Tubes, sheet, hot-rolled HEA, HEB, HEM, IPE, INP, UPN, UPE sections, angles, bars and welded mesh. Weight per metre, per piece and per order.
Collect the calculated products here and see the weight and cost of the whole order: how many kilograms you order, what the material costs and whether it all fits in the vehicle. The list stays saved in the browser, copies to Excel or prints, for example as an estimate for your customer, under your company name. The fields below are optional.
Values are theoretical: nominal section × material density. HEA/HEB/HEM/IPE sections are calculated from EN 10365 dimensions (root radius included); INP, UPN and UPE use the manufacturers’ tabulated area. Square and rectangular tubes are calculated with rounded corners: cold-formed per EN 10219 or hot-finished per EN 10210, your choice. The real weight may vary with rolling tolerances (usually ±4–10%).
Enter the pieces you need and find out how many full bars to buy, how to cut them with minimal waste and which offcuts remain.
Surface and weight can be taken straight from the materials list. Paint consumption is calculated from the dry film thickness and the volume solids on the product data sheet.
The zinc pick-up varies with steel composition (silicon, phosphorus) and thickness. Galvanizers usually invoice on the weight after galvanizing. The minimum coating thickness is given by EN ISO 1461.
Estimate how much wire or how many electrodes you need, the arc time and the shielding gas consumption for a given weld length.
Values are estimates and include 10% reinforcement. Deposition efficiency and rate depend on wire diameter, current and position. For electrodes the stub end is also lost.
The principle is the same for any product: weight = section area × length × density. For steel the density is 7.85 g/cm³, so one metre of a section with a 1 cm² area weighs 0.785 kg.
kg/m = (D − t) × t × 0.02466kg/m = (2·(B + H) − 4t) × t × 0.00785kg/m² = thickness (mm) × 7.85kg/m = d² × 0.00617kg/m = a² × 0.00785kg/m = width × thickness × 0.00785kg/m = S² × 0.0068 (S = across flats)kg/m ≈ t × (2a − t) × 0.00785For another material, multiply the steel result by the density ratio: aluminium is about 2.9 times lighter (× 0.344), 304 stainless is 1% heavier (× 1.01).
Sections are rolled with tolerances. EN 10034 allows mass deviations of ±4% on HEA/HEB/IPE, and sheet is often delivered towards the lower thickness limit. Square tubes have rounded corners, which reduce the weight compared with sharp-corner calculation, which is why the calculator uses the EN 10219 radius.
All are wide flange H beams. HEA is the light series (depth slightly below the section number), HEB the standard series (depth equal to the number up to 300) and HEM the heavy series, with much thicker flanges and web. For the same size, HEB is about 40% heavier than HEA.
UPN has tapered flanges (the inside of the flange is sloped), UPE has parallel flanges, which makes bolted connections simpler. For the same depth, UPE is usually slightly lighter and wider.
They are the European (EN 10025) names for structural steels. The number is the yield strength in N/mm². The old Romanian OL37 (STAS 500) roughly matches S235JR, and OL52 matches S355J2. See the table in the Converter section.
Use the Saw cutting tool on the site: enter the pieces and the program arranges them in bars so the offcut is as small as possible, also taking the saw kerf into account.
The calculator gives theoretical weights for estimating, quoting and transport. For structural design consult an engineer and the manufacturer’s data sheets.