What changes the decision by product family
| Product family | Cost sensitivity | Execution sensitivity | Evidence gate |
|---|---|---|---|
| Porcelain slabs and tiles | Container utilization, freight, breakage, destination handling | Crates, handling points, unloading | Specification, batch, product documentation |
| Aluminium profiles | Tooling, MOQ, alloy/finish, length, freight per kg | Long-length packing, replenishment cycle | Drawing revision, tolerance, finish and system evidence |
| HVAC components | Mixed-shipment allocation, freight mode, duty by line | Multiple packages, urgent parts, delivery appointments | Line-level description and product-rule mapping |
| Steel and rebar | Weight, freight, quota/trade measures, CBAM | Equipment, loading, border and allocation timing | Grade/standard, plant evidence, current tariff measures |
| Doors and windows | Volume, glazing, packaging, breakage, project delivery | Dimensions, site access, sequence, claims | System performance and declarations |
Cross-category findings
Specification dominates first
A cheaper quote with a different grade, finish, dimension, package, or testing scope is not a saving.
Freight is not one line
Equipment, utilization, origin, main carriage, destination, and inland delivery respond to different drivers.
Uncertainty needs a price
Show duty, freight, breakage, lead-time, and compliance sensitivities instead of hiding them inside a single number.
Cash and cost differ
Import VAT, deposits, long lead times, and inventory create working-capital exposure even when recoverable or temporary.
How to use the benchmark
Pick the row closest to the product, then make its high-sensitivity fields mandatory in every RFQ. Use the cost template and document checklist to compare suppliers on one basis.
Update policy
Reviewed 10 July 2026. This page is updated when the decision framework changes materially. Time-sensitive rates and trade measures belong in a dated product case or live professional check, not in a timeless benchmark table.
Primary sources
Official sources used to frame the guidance. Check the current product and transaction before acting.
Compare your real specification and destination
Use a transparent cost model, or request a source-backed supplier and route comparison for one construction product.