Bricklayer Interview Questions
& Model Answers, 2026

Type M is the highest strength and is used below grade and where high compressive strength is needed; type S has good strength and bond and suits exterior walls at or below grade and areas with wind or seismic demand; type N is the general-purpose exterior above-grade mortar and is often preferred for softer units because it is more forgiving; type O is low strength and used for interior or repointing of historic soft brick. The key point is that mortar should not be stronger than the unit, because a hard mortar transfers stress into the brick and cracks it.

Running bond offsets each course by half a unit and is the standard for veneer; stack bond aligns joints vertically and requires additional reinforcement because it has no interlock; common bond inserts a header course at intervals; Flemish and English bonds alternate headers and stretchers within or between courses. The pattern determines your coursing, your cut requirements at openings and corners, and whether a joint reinforcement schedule is needed.

Lay out the wall dry to establish the bond and the spacing before mixing, build the leads at each end plumb, level and correctly coursed with a story pole, then run the line between them and lay to it without pushing the line. Check the leads repeatedly with a level, keep bed and head joints to consistent thickness, and tool the joints when the mortar is thumbprint hard. A wall out of plumb at the lead is out of plumb for its whole length.

Through-wall flashing goes at the base of the wall and above and below every opening and interruption, turned up at the back and terminated properly with end dams, so water entering the cavity is collected and directed out. Weeps go immediately above the flashing at the required spacing so that water actually exits, and the cavity must be kept clear of mortar droppings that would dam it. A veneer without functioning flashing and weeps will hold water and fail regardless of how good the brickwork looks.

In cold conditions, heat the mixing water and sometimes the sand, keep units dry and above freezing, protect completed work with insulated blankets and enclosures for the required period, and stop or take additional measures below the temperature the specification names. In hot, dry, windy conditions, wet the units where absorption is high, shade materials, mix smaller batches, use retarding admixtures where allowed, and fog-cure the wall. Both regimes exist because mortar must hydrate, not freeze or flash-dry.

Cut with a wet saw or with dust control because dry cutting masonry produces respirable silica, and make cuts where they are least visible. Point by raking out to a proper depth and filling in layers rather than smearing a surface skim. Clean only after the mortar has cured for the specified period, using the mildest effective method, pre-wetting the wall, following the manufacturer's dilution, and testing on a sample panel first — an aggressive acid clean will burn the units and leach the mortar.

Give the real cause: a lead out of plumb, coursing that would not land at the opening, mortar allowed to freeze, or units laid in the wrong bond. Describe how it was found, that you rebuilt rather than argued, and the check you added — a story pole reference, checking the lead more frequently, verifying the coursing against the openings before starting. Nobody in masonry believes a bricklayer who has never rebuilt anything.

The credible answer is about setup rather than speed of hand: material and mortar staged within reach, scaffold at the right height so you are not reaching or stooping, a tender who keeps up, and consistent mixing so the mortar behaves the same all day. Say what your realistic daily unit count is for a given wall type and be honest, because a foreman will find out within one day.

Real friction points: flashing and air barrier handoffs with the waterproofing trade, embeds and anchors from the framer or steel erector, window openings sized by the glazier, and lintels. Describe raising a dimension or sequencing issue before you built past it, and getting the handoff detail agreed. Facade water problems are almost always at a trade interface rather than in the middle of anybody's work.

Concrete practices: fully planked and guarded scaffold erected and inspected by a competent person, safe access rather than climbing the frame, load limits respected when stocking the deck, and for silica, wet cutting or on-tool extraction with respiratory protection and a written exposure control plan. Masonry produces the highest silica exposures in construction and interviewers notice when a candidate has never thought about it.

Anchor to the published series: the BLS OEWS May 2025 national median for brickmasons and blockmasons is $62,120 a year ($29.87/hr), with the top 10% above $100,010. Position yourself with what you can do — commercial block, architectural veneer, restoration and repointing, or refractory work — and whether you can run leads and lay out a job. Union commercial masonry generally sits above the median.

Some masonry contractors pay by the unit or by the square. Ask how difficult work — cuts, arches, tight corners, restoration — is rated, whether the tender's time is on your rate, who pays for rebuild time when the fault was not yours, and whether there is a fallback hourly rate for non-production days. Unit rates favour a strong crew on simple walls and punish you badly on detailed work.

Whether tools and scaffolding are provided, boot and PPE allowance including respiratory protection and fit testing for silica exposure, travel and subsistence for out-of-area work, guaranteed hours through winter in cold climates, and employer-funded training for restoration or refractory specialisms. Ask how weather days are handled, because that determines annual earnings more than the rate does in many regions.