, until each step reaches its height, depth, and width. Every course is part of the flight, including the brick inside the flight that no one sees after the next course goes on. The bond, the joint width, and the course heights have to stay consistent through the whole flight, because a course that drifts changes every riser above it.

Solid construction suits a new flight where brick is the chosen structural material and the project documents detail it that way. It uses the most brick of the three methods, because the interior is brick too. It also puts the most laying work into the flight, since each course is laid by hand rather than formed and poured.

How are brick steps built over a concrete core?

The concrete core is built first, using the same base, form, pour, finish, and cure procedure as plain concrete steps. QUIKRETE describes brick as facing over concrete in exactly these terms, as an alternate finish to plain concrete steps. The core is formed to the step profile minus the thickness of the brick facing and its mortar bed, so the finished flight lands on the planned tread depths and riser heights.

Once the concrete has cured, the brick facing goes on in this sequence. Wet the bricks several hours before laying, so dry brick does not draw too much water out of the mortar. Lay a 1/2 in wet mortar bed between form boards set one brick length apart, set each brick in the bed, and leave 1/2 in open joints, using a 1/2 in wooden spacer to keep the joints uniform. Tap each brick into place with a wooden mallet, pack the joints, and tool them with a concave jointer. The QUIKRETE example lays the facing in running bond and names basket weave as another pattern choice, with bricks laid flat or on edge.

This method suits a flight where concrete is already the practical core, or where an existing concrete flight needs a brick finish. The concrete carries the flight, the brick carries the wear and the look, and the two materials meet at the mortar bed. The facing must not go on before the core has cured, because a facing laid on green concrete moves with the core while it is still changing.

How are brick steps built over a block core?

The block core is built from concrete block laid to the step profile, again minus the facing thickness, and the brick goes on as anchored veneer over that backing. The Brick Industry Association Technical Note 28D covers anchored brick veneer on concrete masonry backing, and its tie requirements cover veneer with a backing of concrete masonry or concrete. That makes the block-core method a tied system, not brick stuck onto block with mortar alone.

The anchorage detail for a step flight has to come from the project documents. Wall veneer tie rules do not transfer directly to steps, because a step flight loads its facing differently from a wall and exposes it to foot traffic and standing water. No step-specific tie schedule is given here, because no source in this pack publishes one. A flight built this way without a stated anchorage detail is an unfinished detail, even if the face looks complete.

This method suits a flight where block is the practical core material and the finished face must be brick. It adds a second count to the job: the face brick count plus the block count for the core. The block count follows the core dimensions and the block size in the project documents, and it is not part of the brick pack order.

What does each method change for the brick count?

The facing methods share one count basis, and the solid method needs another. The table below states the basis for each method, so the count is never carried from one method to another by accident.

Worked check for the facing methods, using the fixture flight from the measurement guide. The flight has 3 steps, each 4 ft wide, with a tread depth of 1 ft and a riser height of 0.5 ft. Its tread faces total 12 ft2, its riser faces total 6 ft2, and its two side cheeks add 6 ft2, for a total face area of 24 ft2. At the modular rate of 6.75 bricks per ft2 from Brick Industry Association Technical Note 10, 24 x 6.75 gives 162 modular bricks net. That 162 is the net face brick count for either facing method, before waste and pack rounding, which the ordering page handles.

The smaller flight checks the same way. It has 2 steps, each 3 ft wide, with the same tread depth and riser height. Its tread and riser faces total 9 ft2 and its two side cheeks add 3 ft2, for 12 ft2. At 6.75 bricks per ft2, 12 x 6.75 gives 81 modular bricks net for either facing method. The metric check matches for the fixture flight: 24 ft2 converts to 2.2297 m2, and 6.75 bricks per ft2 converts to 72.66 bricks per m2, which returns the same 162 bricks before rounding.

For a solid flight, neither 162 nor 81 is the order count. The solid count adds the hidden brick inside each step, and that addition depends on the step depth, the bond, and how the interior courses are laid. The project documents must state that count, or state the volume and bond it comes from. A method chosen after the order is placed can still be corrected on paper, but a method chosen after delivery means either a short order or a surplus core material with nowhere to go.

What do all three methods still need from the base and the water path?

The method changes the core, not the need for a sound base and a way out for water. The footing and base follow the project documents and the local ground and frost conditions for the site. No universal footing depth is given here, because no source in this pack publishes one for this flight, and a depth copied from another site or climate is a guess, not a specification.

Water needs a planned path on every method. Treads must shed water away from the flight rather than holding it against the risers or the building, and any water that gets behind the facing needs a way out at the base instead of sitting inside the flight. The project detail must show that path. A facing method is at particular risk here, because water trapped between the facing and its core works on the bond from behind, where it cannot be seen until the facing loosens.

Changing methods partway through a flight creates its own problem. Solid brick, concrete core, and block core each take up thickness differently, so a method change between steps shifts the finished tread depth or riser height unless the core is re-formed to suit. One method for the whole flight keeps the finished profile consistent.

Which method mistakes change the count or the build?

• Ordering a solid flight from the face-area count, then running short on hidden brick.
• Laying facing on a concrete core before the core has cured.
• Forming a core to the finished profile with no allowance for the facing thickness and mortar bed, so the finished risers land high.
• Treating block-core facing as mortar-only finish with no anchorage detail.
• Carrying wall veneer tie spacing onto a step flight without a step-specific detail.
• Leaving no drainage path behind the facing, so trapped water works on the bond unseen.
• Mixing methods between steps, so the finished profile shifts mid-flight.
• Laying dry brick that draws water out of the mortar before the bond sets.
• Counting the core material in the brick order, or the brick in the core order.
• Choosing the method after the order, when the count basis has already been fixed wrong.

What this page does not decide

Product and mortar selection belong to the brick steps guide, measurement belongs to the measurement guide, and waste and pack rounding belong to the ordering page. Footing depth, concrete strength, block size, tie spacing, riser-height limits, and tread-depth limits belong to the project documents and the responsible qualified people. None of those figures is set here, and no method in this comparison approves a step layout on its own.