Enter wall size, thickness, and material weight to estimate loads fast here. Add floor reactions and openings, then download professional results in seconds today.
All values use SI units. Set openings to reduce wall weight for large voids.
Sample inputs and typical outputs for quick validation.
| Length (m) | Height (m) | Thickness (m) | Unit weight (kN/m³) | Floors | Trib. width (m) | Dead (kN/m²) | Live (kN/m²) | Openings (%) | Service load (kN) | Line load (kN/m) |
|---|---|---|---|---|---|---|---|---|---|---|
| 4.0 | 3.0 | 0.20 | 20.0 | 1 | 3.0 | 2.5 | 2.0 | 0 | 64.0 | 16.0 |
| 6.0 | 3.2 | 0.23 | 24.0 | 2 | 3.5 | 3.0 | 2.5 | 10 | ≈214.3 | ≈35.7 |
Wall load checks estimate how much vertical force a wall delivers to its support. This calculator combines wall self-weight with floor loads framing into it, then reports total load, line load, and bearing stress for planning studies.
Service total load (kN) summarizes unfactored gravity effects. Service line load (kN/m) helps distribute load to footings and grade beams. Bearing stress is shown in kPa, equal to kN/m², so it compares directly to bearing limits. Review both service and factored results for context.
Self-weight uses wall volume (length × height × thickness) multiplied by unit weight. Typical unit weights are often near 18–22 kN/m³ for masonry and 23–25 kN/m³ for normal-weight concrete. Use project specifications whenever possible, and adjust if walls are saturated or include heavy finishes.
Floor load transferred to a wall depends on tributary width, often approximated as half the span to adjacent supports. Supported area per floor is wall length × tributary width. Dead and live area loads (kN/m²) are multiplied by this area and by the number of supported floors. Ensure the tributary width reflects the framing direction and support layout.
Doors and windows reduce wall mass and therefore reduce self-weight. The openings reduction applies only to wall weight, not to floor reactions. For many openings, use a realistic percentage from drawings or compute net wall volume.
Bearing area is taken as length × thickness. Stress equals total load divided by bearing area and is reported in kPa. Because 1 kN/m² equals 1 kPa, the output reads directly without conversion. Use it to screen footing width needs, slab-edge thickening, or bearing plate sizing. Confirm with full design checks.
The load factor multiplies the service total to create a simple factored check. Since standards vary, the factor is user-controlled. Try values like 1.3 to 1.6 to test sensitivity, then export CSV or PDF for documentation.
Keep units consistent and document assumptions for dead and live loads. Residential live loads are often near 1.5–2.0 kN/m², while offices and storage can be higher. This tool does not model eccentricity, lateral loads, slenderness, lintels, or pier load sharing. Treat results as preliminary and verify final designs professionally.
Line load is total vertical load divided by wall length. It helps distribute gravity load to continuous supports like strip footings or beams.
Stress is load divided by area. Because 1 kN/m² equals 1 kPa, the bearing stress reads directly as kPa for quick comparisons.
No. Openings reduce wall weight, but floor reactions still transfer through framing unless the structural system changes.
A common estimate is half the span to the adjacent support on each side. Use your framing plan to confirm the wall’s share of floor area.
Use material specifications when available. Many masonry walls are around 18–22 kN/m³, and normal-weight concrete is often near 23–25 kN/m³.
Use a factor aligned with your screening goal or standard. For conservative preliminary checks, values like 1.3 to 1.6 are commonly explored.
No. It is for preliminary sizing and documentation. Final design should include code load combinations, detailing, stability checks, and professional review.
Use results wisely; consult engineers for final decisions always.
Important Note: All the Calculators listed in this site are for educational purpose only and we do not guarentee the accuracy of results. Please do consult with other sources as well.