INDEXcal — The Complete Guide: Free Anchor Design in Concrete to EN 1992-4

INDEXcal is free Windows software from the fastening manufacturer INDEX Fixing Systems for checking mechanical and chemical anchors in concrete to EN 1992-4 — the part of Eurocode 2 that covers fastenings. It produces a full verification report as a PDF.

INDEXcal — Anchor Calculation to EN 1992-4

INDEX Fixing Systems

Anchor design software to Eurocode 2 Part 4, for the INDEX anchor catalogue.

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What you get

Structural anchors — checks to EN 1992-4 under tension and shear loads.
Rebar connections — bonding reinforcing bars into existing concrete, to EN 1992-1-1.
Non-structural fixings — anchors in redundant systems such as suspended ceilings.
ETICS and railings — dedicated modules for external thermal insulation and railings.
Base plates — rectangular, circular, hexagonal, octagonal or irregular.

What to know

The software calculates only anchors from the INDEX catalogue and relies on their European Technical Assessment (ETA) data. That makes it a tool for selecting and checking a product — not a general code calculator for any anchor on the market. There are metric and inch versions, and the interface is available in six languages, including English, Spanish and German.

Related tools

For the amount of adhesive needed for the holes — INDEXmor. For screwed timber connections — INDEXwood. For analysing the frame that delivers the forces to the anchor — Ftool.